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Relationship of Poverty Rate to Income Inequality

Dr. Terry Olson

December 19, 2009

1

Final Draft

I. Introduction

The traditional goals of economics are short run price level stability and long run output growth. For centuries, these goals were sufficient to occupy the minds of economists and accurately reflect the political goals of the period. However, following the industrial revolution, the earnings from long run economic output growth began to be increasingly concentrated in the hands of a few select entrepreneurs. As this stratification of output continued, its appearance became completely apparent to observers by the mid-twentieth century. That same period brought with it an increased value placed in the equality of citizens of democratic nations. These two things coupled together have led to a reconsideration of the goals of economics by some economists. These economists desired to find a way to measure how the long run output growth had been divided rather than just the level of that growth. The desired measurement was a measurement of income inequality. The measure that eventually won out was the Gini coefficient, or the similar Gini index. The Gini coefficient finally allowed a useful study of income inequality. That study became the subfield of economics focusing on the relationship of income to income inequality. This paper will review the literature on that topic before expounding on the theory connecting poverty rate and income inequality and then testing those theories empirically.

II. Literature Review

The literature in the subfield of economics focusing on the relationship of income inequality and income begins with Simon Kuznets’ (1955) groundbreaking article “Economic Growth and Income Inequality”. Since this article is the foundational article on this topic and provides the basic model all of the other papers build upon, an understanding of the other literature requires an understanding of Kuznets’ article. Kuznets begins his article by lamenting the lack of high quality data on the subject on economic inequality when he wrote. Despite the lack of reliable data on a broad spectrum of countries Kuznets does go on and draws a conclusion about the data. He concludes that there is an inverse-U shaped relationship between inequality in a country and that country’s income. The inverse U-shape means that as a country’s income grows at first income inequality grows, levels out, and then finally decreases in the final stages of growth. Kuznets goes on to point out the reasons that inequality should go up with growth, and uses those reasons to support the first half of the inverse-U shape. He then goes on to demonstrate the reasons explaining the second half of the curve’s shape. These reasons were dormant during the early stages of growth, but they become dominant during the later stages of growth. Kuznets demonstrates his idea with an extended example based on two sectors that are modeled after the rural and urban workforces at the time. The example allows Kuznets to show a case roughly modeled after the industrialization of the Western nations in which economic growth causes inequality to rise and then decline. Kuznets concludes with a discussion on the difference of growth in developed versus underdeveloped nations.

Despite a few objections, such as those from Deininger and Squire (1996) and Anand and Kanbur (1985), the relationship Kuznets uncovered has withstood the test of time. Numerous authors including but in no way limited to Nielsen(1994), Dovring(1991), Ram(1997), and Jha(1996), have concluded that the inverse U-shape holds in general. The basic formula used by authors following Kutnetz in order to empirically test his model consisted of terms for an intercept, the natural logarithm of a country’s income, and the natural logarithm of a country’s income squared. The coefficients in these equations have repeatedly been found to be statistically significant. In addition to supporting Kuznets with empirical evidence, authors have reinforced and expanded on Kuznets theoretical model. Almost twenty years later, Chenery et al. (1968) lay out more clearly the conceptual reasons why there should be no trade off between growth and inequality. Besides attempts to empirically prove or disprove Kuznets’ hypothesis, the recent research on income and inequality focuses on the impact of the economic growth rate rather than the level of economic development to further explain the cross-country rates of inequality. Ahluwalia(1976) and Fields(1980) added additive growth terms to the equation in attempts to see if there was a relationship between the growth rate and income inequality, but they each found that relationship to be statistically insignificant. However, Winegarden(1979) and Ram(1997) found a theoretical basis for the economic growth rate to affect the level of income inequality and found the additive growth term to be statistically significant. Although, the growth term helped explain discrepancies in the model, there was still no literature helping to explain why the high income countries had developed when they did while the low income countries had failed to develop. Chang and Ram(2000) offered a study on the differences between the two groups in their paper “Level of Development, Rate of Economic Growth, and Income Inequality”.

Chang and Ram also offer a concise summarization of the theoretical reasons for the Kuznets hypothesis. These reasons leave two major parts of the relationship between growth and income inequality unexplored. The first such area, which Chang and Ram touch on but do not go into, is the different effects of income inequality within a large portion of the population beneath the poverty line and income inequality with only a negligible portion of the population below the poverty line. Since Chang and Ram wrote in 2000, the passage of time and the economic changes that have happened since give the perspective to see the other area they have missed. That area is the effect that the recent and ongoing technological revolution will have on a model based on the idea of the industrial revolution. An attempt to fill in the first of these holes constitutes the basis for this paper.

III. Theory

Simon Kuznets and subsequent authors clearly laid out the relationship of income and income inequality. The reasons they espoused to explain the negative relationship between income and income inequality at high levels of income are political interference, demographics, the emergence of new industries, and work incentives. Political interference is the tendency of countries with higher levels of income to become democracies, and those democracies tend to force equality on the populace through progressive taxes and the like. The idea behind demographics is the tendency of wealthier citizens to reproduce less often that leads to the descendents of the top five percent of population being less than the top five percent of the population, which offsets the effect of cumulative savings in income inequality. The emergence of new industries is the tendency for new explosive industries to benefit their founders far more than they benefit others, and those founders tend to not already be in the top percentage of wealth holders. Work incentives are the tendency of richer individuals to work less strenuously because there are less possible advancement benefits. However, they neglected to distinguish between poverty levels and levels of income inequality. Three out of the four reasons for decreasing income inequality with higher levels of income only apply with full magnitude when income inequality and the level of poverty are correlated. When the poverty level drops while income increases, it offsets the effects of political interference, demographics, and work incentives on income inequality. Democracies’ tendency to redistribute wealth is decreased when poverty rates are low as they will be at very high levels of income because the political will to redistribute income begins to fail as the tragedies of poverty become rarer. Thus, the political interference reason loses force at low levels of poverty, and so it ceases its reduction of income inequality. Also at low levels of poverty, the birthrate of the entire population decreases to match the lowered birthrate of the wealthy. This decrease reduces the offsetting of cumulative savings by demographics, which keeps demographics from decreasing income inequality. Lastly, low levels of poverty also reduce the work incentives of the entire population to some extent. Even if work incentives are not completely offset, their effect on reducing income inequality is reduced. Thus, low levels of poverty should be associated with higher levels of income inequality.

IV. Data & Variables

In order to study the effect of the poverty rate on income inequality, it is necessary to have the correct variables and the data to accompany them. Obviously, variables are needed for income inequality and poverty rate, labeled INEQ and POVR, respectively. In addition, in accordance with the Kuznets hypothesis, variables are needed for the logarithm of income, labeled LRY, and the logarithm of income, quantity squared, labeled LRYSQ. Lastly, a variable for the overall development is added to account for the standard of living that has a similar effect as poverty rate, but cannot be measured in the poverty rate, labeled HDI.

INEQ is the rate of inequality measured by the Gini coefficient. The Gini coefficient is the area of between the 45 degree line of complete income equality and the Lorenz curve. The Lorenz curve is the increasing function that plots the percentage of income against the percentage of population who earn that percent of the income. This variable measures the income inequality in a nation. This data was collected from the 2003 edition of World Development Indicators.

LRY is the logarithm of the Gross Domestic Product of a country. The logarithm adjusts for the vast difference between the outputs of different nations. The adjustment allows for a linear relationship to be derived. This variable measures part of the effect of a country’s income on income inequality. This data was based on the GDP data collected from the 2003 edition of World Development Indicators.

