ECON 350 - CLASSICAL
ECONOMICS - Gross Domestic
Product (GDP) calculations
Question Bank - Set 3
Liberty University
Question 1
Question
Suppose an economy produces only three goods: cars, computers, and smart-
phones. The quantities produced and their prices are as follows:
Good Quantity Produced Price per Unit
Cars 100
$
20,000
Computers 500
$
1,000
Smartphones 1,000
$
500
Calculate the Gross Domestic Product (GDP) using the production approach.
Solution
Step 1: Calculate the contribution of each good to GDP:
Cars: 100 ×$20,000 = $2,000,000
Computers: 500 ×$1,000 = $500,000
Smartphones: 1,000 ×$500 = $500,000
Step 2: Sum the contributions of all goods to find the GDP using the pro-
duction approach:
GDP = $2,000,000 + $500,000 + $500,000 = $3,000,000
Therefore, the Gross Domestic Product (GDP) of the economy using the
production approach is
$
3,000,000.
Question 2
Question
Suppose a hypothetical country’s economy consists of the following components:
Consumption:
$
800 billion
Investment:
$
200 billion
Government spending:
$
300 billion
Exports:
$
150 billion
Imports:
$
100 billion
Calculate the Gross Domestic Product (GDP) of the country using the expen-
diture approach.
Solution
Step 1: Calculate the Net Exports
Net Exports = Exports - Imports
Net Exports = $150 billion −$100 billion = $50 billion
Step 2: Use the Expenditure Approach formula to calculate GDP
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = $800 billion + $200 billion + $300 billion + $50 billion = $1,350 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
1,350 bil-
lion.
Question 3
Question
In a hypothetical country, the following data are given for a particular year:
- Consumption expenditures: 110 billion USD - Investment expenditures: 40
billion USD - Government expenditures: 30 billion USD - Exports: 25 billion
USD - Imports: 20 billion USD Calculate the Gross Domestic Product (GDP)
of the country for that year.
2
Solution
Step 1: The formula for calculating GDP is:
GDP =C+I+G+ (X−M)
where: - Cis consumption expenditures - Iis investment expenditures - Gis
government expenditures - Xis exports - Mis imports
Step 2: Substitute the given values into the formula:
GDP = 110 + 40 + 30 + (25 −20)
Step 3: Calculate the values inside the parentheses:
GDP = 110 + 40 + 30 + 5
Step 4: Add the values to find the GDP:
GDP = 185 billion USD
Therefore, the Gross Domestic Product (GDP) of the country for that year
is 185 billion USD.
Question 4
Question
Suppose a country has the following data:
Consumption expenditure:
$
500 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
150 billion
Net exports:
$
50 billion
Depreciation:
$
30 billion
Indirect taxes:
$
40 billion
Subsidies:
$
20 billion
Calculate the Gross Domestic Product (GDP) using the expenditure approach.
3
Solution
Step 1: Calculate the Gross Domestic Product (GDP) using the expenditure
approach formula:
GDP = Consumption + Investment + Government Spending + Net Exports
Step 2: Plug in the given values to calculate GDP:
GDP = 500 + 200 + 150 + 50
GDP = 900 billion
Step 3: Adjust the GDP calculation for depreciation:
Adjusted GDP = GDP + Depreciation
Adjusted GDP = 900 + 30
Adjusted GDP = 930 billion
Step 4: Adjust the Adjusted GDP calculation for indirect taxes and subsi-
dies:
GDP = Adjusted GDP −Indirect Taxes + Subsidies
GDP = 930 −40 + 20
GDP = 910 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
910 billion.
Question 5
Question
Suppose a country’s economy is described by the following table:
Category Value (in billions) Contribution to GDP
Consumption 200
Investment 50
Government Spending 80
Exports 30
Imports 40
Taxes 60
Calculate the Gross Domestic Product (GDP) of the country.
4
Solution
Step 1: First, we need to calculate the net exports, which is the difference
between exports and imports.
Net Exports = Exports −Imports = 30 −40 = −10 billion
Step 2: Next, we can calculate the GDP using the expenditure approach
formula:
GDP = Consumption + Investment + Government Spending + Net Exports
Step 3: Substitute the given values into the formula and calculate:
GDP = 200 + 50 + 80 + (−10)
= 320 billion
Therefore, the Gross Domestic Product (GDP) of the country is 320 billion.
Question 6
Question
Consider an economy with the following data:
Item Quantity Price (
$
)
Consumption (C) 100 10
Investment (I) 50 20
Government spending (G) 30 15
Exports (X) 40 25
Imports (M) 35 18
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
Solution
Step 1: Calculate the components of GDP:
Consumption (C): C= 100 ×10 = 1000
Investment (I): I= 50 ×20 = 1000
Government spending (G): G= 30 ×15 = 450
Exports (X): X= 40 ×25 = 1000
Imports (M): M= 35 ×18 = 630
5
Step 2: Calculate the GDP using the expenditure approach:
GDP =C+I+G+ (X−M)
= 1000 + 1000 + 450 + (1000 −630)
= 1000 + 1000 + 450 + 370
= 2820
Therefore, the Gross Domestic Product (GDP) of the economy using the
expenditure approach is
$
2820.
Question 7
Question
Suppose a country has the following information: - Consumption expenditure:
$
500 billion - Investment expenditure:
$
200 billion - Government expenditure:
$
300 billion - Exports:
$
150 billion - Imports:
$
100 billion Calculate the Gross
Domestic Product (GDP) using the expenditure approach.
Solution
To calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach, we sum up the following components: - Consumption expenditure (C)
- Investment expenditure (I) - Government expenditure (G) - Net exports (Ex-
ports - Imports)
Step 1: Calculate the sum of C, I, and G.
C+I+G= $500 billion + $200 billion + $300 billion
C+I+G= $1000 billion
Step 2: Calculate Net Exports.
Net Exports =Exports −Imports
Net Exports = $150 billion −$100 billion
Net Exports = $50 billion
Step 3: Calculate GDP.
GDP =C+I+G+Net Exports
GDP = $1000 billion + $50 billion
GDP = $1050 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
1050 bil-
lion.
6
Question 8
Question
Suppose a country’s economy can be described by the following data:
Consumption:
$
800 billion
Investment:
$
200 billion
Government purchases:
$
300 billion
Exports:
$
150 billion
Imports:
$
100 billion
Net income earned abroad:
$
50 billion
Calculate the Gross Domestic Product (GDP) for this country.
Solution
Step 1: Calculate Gross Domestic Product using the expenditure approach.
GDP = Consumption + Investment + Government Purchases + Exports −Imports
GDP = $800 billion + $200 billion + $300 billion + $150 billion −$100 billion
GDP = $1350 billion
Step 2: Include the net income earned abroad to the GDP.
GDP =GDP + Net Income Earned Abroad
GDP = $1350 billion + $50 billion
GDP = $1400 billion
Therefore, the Gross Domestic Product (GDP) for this country is
$
1400
billion.
Question 9
Question
Suppose a country’s economy has the following components:
Consumption =
$
800 billion
Investment =
$
200 billion
Government spending =
$
300 billion
Net exports =
$
50 billion
Calculate the Gross Domestic Product (GDP) of the country using the ex-
penditure approach.
