This paper studies how tax-and-transfer progressivity influences aggregate fluctuations when interacting with household heterogeneity. Using a simple static model of the extensive margin labor supply, we analytically characterize how a degree of progressivity influences differential labor supply...

How do defaults and bankruptcies affect optimal health insurance policy? I answer this question,using a life-cycle model of health investment with an option to default on emergency room(ER) bills and financial debts. I calibrate the model to the U.S. economy and compare the optimalhealth...

In the United States, the employment rate is nearly flat across wealth quintiles with the exception of the first quintile. Correlations between wealth and employment are close to zero or moderately positive. However, incomplete markets models with a standard utility function counterfactually...