LRYSQ is the logarithm of the Gross Domestic Product of a country, quantity squared. Again, the logarithm adjusts for the vast difference between the outputs of different nations, but this adjustment allows for a quadratic relationship to be derived. This variable measures the rest of the effect of a country’s income on income inequality in that it checks for the inverse U-shape of the relationship between income and income inequality. This data was based on the GDP data collected from the 2003 edition of World Development Indicators.

HDI is the ranking of a country on the United Nations’ Human Development Index. This index is a measurement of a country’s overall development. In this study, development is taken as a proxy for poverty rate due to a lack of reliable available numbers comparing poverty between nations. A higher level of development, which means a lower HDI ranking, is associated with lower levels of poverty so the sign of this variable will be the same as the expected sign of poverty rate. Thus, this variable measures the effect of a nation’s poverty on income inequality. The data for HDI was collected from the United Nations’ Human Development Index.

V. Model & Results

The model used is based upon the model used throughout the literature on income and income inequality. That model is

INEQ = α + β0*LRY + β1*LRYSQ + ε

where INEQ, LRY, and LRYSQ are the same as explained in the data section. The constant term is α, and ε is the error term. The term needed for this study can be added into this equation. When, they are added the equation becomes

INEQ = α + β0*LRY + β1*LRYSQ + β2*HDI + ε.

The results in Table 1, Table 2, and Table 3 in the rest of the section are from two separate regressions. Regression 1 is the regression using all 119 available data points from the above sources, and Regression 2 is the regression using the largest 25 economies by income level. In these regressions, INEQ is the dependent variable with all other variables being independent.

Table 1[footnoteRef:1],[footnoteRef:2] [1: The standard errors in the first set of parentheses for each term is the standard errors using the standard ordinary least squares method, and the standard errors in the second set of parentheses for each term is the standard errors using the heteroskedasticity-consistent covariance method] [2: * Significant at the 15% level, **Significant at the 5% level, and ***Significant at the 1% level]

Regression 1

Regression 2

Coefficient on LRY

-0.13139

(0.1588)

(0.1245)

1.5423

(1.148)

(0.9596)*

Coefficient on LRYSQ

0.0067255

(0.007451)

(0.005637)

-0.061512

(0.04807)

(0.04007)*

Coefficient on HDI

0.00099077

(0.0002271)***

(0.0002016)***

0.0012448

(0.0003837)***

(0.0004678)***

Constant

0.94956

(0.8482)

(0.6885)

-9.3026

(6.844)

(5.735)*

R2

0.2247

0.4422

R2-Adjusted

0.2045

0.3625

Durbin-Watson

2.0493

2.4477

F-value from ANOVA table-From Mean

11.110

5.549

χ2 Test Statistic

3.173

4.853

# of Runs

62

12

# of Positive Errors

52

9

# of Negative Errors

67

16

Normal Statistic

0.4576

-0.2314

Based on regression 1, the model equation could be written as

INEQ = 0.94956 - 0.13139*LRY + 0.0067255*LRYSQ + 0.00099077*HDI,

but based on regression 2 the equation could be written as

INEQ = -9.3026 + 1.5423*LRY - 0.061512*LRYSQ + 0.0012448*HDI

The interpretations of the coefficients are as follows for regression 1. The Gini coefficient of a country is expected to fall by 0.13139 for every 1 percent increase in the income of that country, all else constant. The Gini coefficient of a country is expected to rise by 0.0067255 for every 1 percent increase in income, quantity squared of that country, all else constant. The Gini coefficient of a country is expected to fall by 0.13139 for every 1 spot increase in the Human Development Index Ranking of that country, all else constant.

The interpretations of the coefficients are as follows for regression 2. The Gini coefficient of a country is expected to rise by 0. 1.5423 for every 1 percent increase in the income of that country, all else constant. The Gini coefficient of a country is expected to fall by 0.061512 for every 1 percent increase in the income, quantity squared for that country, all else constant. The Gini coefficient of a country is expected to fall by 0.0012448 for every 1 spot increase in the Human Development Index Ranking of that country, all else constant.

Individually testing each coefficient for significance led to the results listed in Table 1. As a summary of those results for regression 1 using the standard OLS method, the values of the coefficient of LRY, the coefficient of LRYSQ, and the constant were found to be insignificant at all reasonable levels while the coefficient of HDI is significant at the 1% level. As a summary of those results for regression 1 using the heteroskedasticity-consistent covariance method, the values of the coefficient of LRY, the coefficient of LRYSQ, and the constant were found to be insignificant at all reasonable levels while the coefficient of HDI is significant at the 1% level. As a summary of those results for regression 2 using the standard OLS method, the values of the coefficient of LRY, the coefficient of LRYSQ, and the constant were found to be insignificant at all reasonable levels while the coefficient of HDI is significant at the 1% level. As a summary of those results for regression 2 using the heteroskedasticity-consistent covariance method, the values of the coefficient of LRY, the coefficient of LRYSQ, and the constant were found to be significant at the 15% level while the coefficient of HDI is significant at the 1% level.

From the R2 values, 22.47% of the sample variability in the Gini coefficient is explained by regression model 1 and 44.22% of the sample variability in the Gini coefficient is explained by regression model 2. From the adjusted R2 values, 20.45% of the sample variability in the Gini coefficient is explained by regression model 1 controlling for the number of degrees of freedom and 36.25% of the sample variability in the Gini coefficient is explained by regression model 2 controlling for the degrees of freedom.

A goodness of fit test was performed. The test used the F-values from ANOVA table- from mean listed in Table 1. For regression 1, it can be concluded that the model does have significant explanatory power at the 2% level. For regression 2, it can be concluded that the model has significant explanatory power at all reasonable levels of significance.

The rule of thumb test for simple multicollinearity requires Tables 2 and 3 below.

Table 2: The Correlation Matrix of Variables for Regression 1

Variable

INEQ

LRY

LRYSQ

HDI

INEQ

1.0000

N/A

N/A

N/A

LRY

-0.28855

1.0000

N/A

N/A

LRYSQ

-0.28176

0.99847

1.0000

N/A

HDI

0.46235

-0.73264

-0.72734

1.0000

Table 3: The Correlation Matrix of Variables for Regression 2

Variable

INEQ

LRY

LRYSQ

HDI

INEQ

1.0000

N/A

N/A

N/A

LRY

0.31334

1.0000

N/A

N/A

LRYSQ

0.30743

0.99974

1.0000

N/A

HDI

0.45043

-0.25446

-0.25626

1.0000

Using that test reveals only the expected multicollinearities. The only multicollinearity between independent variables in regression 1 is between LRY and LRYSQ, which are obviously related because the second is the square of the first. In regression 2, the only multicollinearity between independent variables is again between LRY and LRYSQ, which are obviously related.

Since only the expected simple multicollinearity was found using the rule of thumb, the use of Klein’s rule of thumb is needed to test for higher-order multicollinearity. The highest R2 for any independent variable regressed against the other independent variable is 0.9970 for regression 1 and 0.9995 for regression 2. Those numbers are far higher the R2 values from their respective regressions. So in both regressions there is an indication of severe multicollinearity.

In order to test for first-order autocorrelation, the runs test is used. In regression 1, the number of positive error terms is 52 and the number of negative error terms is 67. Since 52>20 and 67>20, the small sample test cannot be used. Then using the normal statistic, it is found that there is no problem with first-order autocorrelation at any reasonable level of significance. In regression 2, the number of positive error terms is 9 and the number of negative error terms is 16. Since 9<20 and 16<20, for regression 2, the small sample test can be used. Since the number of runs is 12, which is greater than the critical value 7 and less than the critical value of 18, we can conclude that we have no problem with first-order autocorrelation.