7
Solution
Step 1: Calculate the GDP using the expenditure approach formula:
GDP = Consumption + Investment + Government spending + Net exports
Step 2: Substitute the given values into the formula:
GDP = $800 billion + $200 billion + $300 billion + $50 billion
Step 3: Perform the calculations:
GDP = $800 billion + $200 billion + $300 billion + $50 billion = $1350 billion
Therefore, the Gross Domestic Product (GDP) of the country using the
expenditure approach is
$
1350 billion.
Question 10
Question
Suppose a country’s economy produces the following in a year: -
$
200 million
worth of cars -
$
150 million worth of computers -
$
100 million worth of clothing
-
$
50 million worth of furniture -
$
25 million worth of food
There are no intermediate goods in this economy. Calculate the country’s
Gross Domestic Product (GDP) using the Expenditure Approach.
Solution
Step 1: The Expenditure Approach to calculating GDP can be broken down into
four components: - Consumption (C) - Investment (I) - Government Spending
(G) - Net Exports (NX)
Step 2: To calculate Consumption (C), sum up the values of all final goods
and services produced: - Cars:
$
200 million - Computers:
$
150 million -
Clothing:
$
100 million - Furniture:
$
50 million - Food:
$
25 million C=
200 + 150 + 100 + 50 + 25 = $525 million
Step 3: Calculate Investment (I) by summing up all business expenditures
on capital goods: I= 0 (since the information on business expenditures is not
provided in this question)
Step 4: Government Spending (G) is given as 0 in this scenario, so G= 0
Step 5: Calculate Net Exports (NX) by subtracting imports from exports.
Since no information is provided regarding imports or exports, let’s assume they
are both zero: NX =Exports −Imports = 0 −0=0
Step 6: Now, we can calculate the country’s Gross Domestic Product (GDP)
using the formula: GDP =C+I+G+NX GDP = 525 + 0 + 0 + 0 = $525
million
Therefore, the country’s Gross Domestic Product (GDP) using the Expen-
diture Approach is
$
525 million.
8
Question 11
Question
Suppose a country’s economy can be represented by the following table:
Item Quantity Produced Price per Unit(
$
)
Apples 500 2
Bananas 300 1.5
Oranges 400 1
Pears 600 2.5
Calculate the Gross Domestic Product (GDP) of this country using the ex-
penditure approach.
Solution
Step 1: Calculate the total value of each item produced.
Apples: 500 ×$2 = $1000
Bananas: 300 ×$1.5 = $450
Oranges: 400 ×$1 = $400
Pears: 600 ×$2.5 = $1500
Step 2: Add up the total values to find the country’s GDP.
GDP = $1000 + $450 + $400 + $1500
= $3350
Therefore, the Gross Domestic Product of this country using the expenditure
approach is
$
3350.
Question 12
Question
Suppose a country has the following data:
Consumption =
$
500 billion
Investment =
$
200 billion
Government spending =
$
150 billion
Exports =
$
100 billion
Imports =
$
80 billion
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
9
Solution
Step 1: Calculate Net Exports.
Net Exports = Exports −Imports = $100 billion −$80 billion = $20 billion
Step 2: Use the Expenditure Approach formula to calculate GDP.
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = $500 billion + $200 billion + $150 billion + $20 billion
GDP = $500 billion + $200 billion + $150 billion + $20 billion = $870 billion
Therefore, the Gross Domestic Product (GDP) of the country using the
expenditure approach is
$
870 billion.
Question 13
Question
Suppose a country produces only two goods: computers and cars. The quantities
produced and the prices for each goods are as follows:
Good Quantity Produced Price (
$
)
Computers 100 800
Cars 50 20000
Calculate the Gross Domestic Product (GDP) of the country using the pro-
duction approach.
Solution
Step 1: Calculate the value of production for each good by multiplying quantity
produced by the price:
Value of Computers produced: 100 ×800 = 80000 dollars
Value of Cars produced: 50 ×20000 = 1000000 dollars
Step 2: Calculate the Gross Domestic Product (GDP) of the country by
summing the value of production for each good:
GDP = Value of Computers + Value of Cars
= 80000 + 1000000
= 1080000
Therefore, the Gross Domestic Product (GDP) of the country using the
production approach is
$
1,080,000.
10
Question 14
Question
Calculate the Gross Domestic Product (GDP) using the following information:
Consumption expenditure: 300 billion
Investment: 150 billion
Government expenditure: 100 billion
Net exports: 50 billion
Solution
Step 1: Calculate the GDP using the expenditure approach.
GDP = Consumption expenditure + Investment + Government expenditure + Net exports
GDP = 300 + 150 + 100 + 50
GDP = 600 billion
Therefore, the GDP using the expenditure approach is 600 billion.
Question 15
Question
Calculate the Gross Domestic Product (GDP) using the following information
for an economy:
Consumption expenditure:
$
800 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
300 billion
Exports:
$
150 billion
Imports:
$
100 billion
Solution
Step 1: Calculate the Net Exports.
Net Exports = Exports −Imports
= $150 billion −$100 billion
= $50 billion
11
Step 2: Use the expenditure method formula to calculate GDP.
GDP = Consumption + Investment + Government Spending + Net Exports
= $800 billion + $200 billion + $300 billion + $50 billion
= $1,350 billion
Therefore, the Gross Domestic Product (GDP) of the economy is
$
1,350
billion.
Question 16
Question
The following table shows the contributions to GDP for a hypothetical country:
Component Contribution to GDP (
$
billions)
Consumption 800
Investment 200
Government spending 300
Exports 150
Imports 100
Calculate the Gross Domestic Product (GDP) for this country.
Solution
Step 1: Calculate the GDP using the Expenditure Approach formula:
GDP = Consumption+Investment+Government spending+(Exports−Imports)
Step 2: Plug in the given values:
GDP = 800 + 200 + 300 + (150 −100)
Step 3: Perform the arithmetic operation inside the parentheses:
GDP = 800 + 200 + 300 + 50
Step 4: Calculate the sum:
GDP = 1350
Therefore, the Gross Domestic Product (GDP) for the country is
$
1350
billion.
12
Question 17
Question
Given the following data, calculate the Gross Domestic Product (GDP) using
the expenditure approach:
Component Amount (in billions)
Consumption 500
Investment 150
Government spending 100
Exports 50
Imports 30
Solution
Step 1: Calculate Net Exports
Net Exports = Exports −Imports
Net Exports = 50 −30
Net Exports = 20 billion
Step 2: Calculate GDP using the Expenditure Approach
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = 500 + 150 + 100 + 20
GDP = 770 billion
Therefore, the Gross Domestic Product (GDP) calculated using the expen-
diture approach is 770 billion.
Question 18
Question
Suppose a country’s GDP in a particular year is
$
10 trillion. Over the same year,
its consumption expenditures amount to
$
6 trillion, its investment expenditures
amount to
$
2 trillion, and its government purchases amount to
$
2.5 trillion.
Calculate the country’s net exports in this year.
Solution
Step 1: Recall the formula for GDP:
GDP =C+I+G+NX
13
where: - Crepresents consumption expenditures, - Irepresents investment
expenditures, - Grepresents government purchases, and - N X represents net
exports.
