expectations essay for economic

1. Why are expectations important for macroeconomics? Discuss the use of rational expectations and adaptive expectations in macroeconomic models.

Introduction

Macroeconomics is the study of economic issues at their aggregate or economic levels as a whole. It plays an integral role in understanding the overall environmental forces and conditions that influence the economy ( )

There are two types of macroeconomic expectation: Rational expectations are a set of assumptions relating to how economic agents exploit available information to inform their decisions .Adaptive expectations are a collection of hypotheses that state that people adjust their expectations of the future based on existing and previous experiences and events().

This essay will discuss the importance of expectation as well as their types and roles for macroeconomic and their uses in macroeconomic models.

Main body

Macroeconomic is an area of knowledge that studies the structure and performance of national economies and policies that governments can utilize to propel economic progress ( ).Researchers, focus on assessing the aggregated metrics such as GDP, unemployment rates, national income and price indices (Tsai 2019).

The study of expectation is important because when expectations are explored, the consumption behaviour of customers can be understood, including a firm’s production pattern and equilibrium. This can enable policymakers and firms to understand the economic wellbeing of customers, whether they are rich or poor. Their wellbeing is often influenced by the movements in Interest-rate, Exchange-Rate, and Inflation-rates, which are all macroeconomic variables ( ) .Additionally, macroeconomic helps to understand whether business is in a position of gaining or losing money when their economic change.

Risk Uncertainties and Expectations

Decision-making in risk management may be approached using physical and psychic income perspectives. These dimensions can generate findings that have implications for social policy development, implementation and assessment, especially during risky and uncertain situations.(Carlin and Soskice, 2015). Understanding the behaviours and decision making under conditions of risks and uncertainties can enable people to consolidate, adjust, or wholly reorient social policy agendas and interventions.

Patterns of inflation may form part of risks and uncertainties. Wage setters may utilize past inflation to guide them to determine how they anticipate the prices to change over the year ahead. Like those who make spending decisions, there is a strong likelihood that wage setters may think about the future.

After all, they are more interested in setting specific real wages, which implies that the future movements of the process of commodities in the consumption basket may concern them. However, it can be presumed is to set nominal wage to compensate them for erosions of the real wage that took place owing to unexpected inflation over the previous period (Carlin & Soskice 2014).

Muth’s Theory of Rational Expectation (few more explanation here )

The Muth’s theory of rational expectation is a model that is widely embraced in macroeconomics. According to the theory, people base their decisions on three key factors:

1- human rationality

2- information available

3- Previous experiences

According to Muth (1961), expectations data show that averages of expectations in an industry are more accurate than unexperienced models and as accurate as elaborate equation systems. Additionally, reported expectations often underestimate the magnitude of changes that really occur. Moreover, since they are informed predictions of future events, are generally the same as the predictions of relevant economic theory. Furthermore, the theory holds that information is scarce, and the economic system does not generally waste it ( ).

Adaptive Expectation and Philips Curve Theory

Milton Friedman was one of the leading adaptive expectation theorists. He utilized the short—run and long-run Philips Curve(PC) to assess the dynamics of adaptive expectations. PC framework focuses on the choice between the nominal wage increase and unemployment-rates to reach a conclusion that is different from Keynes (Birol 2014).

Increase in the nominal wages and thus, general price, reaches inflationary dimensions before the economy reaches the full-employment equilibrium.

The long-term aggregate supply curve in the economy steepens and the realization of unemployment rate, which is lower than this point, becomes impossible due to high price increment beyond the point (Birol 2014). According to Friedman, the economy reaches the equilibrium at this unemployment rate automatically in the long-run.

The Roles of Expectation

1- Investment

Expectation play an important role in decision making. For example expected return can be used to determine required return. Investors require higher returns when the consumption is low in relation to a particular benchmark. ( ). return expectations often seem to be extrapolative in the sense that they are high after a period of high market returns and low after periods of low market returns

2- Government and Central Bank Policy

Expectation data such as financial cycles can be used by central banks to determine recession risks.

Central banks may examine longer-term issues when making policy decisions. Very loose monetary policies may increase the risk appetite while very low interest rates for a prolonged period of time may weaken banking institutions and other financial institution. It may examine longer-term issues when making policy decisions. So, banks may also misallocate capital and promote more debt accumulation. Such risks should also be taken into consideration by central banks when making fiscal policies. Furthermore, considering central banks’ price stability goals and objectives, monetary policy may be strongly influenced by concerns regarding inflation expectations and the interest rate floor.

3- Income and wealth

The instability of PC relationships was often attributed to changes in inflationary expectations. This phenomenon resulted in the rate of inflation becoming postulated to depend upon some excess demand measures, together with the anticipated rates of inflation. Traditionally, expectations have been essentially conceptualized to be developed in an auto aggressive manner. This is because they were expected to rely on previous values of the variable that is being forecasted. When it comes to income, hypotheses on expectations can be used to determine people’s spending behaviour. For instance, people are likely to spend money at levels that are consistent with their expected long-term average incomes. The level of expected long term income can be viewed as the level of permanent income that can be spent securely. Expectations can also influence wealth accumulation and distribution

The Lucas Critique

The Lucas critique is based on Robert Lucas’s works on macroeconomic policy formulation. The critique asserts that it is uninformed to attempt to predict the impacts of a change in macroeconomic policy wholly based on the relationships observed in historical records, particularly when dealing with highly aggregated data ( ).

The relationships between economic variables observed in precious data or estimated by macro econometric models are not reliable for economic policymaking. So , people rationally adjust their expectations and behaviour based on their understanding of the potential impacts of the economic policy.

· The three equation models may be presented in full and the steps back to equilibrium will be fully explained. 200 words maximum to make a Comparison of adaptive and rational inflation expectation  in the 3 equation model

IR= INTEREST RATE ER=EXCHANGE RATE