As another check for first-order autocorrelation, we can use the Durbin-Watson test. For regression 1, the Durbin-Watson test concludes at both the 0.10 and 0.02 levels that there is no first-order autocorrelation. For regression 2, the test concludes that there is no first-order autocorrelation at the 0.10 level but is inconclusive at the 0.02 level.

The last statistical measure that was checked was heteroskedasticity. This was checked using the χ2 test statistic. Using that statistic, both regressions were evaluated. Both regressions were found to have severe heteroskedasticity. As a result, the heteroskedasticity-consistent covariance method was used to correct the standard errors, which made each coefficient more significant.

VI. Conclusion

Looking at both regressions, regression 2 has far better results than regression 1. Regression 2 confirms the Kuznets hypothesis. However, both regressions refute my hypothesis that higher HDI rankings should mean less inequality. The problem could come from one of two sources. Either the problem is in my theory or in my data. I believe that my theory is well reasoned and that leads to the conclusion that there is a problem with the data. Most likely, the Human Development Index fails to be sufficient proxy for level of poverty in a nation. Given the likely data errors, I do believe that further research in this area could lead to statistically significant results confirming my hypothesis.

VII. Bibliography

Ahluwalia, Montek S. "Income Distribution and Development: Some Stylized Facts,” The American Economic Review 66, 2 (1976): 128-135. http://www.jstor.org/stable/1817209 (accessed October 27, 2009).

Anand, Sudhir and S.M.R. Kanbur. "Poverty Under the Kuznets Process,” The Economic Journal 95 (1985): 42-50. http://www.jstor.org/stable/2232868 (accessed October 27, 2009).

Chang, Jih Y. and Rati Ram. "Level of Development, Rate of Economic Growth, and Income Inequality,” Economic Development and Cultural Change 48, 4 (2000): 787-799. http://www.jstor.org/stable/1155035 (accessed October 27, 2009).

Chenery, Hollis B. and Lance Taylor. "Level Development Patterns: Among Countries and Over Time,” The Review of Economics and Statistics 50, 4 (1968): 391-416. http://www.jstor.org/stable/1926806 (accessed October 27, 2009).

Deininger, Klaus and Lyn Squire. "A New Data Set Measuring Income Inequality,” The World Bank Economic Review 10, 3 (1996): 565-591. http://www.jstor.org/stable/3990058 (accessed October 27, 2009).

Dovring,Folke. Inequality: The Political Economy of Distribution. New York: Praeger, 1991.

Fields,Gary S. Poverty, Inequality, and Development. New York: Cambridge University Press, 1980.

Jha, Sailesh K. "The Kuznets curve: A reassessment,” World Development 24 (1996): 773-780.

Kuznets, Simon, and "Economic Growth and Income Inequality," The American Economic Review 45, 1 (1955): 1-28. http://www.jstor.org/stable/1811581 (accessed October 27, 2009).

Nielsen, Francois. "Income Inequality and Industrial Dvelopment: Dualism Revisited,” American Sociological Review 59, 5 (1994): 654-677. http://www.jstor.org/stable/2096442 (accessed October 27, 2009).

Ram, Rati. "Level of Economic Development and Income Inequality: Evidence from the Postwar Developed World,” Southern Economic Journal 64, 2 (1997): 576-583. http://www.jstor.org/stable/1060869 (accessed October 27, 2009).

Winegarden, C.R. "Schooling and Income Distribution: Evidence from International Data,” Economica 46, 181 (1979): 83-87. http://www.jstor.org/stable/2553099 (accessed October 27, 2009).

VIII. SHAZAM Output

Regression 1

Welcome to SHAZAM - Version 10.0 -  JUL 2004 SYSTEM=WIN-XP   PAR=  4000

CURRENT WORKING DIRECTORY IS: C:\PROGRA~1\SHAZAM

|_Sample 1 119

|_Read (Y:\classes\mydata.sha) INEQ LRY LRYSQ HDI/ List Skiplines = 1

UNIT 88 IS NOW ASSIGNED TO: Y:\classes\mydata.sha

    4 VARIABLES AND      119 OBSERVATIONS STARTING AT OBS       1

 