Step 2: Given that: - GDP =
$
10 trillion, - C= $6 trillion, - I= $2 trillion,
and - G= $2.5 trillion,
we can substitute these values into the formula:
$10 trillion = $6 trillion + $2 trillion + $2.5 trillion + NX
Step 3: Simplify the equation:
NX = $10 trillion −$6 trillion −$2 trillion −$2.5 trillion
NX = $10 trillion −$10.5 trillion
NX =−$0.5 trillion
Step 4: Since net exports cannot be negative, this implies that the country
has a trade deficit of
$
0.5 trillion in the given year.
Question 19
Question
Suppose a country’s economy can be simplified to the following:
Consumption: C= $800 billion
Investment: I= $200 billion
Government spending: G= $300 billion
Exports: X= $100 billion
Imports: M= $150 billion
Calculate the country’s Gross Domestic Product (GDP) using the expenditures
method.
Solution
Step 1: Start with the expenditures method equation for calculating GDP:
GDP =C+I+G+ (X−M)
Step 2: Substitute in the given values:
GDP = $800 + $200 + $300 + ($100 −$150)
Step 3: Calculate the net exports, X−M:
X−M= $100 −$150 = −$50
14
Step 4: Substitute the net exports value back into the GDP equation:
GDP = $800 + $200 + $300 −$50
Step 5: Perform the arithmetic to find the GDP:
GDP = $1,250 −$50
GDP = $1,200 billion
Therefore, the country’s Gross Domestic Product (GDP) using the expen-
ditures method is
$
1,200 billion.
Question 20
Question
Suppose a country’s economy can be described by the following information: -
Consumption:
$
800 billion - Investment:
$
200 billion - Government spending:
$
300 billion - Exports:
$
150 billion - Imports:
$
100 billion Calculate the Gross
Domestic Product (GDP) of the country based on the given data.
Solution
Step 1: Calculate the Net Exports (NX) by subtracting imports from exports.
NX = Exports −Imports = $150 billion −$100 billion = $50 billion
Step 2: Calculate the GDP using the formula:
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = $800 billion + $200 billion + $300 billion + $50 billion = $1350 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
1350 bil-
lion.
Question 21
Question
Suppose a country has the following information about its economy: - Con-
sumption: 3,500billion −Investment :1,000 billion - Government spending:
800billion −Exports :600 billion - Imports: 400billion
Calculate the Gross Domestic Product (GDP) of the country using the ex-
penditure approach.
15
Solution
Step 1: Calculate the Net Exports (Exports - Imports)
Net Exports =Exports −Imports =
600 billion - 400 billion =200 billion
Step 2: Use the formula for GDP using the expenditure approach:
GDP =Consumption +Investment +Government Spending +Net Exports
GDP =
3,500 billion + 1,000 billion+800 billion + 200 billion
Step 3: Calculate the Gross Domestic Product (GDP):
GDP =
3,500 billion + 1,000 billion+800 billion + 200 billion =5,500 billion
Therefore, the Gross Domestic Product (GDP) of the country is 5,500billion.
Question 22
Question
Suppose a country’s nominal GDP is
$
15 trillion and the GDP deflator is 120.
If the population of the country is 250 million, calculate the country’s real GDP
per capita.
Solution
Step 1: Calculate the real GDP using the GDP deflator formula:
Real GDP = Nominal GDP
GDP Deflator =15 trillion
120 = $125 billion
Step 2: Calculate the real GDP per capita by dividing the real GDP by the
population:
Real GDP per capita = Real GDP
Population =$125 billion
250 million = $500
Therefore, the country’s real GDP per capita is
$
500.
16
Question 23
Question
Assume an economy produces only three goods: apples, oranges, and bananas.
The table below shows the quantities produced and their respective prices for
the base year and the current year:
Quantity (Base Year) Price (Base Year) Quantity (Current Year)
Apples 100
$
1.50 120
Oranges 80
$
2.00 100
Bananas 50
$
1.25 60
Calculate the GDP deflator for the current year, using the base year as the
reference year.
Solution
Step 1: Calculate the nominal GDP for the current year by summing up the
total value of production at current year prices:
Nominal GDP (Current Year) = (120 ×$1.50) + (100 ×$2.00) + (60 ×$1.25)
Step 2: Calculate the nominal GDP for the base year using base year prices:
Nominal GDP (Base Year) = (100 ×$1.50) + (80 ×$2.00) + (50 ×$1.25)
Step 3: Calculate the GDP deflator using the formula:
GDP Deflator = Nominal GDP (Current Year)
Nominal GDP (Base Year) ×100
Step 4: Substitute the calculated values into the formula and solve for the
GDP deflator.
Question 24
Question
In a hypothetical country, the following data is given for a year:
Consumption expenditure:
$
800 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
300 billion
Net exports:
$
50 billion
Calculate the Gross Domestic Product (GDP) of the country for the year.
17
Solution
Step 1: Calculate the GDP using the expenditure approach, where GDP is the
sum of consumption expenditure, investment expenditure, government expen-
diture, and net exports.
GDP = Consumption + Investment + Government + Net Exports
GDP = $800 billion + $200 billion + $300 billion + $50 billion
GDP = $1,350 billion
Therefore, the Gross Domestic Product (GDP) of the country for the year
is
$
1,350 billion.
Question 25
Question
In a country, the following data represents the components of GDP for the year
2020: - Consumption = 2.5 trillion - Investment = 1.2 trillion - Government
spending = 0.8 trillion - Exports = 0.4 trillion - Imports = 0.3 trillion
Calculate the Gross Domestic Product (GDP) for the year 2020 in this coun-
try.
Solution
Step 1: The GDP can be calculated using the formula:
GDP = Consumption+Investment+Government spending+(Exports−Imports)
Step 2: Substituting the given values:
GDP = 2.5+1.2+0.8 + (0.4−0.3)
Step 3: Calculating the expression inside the parentheses:
GDP = 2.5+1.2+0.8+0.1
Step 4: Adding all the components together:
GDP = 4.6+0.1
Step 5: Therefore, the Gross Domestic Product (GDP) for the year 2020 in
this country is 4.7 trillion.
18
Question 26
Question
Suppose a country’s GDP for the year 2020 is
$
12 trillion. The components
of GDP are as follows: Consumption (C) =
$
8 trillion, Investment (I) =
$
2
trillion, Government spending (G) =
$
1.5 trillion, and Net Exports (NX) =
-
$
0.5 trillion. Calculate the value of Net Domestic Product (NDP) for this
country in 2020.
Solution
Step 1: Recall the formula for GDP:
GDP =C+I+G+NX
Step 2: Substitute the given values into the formula:
12 = 8 + 2 + 1.5−0.5
Step 3: Calculate the value of GDP:
12 = 11
Step 4: Identify the error in calculations. The correct calculation should be:
12 = 8 + 2 + 1.5+(−0.5)
Step 5: Recalculate the value of GDP:
12 = 11
Step 6: Realize that there was an error in the given values for the components
of GDP. Net Exports (N X) should be considered as a negative value when
calculating GDP.
Step 7: Correct the value of NX and recalculate GDP:
12 = 8 + 2 + 1.5−0.5
Step 8: Calculate the corrected value of GDP:
12 = 12
Step 9: The corrected value of GDP is
$
12 trillion.
