In the absence of correlation between net wealth and entrepreneurial talent, net wealth should have an explanatory power in the decision of becoming entrepreneurs only for households that are financially constrained. Further, the importance of net wealth should be higher for the poorest...

We analyze the impact of an increase in the risk of divorce on the saving behaviour of married couples. From a theoretical perspective, the expected sign of the effect is ambiguous. We take advantage of the legalization of divorce in Ireland in 1996 as an exogenous increase in the likelihood of...

This paper investigates the degree of consumption insurance in a standard overlapping generations life-cycle model calibrated to the U.S. data. To directly confront the model predictions with the recent empirical evidence of Blundell, Pistaferri and Preston (2008) (BPP hereafter), I adopt BPP's...

A negative real interest rate has guaranteed macroeconomic equilibrium during every emergency in the United States since the early 19th century, except the Great Depression in the 1930s when deflation interfered with the interest rate mechanism. During the Great Depression, the interest rate...

Many participants in self-directed retirement plans (401k, IRA, etc.) do not know enough about investing to choose rationally among alternatives. Others may know enough, but find it unpleasant or too time-consuming. Target-date funds (TDFs), also known as life-cycle funds, are being offered as a...

This paper analyzes dynamic equilibrium risk sharing contracts between profit-maximizing intermediaries and a large pool of ex-ante identical agents that face idiosyncratic income uncertainty that makes them heterogeneous ex-post. In any given period, after having observed her income, the agent...

Advancing annuity demand theory, we present sufficient conditions for the optimality of full annuitization under market completeness that are substantially less restrictive than those used by Yaari (1965). We examine demand with market incompleteness, finding that positive annuitization remains...

This paper draws upon the modern science of finance to address several important practical issues in personal finance. Chief among these is how much to save for retirement and how to invest those savings. The paper suggests ways that advances in the theory of finance combined with innovations in...

As of 2005, individuals had an estimated $7.4 trillion invested in IRAs and employer-sponsored retirement accounts. Given these investments, many retirees will face the difficult problem of turning a pool of assets into a stream of retirement income. Purchasing an immediate annuity is a common...

We introduce a general class of incomplete markets that includes almost all well known examples of market incompleteness in finance and macroeconomics. Two concrete examples are the problem of idiosyncratic income shocks and general, diffusion driven incompleteness. For all markets in this class...