       INEQ           LRY            LRYSQ          HDI

   0.4080000       13.00283       169.0735       12.00000

   0.3490000       12.61715       159.1925       8.000000

   0.3520000       12.56664       157.9205       3.000000

   0.3820000       12.26625       150.4608       22.00000

   0.3600000       12.15354       147.7085       16.00000

   0.3270000       12.11721       146.8267       10.00000

   0.4030000       12.06410       145.5424       81.00000

   0.3600000       12.03693       144.8877       20.00000

   0.3150000       11.84166       140.2248       4.000000

   0.5190000       11.79086       139.0244       52.00000

   0.3250000       11.76479       138.4103       13.00000

   0.5910000       11.70114       136.9168       70.00000

   0.3780000       11.67883       136.3951       128.0000

   0.3160000       11.62548       135.1519       26.00000

   0.3260000       11.57994       134.0950       9.000000

   0.4560000       11.49129       132.0498       67.00000

   0.3310000       11.39286       129.7972       7.000000

   0.2500000       11.36099       129.0721       17.00000

   0.2500000       11.32183       128.1839       6.000000

   0.3050000       11.27542       127.1350       15.00000

   0.3160000       11.24614       126.4758       37.00000

   0.2580000       11.22049       125.8993       2.000000

   0.2470000       11.20829       125.6257       14.00000

   0.4000000       11.16933       124.7539       84.00000

   0.3030000       11.16228       124.5966       107.0000

   0.4910000       11.09673       123.1374       74.00000

   0.2560000       11.08226       122.8166       11.00000

   0.3540000       11.06881       122.5186       24.00000

   0.4320000       11.05949       122.3124       78.00000

   0.4300000       11.05710       122.2595       94.00000

   0.5930000       11.05413       122.1938       121.0000

   0.3850000       11.04061       121.8952       29.00000

   0.3550000       11.03473       121.7652       23.00000

   0.3590000       11.01409       121.3102       5.000000

   0.3440000       10.99333       120.8533       112.0000

   0.4920000       10.94468       119.7861       63.00000

   0.4250000       10.93272       119.5243       25.00000

   0.5710000       10.91599       119.1587       75.00000

   0.4610000       10.85393       117.8078       90.00000

   0.5750000       10.82249       117.1264       40.00000

   0.3300000       10.76840       115.9585       136.0000

   0.2540000       10.75423       115.6534       32.00000

   0.3530000       10.73783       115.3010       104.0000

   0.4620000       10.73277       115.1924       87.00000

   0.2440000       10.71538       114.8195       36.00000

   0.3620000       10.70265       114.5466       19.00000

   0.3180000       10.66937       113.8355       140.0000

   0.5060000       10.61672       112.7147       158.0000

   0.3030000       10.58791       112.1039       60.00000

   0.2900000       10.57505       111.8317       76.00000

   0.3950000       10.53427       110.9708       126.0000

   0.3610000       10.51485       110.5621       105.0000

   0.3120000       10.35003       107.1232       73.00000

   0.4740000       10.32656       106.6379       79.00000

   0.5990000       10.31167       106.3305       118.0000

   0.2580000       10.31088       106.3143       42.00000

   0.2900000       10.30664       106.2268       47.00000

   0.4170000       10.30081       106.1067       91.00000

   0.2840000       10.27439       105.5631       27.00000

   0.4480000       10.27105       105.4945       46.00000

   0.4370000       10.25484       105.1617       89.00000

   0.4590000       10.20704       104.1837       48.00000

   0.3440000       10.20170       104.0746       99.00000

   0.5080000       10.13796       102.7781       103.0000

   0.3190000       10.13204       102.6581       53.00000

   0.3040000       10.08704       101.7483       64.00000

   0.3630000       10.07889       101.5841       43.00000

   0.4450000       10.05675       101.1383       148.0000

   0.2680000       10.05192       101.0412       113.0000

   0.3670000       10.01749       100.3502       166.0000

   0.4850000       10.00736       100.1473       62.00000

   0.3820000       9.970393       99.40874       159.0000

   0.3340000       9.967361       99.34828       153.0000

   0.5680000       9.956984       99.14154       151.0000

   0.4030000       9.946551       98.93387       59.00000

   0.3640000       9.945912       98.92116       86.00000

   0.4770000       9.929470       98.59437       144.0000

   0.4470000       9.901404       98.03780       117.0000

   0.3790000       9.891203       97.83589       101.0000

   0.3240000       9.877889       97.57270       45.00000

   0.5770000       9.857694       97.17414       95.00000

   0.5900000       9.805229       96.14251       115.0000

   0.4860000       9.794697       95.93609       169.0000

   0.4080000       9.775392       95.55829       109.0000

   0.3740000       9.753966       95.13985       154.0000

   0.3650000       9.747023       95.00446       98.00000

   0.3670000       9.745231       94.96953       142.0000

   0.3760000       9.742332       94.91304       44.00000

   0.3960000       9.724358       94.56313       135.0000

   0.6300000       9.715669       94.39423       124.0000

   0.4130000       9.666986       93.45061       156.0000

   0.4600000       9.663135       93.37618       143.0000

   0.5260000       9.560982       91.41238       165.0000

   0.3960000       9.557146       91.33904       172.0000

   0.2820000       9.534787       90.91217       69.00000

   0.4040000       9.531990       90.85882       131.0000

   0.3890000       9.496653       90.18642       96.00000

   0.7070000       9.491362       90.08595       125.0000

   0.4030000       9.475526       89.78559       160.0000

   0.5090000       9.471145       89.70259       145.0000

   0.5050000       9.422754       88.78829       173.0000

   0.4820000       9.395501       88.27544       176.0000

   0.3790000       9.325926       86.97289       83.00000

   0.5050000       9.290925       86.32128       174.0000

   0.3700000       9.245759       85.48407       130.0000

   0.5030000       9.242790       85.42916       164.0000

   0.2890000       9.231215       85.21532       161.0000

   0.2900000       9.183270       84.33245       116.0000

   0.3620000       9.169968       84.08832       111.0000

   0.6090000       9.098644       82.78532       141.0000

   0.3470000       9.023664       81.42651       122.0000

   0.4400000       9.020775       81.37439       114.0000

   0.3730000       9.003029       81.05454       137.0000

   0.6130000       8.985426       80.73789       171.0000

   0.5600000       8.901458       79.23596       138.0000

   0.6290000       8.874482       78.75643       177.0000

   0.3330000       8.838219       78.11412       167.0000

   0.4780000       8.591065       73.80639       155.0000

   0.4700000       8.298853       68.87096       175.0000

|_STAT INEQ LRY LRYSQ HDI/PCOR

NAME        N    MEAN        ST. DEV      VARIANCE     MINIMUM      MAXIMUM

INEQ        119  0.40489     0.10077     0.10155E-01  0.24400      0.70700

LRY         119   10.377     0.95497     0.91197       8.2989       13.003

LRYSQ       119   108.59      20.178      407.16       68.871       169.07

HDI         119   89.336      53.866      2901.6       2.0000       177.00

 

  CORRELATION MATRIX OF VARIABLES -      119 OBSERVATIONS

 

 

INEQ       1.0000

LRY      -0.28855       1.0000

LRYSQ    -0.28176      0.99847       1.0000

HDI       0.46235     -0.73264     -0.72734       1.0000

              INEQ         LRY          LRYSQ        HDI

 

|_OLS INEQ LRY LRYSQ HDI/ ANOVA AUXRSQ LIST

 

REQUIRED MEMORY IS PAR=      10 CURRENT PAR=    4000

  OLS ESTIMATION

       119 OBSERVATIONS     DEPENDENT VARIABLE= INEQ

...NOTE..SAMPLE RANGE SET TO:      1,    119

R-SQUARE OF LRY      ON OTHER INDEPENDENT VARIABLES =   0.9970

R-SQUARE OF LRYSQ    ON OTHER INDEPENDENT VARIABLES =   0.9970

R-SQUARE OF HDI      ON OTHER INDEPENDENT VARIABLES =   0.5425

R-SQUARE OF CONSTANT ON OTHER INDEPENDENT VARIABLES =   0.0000

 

  R-SQUARE =   0.2247     R-SQUARE ADJUSTED =   0.2045

VARIANCE OF THE ESTIMATE-SIGMA**2 =  0.80789E-02

STANDARD ERROR OF THE ESTIMATE-SIGMA =  0.89883E-01

SUM OF SQUARED ERRORS-SSE=  0.92908

MEAN OF DEPENDENT VARIABLE =  0.40489

LOG OF THE LIKELIHOOD FUNCTION =  119.881

 

MODEL SELECTION TESTS - SEE JUDGE ET AL. (1985,P.242)

  AKAIKE (1969) FINAL PREDICTION ERROR - FPE =     0.83505E-02

     (FPE IS ALSO KNOWN AS AMEMIYA PREDICTION CRITERION - PC)

  AKAIKE (1973) INFORMATION CRITERION - LOG AIC =  -4.7855

  SCHWARZ (1978) CRITERION - LOG SC =              -4.6920

MODEL SELECTION TESTS - SEE RAMANATHAN (1998,P.165)

  CRAVEN-WAHBA (1979)

     GENERALIZED CROSS VALIDATION - GCV =          0.83599E-02

  HANNAN AND QUINN (1979) CRITERION =              0.86731E-02

  RICE (1984) CRITERION =                          0.83701E-02

  SHIBATA (1981) CRITERION =                       0.83322E-02

  SCHWARZ (1978) CRITERION - SC =                  0.91679E-02

  AKAIKE (1974) INFORMATION CRITERION - AIC =      0.83503E-02

 

                      ANALYSIS OF VARIANCE - FROM MEAN

                       SS         DF             MS                 F

REGRESSION       0.26927          3.       0.89756E-01            11.110

ERROR            0.92908        115.       0.80789E-02           P-VALUE

TOTAL             1.1983        118.       0.10155E-01             0.000

 

                      ANALYSIS OF VARIANCE - FROM ZERO

                       SS         DF             MS                 F

REGRESSION        19.778          4.        4.9444               612.016

ERROR            0.92908        115.       0.80789E-02           P-VALUE

TOTAL             20.707        119.       0.17401                 0.000

 

 