Step 10: Recall the formula for Net Domestic Product (NDP):
NDP =GDP −Depreciation
Step 11: Since no information is given about depreciation, we can assume it
to be zero for simplicity.
Step 12: Calculate the Net Domestic Product (NDP):
NDP = 12 −0 = 12
Answer: The Net Domestic Product (NDP) for the country in 2020 is
$
12
trillion.
19
Question 27
Question
Let’s consider a hypothetical country with the following data for a given year:
consumption expenditure = 200 billion, investment expenditure = 100 billion,
government expenditure = 50 billion, exports = 80 billion, imports = 60 billion,
and depreciation = 20 billion. Calculate the Gross Domestic Product (GDP)
for this country for the year.
Solution
Step 1: Calculate the Gross Domestic Product (GDP) using the expenditure
approach formula:
GDP =C+I+G+ (X−M)
where: - Cis consumption expenditure, - Iis investment expenditure, - Gis
government expenditure, - Xis exports, and - Mis imports.
Step 2: Substituting the given values into the formula, we get:
GDP = 200 + 100 + 50 + (80 −60)
GDP = 200 + 100 + 50 + 20
GDP = 350 + 20
GDP = 370 billion
Therefore, the Gross Domestic Product (GDP) for the country for the given
year is 370 billion.
Question 28
Question
In a hypothetical country, the values of consumption (C), investment (I), gov-
ernment purchases (G), exports (X), and imports (M) in billions of dollars are
given as follows: C= 400, I= 200, G= 150, X= 100, M= 120. Calculate the
Gross Domestic Product (GDP) of this country using the expenditure approach.
Solution
To calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach, we sum up the components of expenditure: consumption (C), invest-
ment (I), government purchases (G), exports (X), and subtract imports (M).
The formula for GDP is given by
GDP =C+I+G+ (X−M)
20
Step 1: Substitute the given values into the formula.
GDP = 400 + 200 + 150 + (100 −120)
Step 2: Perform the arithmetic calculations.
GDP = 400 + 200 + 150 + (100 −120)
GDP = 400 + 200 + 150 + (−20)
GDP = 730
Therefore, the Gross Domestic Product (GDP) of the hypothetical country
is 730 billion dollars.
Question 29
Question
Consider a country with the following economic data for the year 2021:
Consumption expenditure:
$
800 billion
Investment expenditure:
$
300 billion
Government expenditure:
$
200 billion
Exports:
$
150 billion
Imports:
$
120 billion
Calculate the Gross Domestic Product (GDP) for this country in 2021.
Solution
Step 1: Calculate the Gross Domestic Product (GDP) using the expenditure
approach.
GDP =C+I+G+ (X−M)
= 800 + 300 + 200 + (150 −120)
= 800 + 300 + 200 + 30
= 1330 billion
Therefore, the Gross Domestic Product (GDP) for the country in 2021 is
$
1330 billion.
21
Question 30
Question
Suppose a country’s nominal GDP is
$
700 billion and its price index is 120. If
the base year’s GDP was
$
600 billion, what is the country’s real GDP?
Solution
Step 1: Calculate the GDP deflator using the formula:
GDP Deflator = Nominal GDP
Real GDP ×100
Given that the nominal GDP is
$
700 billion, the base year’s GDP is
$
600 billion,
and the GDP deflator is 120, we can rearrange the formula to solve for the real
GDP:
120 = 700
Real GDP×100
Step 2: Solve for the real GDP:
120
100 =700
Real GDP
6
5=7
Real GDP
Real GDP = 5×7
6= $583.33 billion
Therefore, the country’s real GDP is
$
583.33 billion.
Question 31
Question
Assume an economy produces only three goods: apples, bananas, and oranges.
The quantities produced and their respective prices are as follows:
Good Quantity Produced Price per Unit (
$
)
Apples 100 1
Bananas 50 2
Oranges 75 1.5
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
22
Solution
Step 1: Calculate the total expenditure on each good:
Expenditure on Apples = Quantity of Apples ×Price per Apple
= 100 ×1
= 100 dollars
Expenditure on Bananas = Quantity of Bananas ×Price per Banana
= 50 ×2
= 100 dollars
Expenditure on Oranges = Quantity of Oranges ×Price per Orange
= 75 ×1.5
= 112.5 dollars
Step 2: Calculate the GDP using the expenditure approach:
GDP = Expenditure on Apples + Expenditure on Bananas + Expenditure on Oranges
= 100 + 100 + 112.5
= 312.5 dollars
Therefore, the Gross Domestic Product (GDP) of the economy is
$
312.5.
Question 32
Question
Suppose a country’s Gross Domestic Product (GDP) for a given year is calcu-
lated using the expenditure approach. The following data is provided:
Personal consumption expenditures:
$
500 billion
Gross private domestic investment:
$
200 billion
Government purchases:
$
100 billion
Net exports:
$
50 billion
Calculate the country’s GDP for the year using the expenditure approach.
23
Solution
Step 1: Calculate the total expenditure
Total expenditure = Personal consumption expenditures + Gross private domestic investment + Government purchases + Net exports
= $500 billion + $200 billion + $100 billion + $50 billion
= $850 billion
Therefore, the total expenditure for the country for the year is
$
850 billion.
Step 2: Calculate the GDP
GDP = Total expenditure −Net exports
= $850 billion −$50 billion
= $800 billion
Thus, the Gross Domestic Product (GDP) for the country for the given year,
calculated using the expenditure approach, is
$
800 billion.
Question 33
Question
Calculate the Gross Domestic Product (GDP) using the expenditure approach
for a hypothetical economy with the following information:
Consumption expenditure:
$
500 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
150 billion
Exports:
$
100 billion
Imports:
$
80 billion
Solution
Step 1: Calculate Net Exports
Net Exports = Exports −Imports
Net Exports = $100 billion −$80 billion = $20 billion
Step 2: Calculate GDP using the expenditure approach
GDP = Consumption + Investment + Government spending + Net Exports
GDP = $500 billion + $200 billion + $150 billion + $20 billion
GDP = $870 billion
Therefore, the Gross Domestic Product (GDP) for the hypothetical economy
is
$
870 billion.
24
Question 34
Question
Assume a simple economy produces only three goods: apples, oranges, and
bananas. The quantities produced and their respective prices are as follows:
Good Quantity Produced Price per Unit (
$
)
Apples 500 1
Oranges 300 2
Bananas 400 3
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
Solution
Step 1: Calculate the total spending on each good by multiplying the quantity
produced by the price per unit.
Spending on Apples = 500 ×1 = 500
Spending on Oranges = 300 ×2 = 600
Spending on Bananas = 400 ×3 = 1200
Step 2: Calculate the Gross Domestic Product (GDP) by summing up the
total spending on all goods.
GDP = Spending on Apples + Spending on Oranges + Spending on Bananas
= 500 + 600 + 1200
= 2300
Therefore, the Gross Domestic Product (GDP) of the economy using the
expenditure approach is
$
2300.
