Econ 208 Marek Kapicka Lecture 17 Review. Economic Principles Models we’ve seen Trade-offs Preferences What happens if there is an exogenous change Competitive.

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Presentation transcript:

Econ 208 Marek Kapicka Lecture 17 Review

Economic Principles Models we’ve seen Trade-offs Preferences What happens if there is an exogenous change Competitive equilibrium: prediction of the model

Government Policies Fiscal policy What happens if government increases expenditures? What happens if government cuts taxes? Regulation of Financial Institutions Consequences of deposit insurance, suspension of convertibility

Fiscal Policy What happens if government increases expenditures? Main Results: Increase in output, labor supply Decrease in consumption (crowding out) Fiscal multiplier λ : $1 change in gov’t expenditures ̶> $ λ change in GDP Benchmark model: <<1; depends on efficiency of public spending, elasticity of labor supply A model with sticky prices: can be >1

Fiscal Policy What happens if government increases taxes? Main Results Ricardian Equivalence: no change in consumption Path of govt debt is irrelevant Reason: no wealth effects Failure of Ricardian Equivalence Heterogeneity (in wealth or age) Distortive taxes Imperfect credit markets

Fiscal Policy Failure of RI: Heterogeneity across generations Social Security: Intergenerational redistribution Real effects of different social security schemes PAYG vs. FF PAYG better if population growth rate > interest rate

Fiscal Policy Failure of RI: Distortive taxes Labor taxes: Laffer Curve US vs. Europe: differences in labor taxes can explain a large part of differences in GDP per person Ramsey problem: How should taxes be chosen? Tax Smoothing Use debt to finance temporary increases in spending

Regulation of Financial Intermediation Bank runs: Productive assets need to be liquidated deposits are liquid, while investment is illiquid Solution: Deposit Insurance Possible problems: moral hazard Suspension of Convertibility Possible problem: time consistency

Final Monday June 12, 9-11 Closed books closed notes No calculator Structure: Multiple choice (~ 25%) Longer questions Examples: Equilibrium consumption and savings The effects of government expenditures Distortive Taxation, Social Security Financial Intermediation I’ll post last year’s final today