VARIABLE   ESTIMATED  STANDARD   T-RATIO        PARTIAL STANDARDIZED ELASTICITY

   NAME    COEFFICIENT   ERROR     115 DF   P-VALUE CORR. COEFFICIENT  AT MEANS

LRY      -0.13139     0.1588     -0.8277     0.410-0.077    -1.2451    -3.3675

LRYSQ     0.67255E-02 0.7451E-02  0.9026     0.369 0.084     1.3466     1.8037

HDI       0.99077E-03 0.2271E-03   4.363     0.000 0.377     0.5296     0.2186

CONSTANT  0.94956     0.8482       1.120     0.265 0.104     0.0000     2.3452

     OBS.   OBSERVED     PREDICTED   CALCULATED

      NO.    VALUE        VALUE       RESIDUAL

       1   0.40800      0.39005      0.17945E-01                I*

       2   0.34900      0.37031     -0.21313E-01               *I

       3   0.35200      0.36344     -0.11441E-01               *I

       4   0.38200      0.37157      0.10434E-01                I*

       5   0.36000      0.36192     -0.19196E-02                *

       6   0.32700      0.35482     -0.27818E-01              * I

       7   0.40300      0.42350     -0.20504E-01               *I

       8   0.36000      0.36223     -0.22330E-02                *

       9   0.31500      0.34068     -0.25679E-01               *I

      10   0.51900      0.38684      0.13216                    I      *

      11   0.32500      0.34749     -0.22492E-01               *I

      12   0.59100      0.40228      0.18872                    I         *

      13   0.37800      0.45917     -0.81172E-01           *    I

      14   0.31600      0.35676     -0.40761E-01              * I

      15   0.32600      0.33879     -0.12794E-01               *I

      16   0.45600      0.39415      0.61848E-01                I  *

      17   0.33100      0.33249     -0.14895E-02                *

      18   0.25000      0.34171     -0.91708E-01           *    I

      19   0.25000      0.32998     -0.79981E-01            *   I

      20   0.30500      0.33794     -0.32942E-01              * I

      21   0.31600      0.35915     -0.43152E-01              * I

      22   0.25800      0.32397     -0.65969E-01            *   I

      23   0.24700      0.33562     -0.88621E-01           *    I

      24   0.40000      0.40423     -0.42306E-02                *

      25   0.30300      0.42689     -0.12389             *      I

      26   0.49100      0.39299      0.98010E-01                I    *

      27   0.25600      0.33031     -0.74315E-01            *   I

      28   0.35400      0.34296      0.11042E-01                I*

      29   0.43200      0.39630      0.35703E-01                I *

      30   0.43000      0.41211      0.17892E-01                I*

      31   0.59300      0.43881      0.15419                    I        *

      32   0.38500      0.34742      0.37576E-01                I *

      33   0.35500      0.34138      0.13621E-01                I*

      34   0.35900      0.32320      0.35804E-01                I *

      35   0.34400      0.42886     -0.84864E-01           *    I

      36   0.49200      0.37953      0.11247                    I     *

      37   0.42500      0.34169      0.83307E-01                I    *

      38   0.57100      0.39097      0.18003                    I         *

      39   0.46100      0.40490      0.56099E-01                I  *

      40   0.57500      0.35491      0.22009                    I           *

      41   0.33000      0.44928     -0.11928             *      I

      42   0.25400      0.34605     -0.92047E-01           *    I

      43   0.35300      0.41717     -0.64167E-01            *   I

      44   0.46200      0.40026      0.61742E-01                I  *

      45   0.24400      0.34951     -0.10551              *     I

      46   0.36200      0.33250      0.29499E-01                I *

      47   0.31800      0.45197     -0.13397             *      I

      48   0.50600      0.46919      0.36812E-01                I *

      49   0.30300      0.37177     -0.68769E-01            *   I

      50   0.29000      0.38748     -0.97481E-01           *    I

      51   0.39500      0.43659     -0.41588E-01              * I

      52   0.36100      0.41558     -0.54584E-01             *  I

      53   0.31200      0.38241     -0.70408E-01            *   I

      54   0.47400      0.38817      0.85828E-01                I    *

      55   0.59900      0.42670      0.17230                    I         *

      56   0.25800      0.35140     -0.93398E-01           *    I

      57   0.29000      0.35632     -0.66321E-01            *   I

      58   0.41700      0.39987      0.17127E-01                I*

      59   0.28400      0.33628     -0.52279E-01             *  I

      60   0.44800      0.35508      0.92919E-01                I    *

      61   0.43700      0.39758      0.39424E-01                I *

      62   0.45900      0.35666      0.10234                    I     *

      63   0.34400      0.40716     -0.63155E-01            *   I

      64   0.50800      0.41077      0.97226E-01                I    *

      65   0.31900      0.36121     -0.42206E-01              * I

      66   0.30400      0.37190     -0.67898E-01            *   I

      67   0.36300      0.35106      0.11942E-01                I*

      68   0.44500      0.45500     -0.99993E-02               *I

      69   0.26800      0.42030     -0.15230            *       I

      70   0.36700      0.47269     -0.10569              *     I

      71   0.48500      0.36962      0.11538                    I     *

      72   0.38200      0.46561     -0.83613E-01           *    I

      73   0.33400      0.45966     -0.12566             *      I

      74   0.56800      0.45765      0.11035                    I     *

      75   0.40300      0.36647      0.36525E-01                I *

      76   0.36400      0.39322     -0.29224E-01              * I

      77   0.47700      0.45065      0.26349E-01                I*

      78   0.44700      0.42385      0.23155E-01                I*

      79   0.37900      0.40798     -0.28975E-01              * I

      80   0.32400      0.35247     -0.28471E-01              * I

      81   0.57700      0.40198      0.17502                    I         *

      82   0.59000      0.42175      0.16825                    I        *

      83   0.48600      0.47525      0.10749E-01                I*

      84   0.40800      0.41580     -0.78002E-02                *

      85   0.37400      0.46039     -0.86386E-01           *    I

      86   0.36500      0.40490     -0.39904E-01              * I

      87   0.36700      0.44850     -0.81499E-01           *    I

      88   0.37600      0.35140      0.24596E-01                I*

      89   0.39600      0.44157     -0.45573E-01             *  I

      90   0.63000      0.43068      0.19932                    I          *

      91   0.41300      0.46244     -0.49435E-01             *  I

      92   0.46000      0.44956      0.10439E-01                I*

      93   0.52600      0.47157      0.54428E-01                I  *

      94   0.39600      0.47852     -0.82518E-01           *    I

      95   0.28200      0.37654     -0.94536E-01           *    I

      96   0.40400      0.43797     -0.33973E-01              * I

      97   0.38900      0.40342     -0.14416E-01               *I

      98   0.70700      0.43217      0.27483                    I             X

      99   0.40300      0.46691     -0.63906E-01            *   I

     100   0.50900      0.45206      0.56938E-01                I  *

     101   0.50500      0.48001      0.24987E-01                I*

     102   0.48200      0.48312     -0.11166E-02                *

     103   0.37900      0.39136     -0.12356E-01               *I

     104   0.50500      0.48173      0.23267E-01                I*

     105   0.37000      0.43844     -0.68443E-01            *   I

     106   0.50300      0.47215      0.30850E-01                I *

     107   0.28900      0.46926     -0.18026          *         I

     108   0.29000      0.42504     -0.13504            *       I

     109   0.36200      0.42019     -0.58190E-01             *  I

     110   0.60900      0.45052      0.15848                    I        *

     111   0.34700      0.43241     -0.85410E-01           *    I

     112   0.44000      0.42451      0.15487E-01                I*

     113   0.37300      0.44748     -0.74481E-01            *   I

     114   0.61300      0.48135      0.13165                    I      *

     115   0.56000      0.44959      0.11041                    I     *

     116   0.62900      0.48855      0.14045                    I       *

     117   0.33300      0.47908     -0.14608            *       I

     118   0.47800      0.47070      0.73029E-02                *

     119   0.47000      0.49571     -0.25714E-01               *I

 

DURBIN-WATSON = 2.0493    VON NEUMANN RATIO = 2.0667    RHO = -0.02520

RESIDUAL SUM = -0.66582E-13  RESIDUAL VARIANCE =  0.80789E-02

SUM OF ABSOLUTE ERRORS=   8.2866

R-SQUARE BETWEEN OBSERVED AND PREDICTED = 0.2247

RUNS TEST:   62 RUNS,   52 POS,    0 ZERO,   67 NEG  NORMAL STATISTIC =  0.4576

COEFFICIENT OF SKEWNESS =   0.6739 WITH STANDARD DEVIATION OF 0.2218

COEFFICIENT OF EXCESS KURTOSIS =   0.1887 WITH STANDARD DEVIATION OF 0.4401

 

