Households hold vastly heterogenous amounts of wealth when they reach retirement, and differences in lifetime earnings explain only part of this variation. This paper studies the role of intergenerational transmission of ability, voluntary bequest motives, and the recipiency of accidental and...

This paper provides two main contributions. First, it provides a new theory of wealth inequality that merges two forces generating inequality: bequest motives and inheritance of ability across generations; and an earnings process that allows for more earnings risk for the richest. Second, it...

We study the effects of credit shocks in a model with heterogeneous entrepreneurs, financing constraints, and a realistic firm size distribution. As entrepreneurial firms can grow only slowly and rely heavily on retained earnings to expand the size of their business in this set-up, we show that,...

In the data, wealth is very unequally distributed, even more so than labor earnings and income, and the saving rate of wealthy people is high. Many dynamic models used for quantitative policy evaluation imply that once households get rich, they dissave. As a result, these models generate too...

The old age provisions of the Medicaid program were designed to insure poor retirees against medical expenses. However, it is the rich who are most likely to live long and face expensive medical conditions when very old. We estimate a rich structural model of savings and endogenous medical...

This paper constructs a rich model of saving for retired single people. Our framework allows for bequest motives and heterogeneity in medical expenses and life expectancies. We estimate the model using AHEAD data and the method of simulated moments. The data show that out-of-pocket medical...

In the United States wealth is highly concentrated and very unequally distributed: the richest 1% hold one third of the total wealth in the economy. Understanding the determinants of wealth inequality is a challenge for many economic models. We summarize some key facts about the wealth...

We study the effects of abolishing estate taxation in a quantitative and realistic framework that includes the key features that policy makers are worried about: business investment, borrowing constraints, estate transmission, and wealth inequality. We use our model to estimate effective estate...

Rich people, women, and healthy people live longer. We document that this heterogeneity in life expectancy is large, and we use an estimated structural model to assess its effect on the elderly's saving. We find that the differences in life expectancy related to observable factors such as...

People have heterogenous life expectancies: women live longer than men, rich people live longer than poor people, and healthy people live longer than sick people. People are also subject to heterogenous out-of-pocket medical expense risk. We construct a rich structural model of saving behavior...