Question 35
Question
Consider the following data on a hypothetical economy:
Consumption expenditure:
$
500 billion
Investment:
$
200 billion
Government expenditure:
$
150 billion
Exports:
$
100 billion
Imports:
$
80 billion
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
25
Question 2
Question
Suppose a hypothetical country’s economy consists of the following components:
Consumption:
$
800 billion
Investment:
$
200 billion
Government spending:
$
300 billion
Exports:
$
150 billion
Imports:
$
100 billion
Calculate the Gross Domestic Product (GDP) of the country using the expen-
diture approach.
Solution
Step 1: Calculate the Net Exports
Net Exports = Exports - Imports
Net Exports = $150 billion −$100 billion = $50 billion
Step 2: Use the Expenditure Approach formula to calculate GDP
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = $800 billion + $200 billion + $300 billion + $50 billion = $1,350 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
1,350 bil-
lion.
Question 3
Question
In a hypothetical country, the following data are given for a particular year:
- Consumption expenditures: 110 billion USD - Investment expenditures: 40
billion USD - Government expenditures: 30 billion USD - Exports: 25 billion
USD - Imports: 20 billion USD Calculate the Gross Domestic Product (GDP)
of the country for that year.
2
Solution
Step 1: The formula for calculating GDP is:
GDP =C+I+G+ (X−M)
where: - Cis consumption expenditures - Iis investment expenditures - Gis
government expenditures - Xis exports - Mis imports
Step 2: Substitute the given values into the formula:
GDP = 110 + 40 + 30 + (25 −20)
Step 3: Calculate the values inside the parentheses:
GDP = 110 + 40 + 30 + 5
Step 4: Add the values to find the GDP:
GDP = 185 billion USD
Therefore, the Gross Domestic Product (GDP) of the country for that year
is 185 billion USD.
Question 4
Question
Suppose a country has the following data:
Consumption expenditure:
$
500 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
150 billion
Net exports:
$
50 billion
Depreciation:
$
30 billion
Indirect taxes:
$
40 billion
Subsidies:
$
20 billion
Calculate the Gross Domestic Product (GDP) using the expenditure approach.
3
Solution
Step 1: Calculate the Gross Domestic Product (GDP) using the expenditure
approach formula:
GDP = Consumption + Investment + Government Spending + Net Exports
Step 2: Plug in the given values to calculate GDP:
GDP = 500 + 200 + 150 + 50
GDP = 900 billion
Step 3: Adjust the GDP calculation for depreciation:
Adjusted GDP = GDP + Depreciation
Adjusted GDP = 900 + 30
Adjusted GDP = 930 billion
Step 4: Adjust the Adjusted GDP calculation for indirect taxes and subsi-
dies:
GDP = Adjusted GDP −Indirect Taxes + Subsidies
GDP = 930 −40 + 20
GDP = 910 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
910 billion.
Question 5
Question
Suppose a country’s economy is described by the following table:
Category Value (in billions) Contribution to GDP
Consumption 200
Investment 50
Government Spending 80
Exports 30
Imports 40
Taxes 60
Calculate the Gross Domestic Product (GDP) of the country.
4
Solution
Step 1: First, we need to calculate the net exports, which is the difference
between exports and imports.
Net Exports = Exports −Imports = 30 −40 = −10 billion
Step 2: Next, we can calculate the GDP using the expenditure approach
formula:
GDP = Consumption + Investment + Government Spending + Net Exports
Step 3: Substitute the given values into the formula and calculate:
GDP = 200 + 50 + 80 + (−10)
= 320 billion
Therefore, the Gross Domestic Product (GDP) of the country is 320 billion.
Question 6
Question
Consider an economy with the following data:
Item Quantity Price (
$
)
Consumption (C) 100 10
Investment (I) 50 20
Government spending (G) 30 15
Exports (X) 40 25
Imports (M) 35 18
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
Solution
Step 1: Calculate the components of GDP:
Consumption (C): C= 100 ×10 = 1000
Investment (I): I= 50 ×20 = 1000
Government spending (G): G= 30 ×15 = 450
Exports (X): X= 40 ×25 = 1000
Imports (M): M= 35 ×18 = 630
5
Step 2: Calculate the GDP using the expenditure approach:
GDP =C+I+G+ (X−M)
= 1000 + 1000 + 450 + (1000 −630)
= 1000 + 1000 + 450 + 370
= 2820
Therefore, the Gross Domestic Product (GDP) of the economy using the
expenditure approach is
$
2820.
Question 7
Question
Suppose a country has the following information: - Consumption expenditure:
$
500 billion - Investment expenditure:
$
200 billion - Government expenditure:
$
300 billion - Exports:
$
150 billion - Imports:
$
100 billion Calculate the Gross
Domestic Product (GDP) using the expenditure approach.
Solution
To calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach, we sum up the following components: - Consumption expenditure (C)
- Investment expenditure (I) - Government expenditure (G) - Net exports (Ex-
ports - Imports)
Step 1: Calculate the sum of C, I, and G.
C+I+G= $500 billion + $200 billion + $300 billion
C+I+G= $1000 billion
Step 2: Calculate Net Exports.
Net Exports =Exports −Imports
Net Exports = $150 billion −$100 billion
Net Exports = $50 billion
Step 3: Calculate GDP.
GDP =C+I+G+Net Exports
GDP = $1000 billion + $50 billion
GDP = $1050 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
1050 bil-
lion.
6
Question 8
Question
Suppose a country’s economy can be described by the following data:
Consumption:
$
800 billion
Investment:
$
200 billion
Government purchases:
$
300 billion
Exports:
$
150 billion
Imports:
$
100 billion
Net income earned abroad:
$
50 billion
Calculate the Gross Domestic Product (GDP) for this country.
Solution
Step 1: Calculate Gross Domestic Product using the expenditure approach.
GDP = Consumption + Investment + Government Purchases + Exports −Imports
GDP = $800 billion + $200 billion + $300 billion + $150 billion −$100 billion
GDP = $1350 billion
Step 2: Include the net income earned abroad to the GDP.
GDP =GDP + Net Income Earned Abroad
GDP = $1350 billion + $50 billion
GDP = $1400 billion
Therefore, the Gross Domestic Product (GDP) for this country is
$
1400
billion.
Question 9
Question
Suppose a country’s economy has the following components:
Consumption =
$
800 billion
Investment =
$
200 billion
Government spending =
$
300 billion
Net exports =
$
50 billion
Calculate the Gross Domestic Product (GDP) of the country using the ex-
penditure approach.
7
Solution
Step 1: Calculate the GDP using the expenditure approach formula:
GDP = Consumption + Investment + Government spending + Net exports
Step 2: Substitute the given values into the formula:
GDP = $800 billion + $200 billion + $300 billion + $50 billion
Step 3: Perform the calculations:
GDP = $800 billion + $200 billion + $300 billion + $50 billion = $1350 billion
Therefore, the Gross Domestic Product (GDP) of the country using the
expenditure approach is
$
1350 billion.
Question 10
Question
Suppose a country’s economy produces the following in a year: -
$
200 million
worth of cars -
$
150 million worth of computers -
$
100 million worth of clothing
-
$
50 million worth of furniture -
$
25 million worth of food
There are no intermediate goods in this economy. Calculate the country’s
Gross Domestic Product (GDP) using the Expenditure Approach.