JARQUE-BERA NORMALITY TEST- CHI-SQUARE(2 DF)=    8.8666 P-VALUE= 0.012

 

      GOODNESS OF FIT TEST FOR NORMALITY OF RESIDUALS - 10 GROUPS

OBSERVED  0.0  1.0  7.0 29.0 30.0 24.0 11.0  9.0  6.0  2.0

EXPECTED  1.0  3.3  9.4 18.9 26.9 26.9 18.9  9.4  3.3  1.0

CHI-SQUARE =   15.8515 WITH  4 DEGREES OF FREEDOM, P-VALUE= 0.003

|_DIAGNOS / HET

 

REQUIRED MEMORY IS PAR=      26 CURRENT PAR=    4000

DEPENDENT VARIABLE = INEQ           119 OBSERVATIONS

REGRESSION COEFFICIENTS

  -0.131393476530      0.672545686654E-02  0.990770599959E-03  0.949555814016

 

 

HETEROSKEDASTICITY TESTS

                             CHI-SQUARE     D.F.   P-VALUE

                           TEST STATISTIC

E**2 ON YHAT:                      3.173     1    0.07488

E**2 ON YHAT**2:                   2.876     1    0.08992

E**2 ON LOG(YHAT**2):              3.455     1    0.06307

E**2 ON LAG(E**2) ARCH TEST:       0.001     1    0.97680

LOG(E**2) ON X (HARVEY) TEST:     12.322     3    0.00636

ABS(E) ON X (GLEJSER) TEST:        9.561     3    0.02270

E**2 ON X                 TEST:

           KOENKER(R2):             5.002     3    0.17167

           B-P-G (SSR) :            5.329     3    0.14922

 

...MATRIX INVERSION FAILED IN ROW    5

...RESULTS MAY BE UNRELIABLE

E**2 ON X X**2    (WHITE) TEST:

           KOENKER(R2):        **********     6  *********

           B-P-G (SSR) :       **********     6  *********

 

...MATRIX INVERSION FAILED IN ROW    5

...RESULTS MAY BE UNRELIABLE

E**2 ON X X**2 XX (WHITE) TEST:

           KOENKER(R2):        **********     9  *********

           B-P-G (SSR) :       **********     9  *********

 

 

|_OLS INEQ LRY LRYSQ HDI/ HETCOV

 

REQUIRED MEMORY IS PAR=      10 CURRENT PAR=    4000

  OLS ESTIMATION

       119 OBSERVATIONS     DEPENDENT VARIABLE= INEQ

...NOTE..SAMPLE RANGE SET TO:      1,    119

 

USING HETEROSKEDASTICITY-CONSISTENT COVARIANCE MATRIX

 

  R-SQUARE =   0.2247     R-SQUARE ADJUSTED =   0.2045

VARIANCE OF THE ESTIMATE-SIGMA**2 =  0.80789E-02

STANDARD ERROR OF THE ESTIMATE-SIGMA =  0.89883E-01

SUM OF SQUARED ERRORS-SSE=  0.92908

MEAN OF DEPENDENT VARIABLE =  0.40489

LOG OF THE LIKELIHOOD FUNCTION =  119.881

 

MODEL SELECTION TESTS - SEE JUDGE ET AL. (1985,P.242)

  AKAIKE (1969) FINAL PREDICTION ERROR - FPE =     0.83505E-02

     (FPE IS ALSO KNOWN AS AMEMIYA PREDICTION CRITERION - PC)

  AKAIKE (1973) INFORMATION CRITERION - LOG AIC =  -4.7855

  SCHWARZ (1978) CRITERION - LOG SC =              -4.6920

MODEL SELECTION TESTS - SEE RAMANATHAN (1998,P.165)

  CRAVEN-WAHBA (1979)

     GENERALIZED CROSS VALIDATION - GCV =          0.83599E-02

  HANNAN AND QUINN (1979) CRITERION =              0.86731E-02

  RICE (1984) CRITERION =                          0.83701E-02

  SHIBATA (1981) CRITERION =                       0.83322E-02

  SCHWARZ (1978) CRITERION - SC =                  0.91679E-02

  AKAIKE (1974) INFORMATION CRITERION - AIC =      0.83503E-02

 

                      ANALYSIS OF VARIANCE - FROM MEAN

                       SS         DF             MS                 F

REGRESSION       0.26927          3.       0.89756E-01            11.110

ERROR            0.92908        115.       0.80789E-02           P-VALUE

TOTAL             1.1983        118.       0.10155E-01             0.000

 

                      ANALYSIS OF VARIANCE - FROM ZERO

                       SS         DF             MS                 F

REGRESSION        19.778          4.        4.9444               612.016

ERROR            0.92908        115.       0.80789E-02           P-VALUE

TOTAL             20.707        119.       0.17401                 0.000

 

 

VARIABLE   ESTIMATED  STANDARD   T-RATIO        PARTIAL STANDARDIZED ELASTICITY

   NAME    COEFFICIENT   ERROR     115 DF   P-VALUE CORR. COEFFICIENT  AT MEANS

LRY      -0.13139     0.1245      -1.055     0.294-0.098    -1.2451    -3.3675

LRYSQ     0.67255E-02 0.5637E-02   1.193     0.235 0.111     1.3466     1.8037

HDI       0.99077E-03 0.2016E-03   4.916     0.000 0.417     0.5296     0.2186

CONSTANT  0.94956     0.6885       1.379     0.171 0.128     0.0000     2.3452

 

DURBIN-WATSON = 2.0493    VON NEUMANN RATIO = 2.0667    RHO = -0.02520

RESIDUAL SUM = -0.68612E-13  RESIDUAL VARIANCE =  0.80789E-02

SUM OF ABSOLUTE ERRORS=   8.2866

R-SQUARE BETWEEN OBSERVED AND PREDICTED = 0.2247

RUNS TEST:   62 RUNS,   52 POS,    0 ZERO,   67 NEG  NORMAL STATISTIC =  0.4576

COEFFICIENT OF SKEWNESS =   0.6739 WITH STANDARD DEVIATION OF 0.2218

COEFFICIENT OF EXCESS KURTOSIS =   0.1887 WITH STANDARD DEVIATION OF 0.4401

 

JARQUE-BERA NORMALITY TEST- CHI-SQUARE(2 DF)=    8.8666 P-VALUE= 0.012

 

      GOODNESS OF FIT TEST FOR NORMALITY OF RESIDUALS - 10 GROUPS

OBSERVED  0.0  1.0  7.0 29.0 30.0 24.0 11.0  9.0  6.0  2.0

EXPECTED  1.0  3.3  9.4 18.9 26.9 26.9 18.9  9.4  3.3  1.0

CHI-SQUARE =   15.8515 WITH  4 DEGREES OF FREEDOM, P-VALUE= 0.003

|_Stop

 

Regression 2

Welcome to SHAZAM - Version 10.0 -  JUL 2004 SYSTEM=WIN-XP   PAR=  4000

CURRENT WORKING DIRECTORY IS: C:\PROGRA~1\SHAZAM

|_Sample 1 25

|_Read (Y:\classes\mydata.sha) INEQ LRY LRYSQ HDI/ List Skiplines = 1

UNIT 88 IS NOW ASSIGNED TO: Y:\classes\mydata.sha

    4 VARIABLES AND       25 OBSERVATIONS STARTING AT OBS       1

 

