Explain what you understand by the term 'Comparative static' as used in macroeconomics outlining it's limitations ?

In macroeconomics, comparative statics refers to the analysis of how changes in exogenous variables affect equilibrium outcomes in a model. It involves comparing the equilibrium values of endogenous variables before and after a change in exogenous variables.

For example, in a simple supply and demand model, comparative statics would involve analyzing how changes in factors such as consumer income or production costs affect the equilibrium price and quantity in the market.

Limitations of comparative statics include:

1. Ceteris Paribus Assumption: Comparative statics analysis often relies on the ceteris paribus assumption, which means holding all other variables constant except the one being analyzed. In reality, this assumption may not hold true as changes in one variable may affect other variables in the model.

2. Dynamic Effects: Comparative statics analysis does not account for dynamic effects or the time it takes for the economy to adjust to a new equilibrium. In reality, adjustments may take time and involve complex interactions between different variables.

3. Non-linear Relationships: Comparative statics analysis assumes linear relationships between variables, which may not always be the case in the real world. Non-linear relationships can lead to unexpected outcomes and make it difficult to predict the effects of changes in exogenous variables.

4. Simplified Models: Comparative statics analysis is often conducted using simplified models that may not capture the full complexity of the economy. This can lead to inaccurate or incomplete conclusions about the effects of changes in exogenous variables.

Overall, while comparative statics can provide valuable insights into how changes in exogenous variables affect equilibrium outcomes in macroeconomic models, it is important to recognize its limitations and consider them when interpreting the results of such analysis.