Solution
Step 1: The Expenditure Approach to calculating GDP can be broken down into
four components: - Consumption (C) - Investment (I) - Government Spending
(G) - Net Exports (NX)
Step 2: To calculate Consumption (C), sum up the values of all final goods
and services produced: - Cars:
$
200 million - Computers:
$
150 million -
Clothing:
$
100 million - Furniture:
$
50 million - Food:
$
25 million C=
200 + 150 + 100 + 50 + 25 = $525 million
Step 3: Calculate Investment (I) by summing up all business expenditures
on capital goods: I= 0 (since the information on business expenditures is not
provided in this question)
Step 4: Government Spending (G) is given as 0 in this scenario, so G= 0
Step 5: Calculate Net Exports (NX) by subtracting imports from exports.
Since no information is provided regarding imports or exports, let’s assume they
are both zero: NX =Exports −Imports = 0 −0=0
Step 6: Now, we can calculate the country’s Gross Domestic Product (GDP)
using the formula: GDP =C+I+G+NX GDP = 525 + 0 + 0 + 0 = $525
million
Therefore, the country’s Gross Domestic Product (GDP) using the Expen-
diture Approach is
$
525 million.
8
Question 11
Question
Suppose a country’s economy can be represented by the following table:
Item Quantity Produced Price per Unit(
$
)
Apples 500 2
Bananas 300 1.5
Oranges 400 1
Pears 600 2.5
Calculate the Gross Domestic Product (GDP) of this country using the ex-
penditure approach.
Solution
Step 1: Calculate the total value of each item produced.
Apples: 500 ×$2 = $1000
Bananas: 300 ×$1.5 = $450
Oranges: 400 ×$1 = $400
Pears: 600 ×$2.5 = $1500
Step 2: Add up the total values to find the country’s GDP.
GDP = $1000 + $450 + $400 + $1500
= $3350
Therefore, the Gross Domestic Product of this country using the expenditure
approach is
$
3350.
Question 12
Question
Suppose a country has the following data:
Consumption =
$
500 billion
Investment =
$
200 billion
Government spending =
$
150 billion
Exports =
$
100 billion
Imports =
$
80 billion
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
9
Solution
Step 1: Calculate Net Exports.
Net Exports = Exports −Imports = $100 billion −$80 billion = $20 billion
Step 2: Use the Expenditure Approach formula to calculate GDP.
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = $500 billion + $200 billion + $150 billion + $20 billion
GDP = $500 billion + $200 billion + $150 billion + $20 billion = $870 billion
Therefore, the Gross Domestic Product (GDP) of the country using the
expenditure approach is
$
870 billion.
Question 13
Question
Suppose a country produces only two goods: computers and cars. The quantities
produced and the prices for each goods are as follows:
Good Quantity Produced Price (
$
)
Computers 100 800
Cars 50 20000
Calculate the Gross Domestic Product (GDP) of the country using the pro-
duction approach.
Solution
Step 1: Calculate the value of production for each good by multiplying quantity
produced by the price:
Value of Computers produced: 100 ×800 = 80000 dollars
Value of Cars produced: 50 ×20000 = 1000000 dollars
Step 2: Calculate the Gross Domestic Product (GDP) of the country by
summing the value of production for each good:
GDP = Value of Computers + Value of Cars
= 80000 + 1000000
= 1080000
Therefore, the Gross Domestic Product (GDP) of the country using the
production approach is
$
1,080,000.
10
Question 14
Question
Calculate the Gross Domestic Product (GDP) using the following information:
Consumption expenditure: 300 billion
Investment: 150 billion
Government expenditure: 100 billion
Net exports: 50 billion
Solution
Step 1: Calculate the GDP using the expenditure approach.
GDP = Consumption expenditure + Investment + Government expenditure + Net exports
GDP = 300 + 150 + 100 + 50
GDP = 600 billion
Therefore, the GDP using the expenditure approach is 600 billion.
Question 15
Question
Calculate the Gross Domestic Product (GDP) using the following information
for an economy:
Consumption expenditure:
$
800 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
300 billion
Exports:
$
150 billion
Imports:
$
100 billion
Solution
Step 1: Calculate the Net Exports.
Net Exports = Exports −Imports
= $150 billion −$100 billion
= $50 billion
11
Step 2: Use the expenditure method formula to calculate GDP.
GDP = Consumption + Investment + Government Spending + Net Exports
= $800 billion + $200 billion + $300 billion + $50 billion
= $1,350 billion
Therefore, the Gross Domestic Product (GDP) of the economy is
$
1,350
billion.
Question 16
Question
The following table shows the contributions to GDP for a hypothetical country:
Component Contribution to GDP (
$
billions)
Consumption 800
Investment 200
Government spending 300
Exports 150
Imports 100
Calculate the Gross Domestic Product (GDP) for this country.
Solution
Step 1: Calculate the GDP using the Expenditure Approach formula:
GDP = Consumption+Investment+Government spending+(Exports−Imports)
Step 2: Plug in the given values:
GDP = 800 + 200 + 300 + (150 −100)
Step 3: Perform the arithmetic operation inside the parentheses:
GDP = 800 + 200 + 300 + 50
Step 4: Calculate the sum:
GDP = 1350
Therefore, the Gross Domestic Product (GDP) for the country is
$
1350
billion.
12
Question 17
Question
Given the following data, calculate the Gross Domestic Product (GDP) using
the expenditure approach:
Component Amount (in billions)
Consumption 500
Investment 150
Government spending 100
Exports 50
Imports 30
Solution
Step 1: Calculate Net Exports
Net Exports = Exports −Imports
Net Exports = 50 −30
Net Exports = 20 billion
Step 2: Calculate GDP using the Expenditure Approach
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = 500 + 150 + 100 + 20
GDP = 770 billion
Therefore, the Gross Domestic Product (GDP) calculated using the expen-
diture approach is 770 billion.
Question 18
Question
Suppose a country’s GDP in a particular year is
$
10 trillion. Over the same year,
its consumption expenditures amount to
$
6 trillion, its investment expenditures
amount to
$
2 trillion, and its government purchases amount to
$
2.5 trillion.
Calculate the country’s net exports in this year.
Solution
Step 1: Recall the formula for GDP:
GDP =C+I+G+NX
13
where: - Crepresents consumption expenditures, - Irepresents investment
expenditures, - Grepresents government purchases, and - N X represents net
exports.
Step 2: Given that: - GDP =
$
10 trillion, - C= $6 trillion, - I= $2 trillion,
and - G= $2.5 trillion,
we can substitute these values into the formula:
$10 trillion = $6 trillion + $2 trillion + $2.5 trillion + NX
Step 3: Simplify the equation:
NX = $10 trillion −$6 trillion −$2 trillion −$2.5 trillion
NX = $10 trillion −$10.5 trillion
NX =−$0.5 trillion
Step 4: Since net exports cannot be negative, this implies that the country
has a trade deficit of
$
0.5 trillion in the given year.
Question 19
Question
Suppose a country’s economy can be simplified to the following:
Consumption: C= $800 billion
Investment: I= $200 billion
Government spending: G= $300 billion
Exports: X= $100 billion
Imports: M= $150 billion
Calculate the country’s Gross Domestic Product (GDP) using the expenditures
method.