       INEQ           LRY            LRYSQ          HDI

   0.4080000       13.00283       169.0735       12.00000

   0.3490000       12.61715       159.1925       8.000000

   0.3520000       12.56664       157.9205       3.000000

   0.3820000       12.26625       150.4608       22.00000

   0.3600000       12.15354       147.7085       16.00000

   0.3270000       12.11721       146.8267       10.00000

   0.4030000       12.06410       145.5424       81.00000

   0.3600000       12.03693       144.8877       20.00000

   0.3150000       11.84166       140.2248       4.000000

   0.5190000       11.79086       139.0244       52.00000

   0.3250000       11.76479       138.4103       13.00000

   0.5910000       11.70114       136.9168       70.00000

   0.3780000       11.67883       136.3951       128.0000

   0.3160000       11.62548       135.1519       26.00000

   0.3260000       11.57994       134.0950       9.000000

   0.4560000       11.49129       132.0498       67.00000

   0.3310000       11.39286       129.7972       7.000000

   0.2500000       11.36099       129.0721       17.00000

   0.2500000       11.32183       128.1839       6.000000

   0.3050000       11.27542       127.1350       15.00000

   0.3160000       11.24614       126.4758       37.00000

   0.2580000       11.22049       125.8993       2.000000

   0.2470000       11.20829       125.6257       14.00000

   0.4000000       11.16933       124.7539       84.00000

   0.3030000       11.16228       124.5966       107.0000

|_STAT INEQ LRY LRYSQ HDI/PCOR

NAME        N    MEAN        ST. DEV      VARIANCE     MINIMUM      MAXIMUM

INEQ         25  0.35308     0.80948E-01 0.65526E-02  0.24700      0.59100

LRY          25   11.746     0.50250     0.25250       11.162       13.003

LRYSQ        25   138.22      12.006      144.15       124.60       169.07

HDI          25   33.200      35.680      1273.1       2.0000       128.00

 

  CORRELATION MATRIX OF VARIABLES -       25 OBSERVATIONS

 

 

INEQ       1.0000

LRY       0.31334       1.0000

LRYSQ     0.30743      0.99974       1.0000

HDI       0.45043     -0.25446     -0.25626       1.0000

              INEQ         LRY          LRYSQ        HDI

 

|_OLS INEQ LRY LRYSQ HDI/ ANOVA AUXRSQ LIST

 

REQUIRED MEMORY IS PAR=       3 CURRENT PAR=    4000

  OLS ESTIMATION

        25 OBSERVATIONS     DEPENDENT VARIABLE= INEQ

...NOTE..SAMPLE RANGE SET TO:      1,     25

R-SQUARE OF LRY      ON OTHER INDEPENDENT VARIABLES =   0.9995

R-SQUARE OF LRYSQ    ON OTHER INDEPENDENT VARIABLES =   0.9995

R-SQUARE OF HDI      ON OTHER INDEPENDENT VARIABLES =   0.0713

R-SQUARE OF CONSTANT ON OTHER INDEPENDENT VARIABLES =   0.0000

 

  R-SQUARE =   0.4422     R-SQUARE ADJUSTED =   0.3625

VARIANCE OF THE ESTIMATE-SIGMA**2 =  0.41772E-02

STANDARD ERROR OF THE ESTIMATE-SIGMA =  0.64631E-01

SUM OF SQUARED ERRORS-SSE=  0.87721E-01

MEAN OF DEPENDENT VARIABLE =  0.35308

LOG OF THE LIKELIHOOD FUNCTION =  35.1825

 

MODEL SELECTION TESTS - SEE JUDGE ET AL. (1985,P.242)

  AKAIKE (1969) FINAL PREDICTION ERROR - FPE =     0.48455E-02

     (FPE IS ALSO KNOWN AS AMEMIYA PREDICTION CRITERION - PC)

  AKAIKE (1973) INFORMATION CRITERION - LOG AIC =  -5.3325

  SCHWARZ (1978) CRITERION - LOG SC =              -5.1375

MODEL SELECTION TESTS - SEE RAMANATHAN (1998,P.165)

  CRAVEN-WAHBA (1979)

     GENERALIZED CROSS VALIDATION - GCV =          0.49728E-02

  HANNAN AND QUINN (1979) CRITERION =              0.51007E-02

  RICE (1984) CRITERION =                          0.51600E-02

  SHIBATA (1981) CRITERION =                       0.46317E-02

  SCHWARZ (1978) CRITERION - SC =                  0.58726E-02

  AKAIKE (1974) INFORMATION CRITERION - AIC =      0.48321E-02

 

                      ANALYSIS OF VARIANCE - FROM MEAN

                       SS         DF             MS                 F

REGRESSION       0.69541E-01      3.       0.23180E-01             5.549

ERROR            0.87721E-01     21.       0.41772E-02           P-VALUE

TOTAL            0.15726         24.       0.65526E-02             0.006

 

                      ANALYSIS OF VARIANCE - FROM ZERO

                       SS         DF             MS                 F

REGRESSION        3.1862          4.       0.79654               190.690

ERROR            0.87721E-01     21.       0.41772E-02           P-VALUE

TOTAL             3.2739         25.       0.13096                 0.000

 

 

VARIABLE   ESTIMATED  STANDARD   T-RATIO        PARTIAL STANDARDIZED ELASTICITY

   NAME    COEFFICIENT   ERROR      21 DF   P-VALUE CORR. COEFFICIENT  AT MEANS

LRY        1.5423      1.148       1.343     0.193 0.281     9.5742    51.3098

LRYSQ    -0.61512E-01 0.4807E-01  -1.280     0.215-0.269    -9.1236   -24.0797

HDI       0.12448E-02 0.3837E-03   3.244     0.004 0.578     0.5487     0.1171

CONSTANT  -9.3026      6.844      -1.359     0.188-0.284     0.0000   -26.3471

     OBS.   OBSERVED     PREDICTED   CALCULATED

      NO.    VALUE        VALUE       RESIDUAL

       1   0.40800      0.36666      0.41341E-01                I  *

       2   0.34900      0.37465     -0.25650E-01              * I

       3   0.35200      0.36877     -0.16769E-01               *I

       4   0.38200      0.38798     -0.59789E-02                *

       5   0.36000      0.37598     -0.15979E-01               *I

       6   0.32700      0.36672     -0.39717E-01             *  I

       7   0.40300      0.45219     -0.49186E-01            *   I

       8   0.36000      0.37463     -0.14626E-01               *I

       9   0.31500      0.34036     -0.25359E-01              * I

      10   0.51900      0.39561      0.12339                    I         *

      11   0.32500      0.34463     -0.19627E-01              * I

      12   0.59100      0.40929      0.18171                    I             *

      13   0.37800      0.47917     -0.10117            *       I

      14   0.31600      0.34639     -0.30388E-01              * I

      15   0.32600      0.31999      0.60071E-02                *

      16   0.45600      0.38128      0.74724E-01                I     *

      17   0.33100      0.29333      0.37669E-01                I  *

      18   0.25000      0.30123     -0.51233E-01            *   I

      19   0.25000      0.28178     -0.31782E-01              * I

      20   0.30500      0.28592      0.19084E-01                I*

      21   0.31600      0.30871      0.72924E-02                I*

      22   0.25800      0.26102     -0.30247E-02                *

      23   0.24700      0.27398     -0.26978E-01              * I

      24   0.40000      0.35466      0.45343E-01                I   *

      25   0.30300      0.38210     -0.79099E-01          *     I

 

DURBIN-WATSON = 2.4477    VON NEUMANN RATIO = 2.5497    RHO = -0.28994

RESIDUAL SUM =  0.15545E-12  RESIDUAL VARIANCE =  0.41772E-02

SUM OF ABSOLUTE ERRORS=   1.0731

R-SQUARE BETWEEN OBSERVED AND PREDICTED = 0.4422

RUNS TEST:   12 RUNS,    9 POS,    0 ZERO,   16 NEG  NORMAL STATISTIC = -0.2314

COEFFICIENT OF SKEWNESS =   1.3407 WITH STANDARD DEVIATION OF 0.4637

COEFFICIENT OF EXCESS KURTOSIS =   2.6959 WITH STANDARD DEVIATION OF 0.9017

 

JARQUE-BERA NORMALITY TEST- CHI-SQUARE(2 DF)=   10.5862 P-VALUE= 0.005

 

      GOODNESS OF FIT TEST FOR NORMALITY OF RESIDUALS - 10 GROUPS

OBSERVED  0.0  0.0  2.0  3.0 11.0  4.0  3.0  0.0  1.0  1.0

EXPECTED  0.2  0.7  2.0  4.0  5.6  5.6  4.0  2.0  0.7  0.2

CHI-SQUARE =   12.1449 WITH  4 DEGREES OF FREEDOM, P-VALUE= 0.016

|_DIAGNOS / HET

 

REQUIRED MEMORY IS PAR=       9 CURRENT PAR=    4000

DEPENDENT VARIABLE = INEQ            25 OBSERVATIONS

REGRESSION COEFFICIENTS

    1.54231745843     -0.615124099293E-01  0.124483191568E-02  -9.30264694552

 

 

HETEROSKEDASTICITY TESTS

                             CHI-SQUARE     D.F.   P-VALUE

                           TEST STATISTIC

E**2 ON YHAT:                      4.853     1    0.02760

E**2 ON YHAT**2:                   4.988     1    0.02553

E**2 ON LOG(YHAT**2):              4.590     1    0.03216

E**2 ON LAG(E**2) ARCH TEST:       0.233     1    0.62962

LOG(E**2) ON X (HARVEY) TEST:      7.387     3    0.06053

ABS(E) ON X (GLEJSER) TEST:       14.274     3    0.00255

E**2 ON X                 TEST:

           KOENKER(R2):             7.299     3    0.06296

           B-P-G (SSR) :           14.435     3    0.00237

 

...MATRIX ERROR...MAGNITUDE BELOW MACHINE PRECISION IN ROW    -5.

    THIS IS USUALLY CAUSED BY SINGULAR MATRIX.

...RESULTS MAY BE UNRELIABLE

E**2 ON X X**2    (WHITE) TEST:

           KOENKER(R2):        **********     6  *********

           B-P-G (SSR) :       **********     6  *********

 

...MATRIX ERROR...MAGNITUDE BELOW MACHINE PRECISION IN ROW    -5.

    THIS IS USUALLY CAUSED BY SINGULAR MATRIX.

...RESULTS MAY BE UNRELIABLE

E**2 ON X X**2 XX (WHITE) TEST:

           KOENKER(R2):        **********     9  *********

           B-P-G (SSR) :       **********     9  *********

 

 

|_OLS INEQ LRY LRYSQ HDI/ HETCOV

 

REQUIRED MEMORY IS PAR=       3 CURRENT PAR=    4000

  OLS ESTIMATION

        25 OBSERVATIONS     DEPENDENT VARIABLE= INEQ

...NOTE..SAMPLE RANGE SET TO:      1,     25

 

USING HETEROSKEDASTICITY-CONSISTENT COVARIANCE MATRIX

 

  R-SQUARE =   0.4422     R-SQUARE ADJUSTED =   0.3625

VARIANCE OF THE ESTIMATE-SIGMA**2 =  0.41772E-02

STANDARD ERROR OF THE ESTIMATE-SIGMA =  0.64631E-01

SUM OF SQUARED ERRORS-SSE=  0.87721E-01

MEAN OF DEPENDENT VARIABLE =  0.35308

LOG OF THE LIKELIHOOD FUNCTION =  35.1825

 

MODEL SELECTION TESTS - SEE JUDGE ET AL. (1985,P.242)

  AKAIKE (1969) FINAL PREDICTION ERROR - FPE =     0.48455E-02

     (FPE IS ALSO KNOWN AS AMEMIYA PREDICTION CRITERION - PC)

  AKAIKE (1973) INFORMATION CRITERION - LOG AIC =  -5.3325

  SCHWARZ (1978) CRITERION - LOG SC =              -5.1375

MODEL SELECTION TESTS - SEE RAMANATHAN (1998,P.165)

  CRAVEN-WAHBA (1979)

     GENERALIZED CROSS VALIDATION - GCV =          0.49728E-02

  HANNAN AND QUINN (1979) CRITERION =              0.51007E-02

  RICE (1984) CRITERION =                          0.51600E-02

  SHIBATA (1981) CRITERION =                       0.46317E-02

  SCHWARZ (1978) CRITERION - SC =                  0.58726E-02

  AKAIKE (1974) INFORMATION CRITERION - AIC =      0.48321E-02

 

                      ANALYSIS OF VARIANCE - FROM MEAN

                       SS         DF             MS                 F

REGRESSION       0.69541E-01      3.       0.23180E-01             5.549

ERROR            0.87721E-01     21.       0.41772E-02           P-VALUE

TOTAL            0.15726         24.       0.65526E-02             0.006

 

                      ANALYSIS OF VARIANCE - FROM ZERO

                       SS         DF             MS                 F

REGRESSION        3.1862          4.       0.79654               190.690

ERROR            0.87721E-01     21.       0.41772E-02           P-VALUE

TOTAL             3.2739         25.       0.13096                 0.000

 

 

VARIABLE   ESTIMATED  STANDARD   T-RATIO        PARTIAL STANDARDIZED ELASTICITY

   NAME    COEFFICIENT   ERROR      21 DF   P-VALUE CORR. COEFFICIENT  AT MEANS

LRY        1.5423     0.9596       1.607     0.123 0.331     9.5742    51.3098

LRYSQ    -0.61512E-01 0.4007E-01  -1.535     0.140-0.318    -9.1236   -24.0797

HDI       0.12448E-02 0.4678E-03   2.661     0.015 0.502     0.5487     0.1171

CONSTANT  -9.3026      5.735      -1.622     0.120-0.334     0.0000   -26.3471

 

DURBIN-WATSON = 2.4477    VON NEUMANN RATIO = 2.5497    RHO = -0.28994

RESIDUAL SUM =  0.16875E-12  RESIDUAL VARIANCE =  0.41772E-02

SUM OF ABSOLUTE ERRORS=   1.0731

R-SQUARE BETWEEN OBSERVED AND PREDICTED = 0.4422

RUNS TEST:   12 RUNS,    9 POS,    0 ZERO,   16 NEG  NORMAL STATISTIC = -0.2314

COEFFICIENT OF SKEWNESS =   1.3407 WITH STANDARD DEVIATION OF 0.4637

COEFFICIENT OF EXCESS KURTOSIS =   2.6959 WITH STANDARD DEVIATION OF 0.9017

 

JARQUE-BERA NORMALITY TEST- CHI-SQUARE(2 DF)=   10.5862 P-VALUE= 0.005

 

      GOODNESS OF FIT TEST FOR NORMALITY OF RESIDUALS - 10 GROUPS

OBSERVED  0.0  0.0  2.0  3.0 11.0  4.0  3.0  0.0  1.0  1.0

EXPECTED  0.2  0.7  2.0  4.0  5.6  5.6  4.0  2.0  0.7  0.2

CHI-SQUARE =   12.1449 WITH  4 DEGREES OF FREEDOM, P-VALUE= 0.016

|_Stop