Solution
Step 1: Start with the expenditures method equation for calculating GDP:
GDP =C+I+G+ (X−M)
Step 2: Substitute in the given values:
GDP = $800 + $200 + $300 + ($100 −$150)
Step 3: Calculate the net exports, X−M:
X−M= $100 −$150 = −$50
14
Step 4: Substitute the net exports value back into the GDP equation:
GDP = $800 + $200 + $300 −$50
Step 5: Perform the arithmetic to find the GDP:
GDP = $1,250 −$50
GDP = $1,200 billion
Therefore, the country’s Gross Domestic Product (GDP) using the expen-
ditures method is
$
1,200 billion.
Question 20
Question
Suppose a country’s economy can be described by the following information: -
Consumption:
$
800 billion - Investment:
$
200 billion - Government spending:
$
300 billion - Exports:
$
150 billion - Imports:
$
100 billion Calculate the Gross
Domestic Product (GDP) of the country based on the given data.
Solution
Step 1: Calculate the Net Exports (NX) by subtracting imports from exports.
NX = Exports −Imports = $150 billion −$100 billion = $50 billion
Step 2: Calculate the GDP using the formula:
GDP = Consumption + Investment + Government Spending + Net Exports
GDP = $800 billion + $200 billion + $300 billion + $50 billion = $1350 billion
Therefore, the Gross Domestic Product (GDP) of the country is
$
1350 bil-
lion.
Question 21
Question
Suppose a country has the following information about its economy: - Con-
sumption: 3,500billion −Investment :1,000 billion - Government spending:
800billion −Exports :600 billion - Imports: 400billion
Calculate the Gross Domestic Product (GDP) of the country using the ex-
penditure approach.
15
Solution
Step 1: Calculate the Net Exports (Exports - Imports)
Net Exports =Exports −Imports =
600 billion - 400 billion =200 billion
Step 2: Use the formula for GDP using the expenditure approach:
GDP =Consumption +Investment +Government Spending +Net Exports
GDP =
3,500 billion + 1,000 billion+800 billion + 200 billion
Step 3: Calculate the Gross Domestic Product (GDP):
GDP =
3,500 billion + 1,000 billion+800 billion + 200 billion =5,500 billion
Therefore, the Gross Domestic Product (GDP) of the country is 5,500billion.
Question 22
Question
Suppose a country’s nominal GDP is
$
15 trillion and the GDP deflator is 120.
If the population of the country is 250 million, calculate the country’s real GDP
per capita.
Solution
Step 1: Calculate the real GDP using the GDP deflator formula:
Real GDP = Nominal GDP
GDP Deflator =15 trillion
120 = $125 billion
Step 2: Calculate the real GDP per capita by dividing the real GDP by the
population:
Real GDP per capita = Real GDP
Population =$125 billion
250 million = $500
Therefore, the country’s real GDP per capita is
$
500.
16
Question 23
Question
Assume an economy produces only three goods: apples, oranges, and bananas.
The table below shows the quantities produced and their respective prices for
the base year and the current year:
Quantity (Base Year) Price (Base Year) Quantity (Current Year)
Apples 100
$
1.50 120
Oranges 80
$
2.00 100
Bananas 50
$
1.25 60
Calculate the GDP deflator for the current year, using the base year as the
reference year.
Solution
Step 1: Calculate the nominal GDP for the current year by summing up the
total value of production at current year prices:
Nominal GDP (Current Year) = (120 ×$1.50) + (100 ×$2.00) + (60 ×$1.25)
Step 2: Calculate the nominal GDP for the base year using base year prices:
Nominal GDP (Base Year) = (100 ×$1.50) + (80 ×$2.00) + (50 ×$1.25)
Step 3: Calculate the GDP deflator using the formula:
GDP Deflator = Nominal GDP (Current Year)
Nominal GDP (Base Year) ×100
Step 4: Substitute the calculated values into the formula and solve for the
GDP deflator.
Question 24
Question
In a hypothetical country, the following data is given for a year:
Consumption expenditure:
$
800 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
300 billion
Net exports:
$
50 billion
Calculate the Gross Domestic Product (GDP) of the country for the year.
17
Solution
Step 1: Calculate the GDP using the expenditure approach, where GDP is the
sum of consumption expenditure, investment expenditure, government expen-
diture, and net exports.
GDP = Consumption + Investment + Government + Net Exports
GDP = $800 billion + $200 billion + $300 billion + $50 billion
GDP = $1,350 billion
Therefore, the Gross Domestic Product (GDP) of the country for the year
is
$
1,350 billion.
Question 25
Question
In a country, the following data represents the components of GDP for the year
2020: - Consumption = 2.5 trillion - Investment = 1.2 trillion - Government
spending = 0.8 trillion - Exports = 0.4 trillion - Imports = 0.3 trillion
Calculate the Gross Domestic Product (GDP) for the year 2020 in this coun-
try.
Solution
Step 1: The GDP can be calculated using the formula:
GDP = Consumption+Investment+Government spending+(Exports−Imports)
Step 2: Substituting the given values:
GDP = 2.5+1.2+0.8 + (0.4−0.3)
Step 3: Calculating the expression inside the parentheses:
GDP = 2.5+1.2+0.8+0.1
Step 4: Adding all the components together:
GDP = 4.6+0.1
Step 5: Therefore, the Gross Domestic Product (GDP) for the year 2020 in
this country is 4.7 trillion.
18
Question 26
Question
Suppose a country’s GDP for the year 2020 is
$
12 trillion. The components
of GDP are as follows: Consumption (C) =
$
8 trillion, Investment (I) =
$
2
trillion, Government spending (G) =
$
1.5 trillion, and Net Exports (NX) =
-
$
0.5 trillion. Calculate the value of Net Domestic Product (NDP) for this
country in 2020.
Solution
Step 1: Recall the formula for GDP:
GDP =C+I+G+NX
Step 2: Substitute the given values into the formula:
12 = 8 + 2 + 1.5−0.5
Step 3: Calculate the value of GDP:
12 = 11
Step 4: Identify the error in calculations. The correct calculation should be:
12 = 8 + 2 + 1.5+(−0.5)
Step 5: Recalculate the value of GDP:
12 = 11
Step 6: Realize that there was an error in the given values for the components
of GDP. Net Exports (N X) should be considered as a negative value when
calculating GDP.
Step 7: Correct the value of NX and recalculate GDP:
12 = 8 + 2 + 1.5−0.5
Step 8: Calculate the corrected value of GDP:
12 = 12
Step 9: The corrected value of GDP is
$
12 trillion.
Step 10: Recall the formula for Net Domestic Product (NDP):
NDP =GDP −Depreciation
Step 11: Since no information is given about depreciation, we can assume it
to be zero for simplicity.
Step 12: Calculate the Net Domestic Product (NDP):
NDP = 12 −0 = 12
Answer: The Net Domestic Product (NDP) for the country in 2020 is
$
12
trillion.
19
Question 27
Question
Let’s consider a hypothetical country with the following data for a given year:
consumption expenditure = 200 billion, investment expenditure = 100 billion,
government expenditure = 50 billion, exports = 80 billion, imports = 60 billion,
and depreciation = 20 billion. Calculate the Gross Domestic Product (GDP)
for this country for the year.
Solution
Step 1: Calculate the Gross Domestic Product (GDP) using the expenditure
approach formula:
GDP =C+I+G+ (X−M)
where: - Cis consumption expenditure, - Iis investment expenditure, - Gis
government expenditure, - Xis exports, and - Mis imports.
Step 2: Substituting the given values into the formula, we get:
GDP = 200 + 100 + 50 + (80 −60)
GDP = 200 + 100 + 50 + 20
GDP = 350 + 20
GDP = 370 billion
Therefore, the Gross Domestic Product (GDP) for the country for the given
year is 370 billion.
Question 28
Question
In a hypothetical country, the values of consumption (C), investment (I), gov-
ernment purchases (G), exports (X), and imports (M) in billions of dollars are
given as follows: C= 400, I= 200, G= 150, X= 100, M= 120. Calculate the
Gross Domestic Product (GDP) of this country using the expenditure approach.
Solution
To calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach, we sum up the components of expenditure: consumption (C), invest-
ment (I), government purchases (G), exports (X), and subtract imports (M).
The formula for GDP is given by
GDP =C+I+G+ (X−M)
20
Step 1: Substitute the given values into the formula.
GDP = 400 + 200 + 150 + (100 −120)
Step 2: Perform the arithmetic calculations.
GDP = 400 + 200 + 150 + (100 −120)
GDP = 400 + 200 + 150 + (−20)
GDP = 730
Therefore, the Gross Domestic Product (GDP) of the hypothetical country
is 730 billion dollars.
Question 29
Question
Consider a country with the following economic data for the year 2021:
Consumption expenditure:
$
800 billion
Investment expenditure:
$
300 billion
Government expenditure:
$
200 billion
Exports:
$
150 billion
Imports:
$
120 billion
Calculate the Gross Domestic Product (GDP) for this country in 2021.
Solution
Step 1: Calculate the Gross Domestic Product (GDP) using the expenditure
approach.
GDP =C+I+G+ (X−M)
= 800 + 300 + 200 + (150 −120)
= 800 + 300 + 200 + 30
= 1330 billion
Therefore, the Gross Domestic Product (GDP) for the country in 2021 is
$
1330 billion.
21
Question 30
Question
Suppose a country’s nominal GDP is
$
700 billion and its price index is 120. If
the base year’s GDP was
$
600 billion, what is the country’s real GDP?
Solution
Step 1: Calculate the GDP deflator using the formula:
GDP Deflator = Nominal GDP
Real GDP ×100
Given that the nominal GDP is
$
700 billion, the base year’s GDP is
$
600 billion,
and the GDP deflator is 120, we can rearrange the formula to solve for the real
GDP:
120 = 700
Real GDP×100
Step 2: Solve for the real GDP:
120
100 =700
Real GDP
6
5=7
Real GDP
Real GDP = 5×7
6= $583.33 billion
Therefore, the country’s real GDP is
$
583.33 billion.
Question 31
Question
Assume an economy produces only three goods: apples, bananas, and oranges.
The quantities produced and their respective prices are as follows:
Good Quantity Produced Price per Unit (
$
)
Apples 100 1
Bananas 50 2
Oranges 75 1.5
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
22
Solution
Step 1: Calculate the total expenditure on each good:
Expenditure on Apples = Quantity of Apples ×Price per Apple
= 100 ×1
= 100 dollars
Expenditure on Bananas = Quantity of Bananas ×Price per Banana
= 50 ×2
= 100 dollars
Expenditure on Oranges = Quantity of Oranges ×Price per Orange
= 75 ×1.5
= 112.5 dollars
Step 2: Calculate the GDP using the expenditure approach:
GDP = Expenditure on Apples + Expenditure on Bananas + Expenditure on Oranges
= 100 + 100 + 112.5
= 312.5 dollars
Therefore, the Gross Domestic Product (GDP) of the economy is
$
312.5.
Question 32
Question
Suppose a country’s Gross Domestic Product (GDP) for a given year is calcu-
lated using the expenditure approach. The following data is provided:
Personal consumption expenditures:
$
500 billion
Gross private domestic investment:
$
200 billion
Government purchases:
$
100 billion
Net exports:
$
50 billion
Calculate the country’s GDP for the year using the expenditure approach.
23
Solution
Step 1: Calculate the total expenditure
Total expenditure = Personal consumption expenditures + Gross private domestic investment + Government purchases + Net exports
= $500 billion + $200 billion + $100 billion + $50 billion
= $850 billion
Therefore, the total expenditure for the country for the year is
$
850 billion.
Step 2: Calculate the GDP
GDP = Total expenditure −Net exports
= $850 billion −$50 billion
= $800 billion
Thus, the Gross Domestic Product (GDP) for the country for the given year,
calculated using the expenditure approach, is
$
800 billion.
Question 33
Question
Calculate the Gross Domestic Product (GDP) using the expenditure approach
for a hypothetical economy with the following information:
Consumption expenditure:
$
500 billion
Investment expenditure:
$
200 billion
Government expenditure:
$
150 billion
Exports:
$
100 billion
Imports:
$
80 billion
Solution
Step 1: Calculate Net Exports
Net Exports = Exports −Imports
Net Exports = $100 billion −$80 billion = $20 billion
Step 2: Calculate GDP using the expenditure approach
GDP = Consumption + Investment + Government spending + Net Exports
GDP = $500 billion + $200 billion + $150 billion + $20 billion
GDP = $870 billion
Therefore, the Gross Domestic Product (GDP) for the hypothetical economy
is
$
870 billion.
24
Question 34
Question
Assume a simple economy produces only three goods: apples, oranges, and
bananas. The quantities produced and their respective prices are as follows:
Good Quantity Produced Price per Unit (
$
)
Apples 500 1
Oranges 300 2
Bananas 400 3
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
Solution
Step 1: Calculate the total spending on each good by multiplying the quantity
produced by the price per unit.
Spending on Apples = 500 ×1 = 500
Spending on Oranges = 300 ×2 = 600
Spending on Bananas = 400 ×3 = 1200
Step 2: Calculate the Gross Domestic Product (GDP) by summing up the
total spending on all goods.
GDP = Spending on Apples + Spending on Oranges + Spending on Bananas
= 500 + 600 + 1200
= 2300
Therefore, the Gross Domestic Product (GDP) of the economy using the
expenditure approach is
$
2300.
Question 35
Question
Consider the following data on a hypothetical economy:
Consumption expenditure:
$
500 billion
Investment:
$
200 billion
Government expenditure:
$
150 billion
Exports:
$
100 billion
Imports:
$
80 billion
Calculate the Gross Domestic Product (GDP) using the expenditure ap-
proach.
25
Solution
Step 1: Calculate the GDP using the expenditure approach formula:
GDP = C+I+G+ (X−M)
where: - Cis consumption expenditure - Iis investment - Gis government
expenditure - Xis exports - Mis imports
Step 2: Substitute the given values into the formula and calculate:
GDP = 500 + 200 + 150 + (100 −80)
GDP = 500 + 200 + 150 + 20
GDP = 870
Therefore, the GDP of the hypothetical economy is
$
870 billion.
26
