Idiosyncratic labor incomes are typically modeled either by stochastic processes with heterogeneous income profiles (HIPs) or restricted income profiles (RIPs). The HIP assumes that individual labor income grows deterministically at an unobserved rate and contains a persistent but stationary...

This paper identifies a new sufficient condition for a prudent agent to have positive precautionary saving in the presence of labor income and interest rate risks of any size. We also provide three economic interpretations for this condition focusing respectively on the marginal effect of saving...

This paper uses a heterogeneous-agent overlapping-generations model to examine the fiscal and distributional consequences of introducing a means test in US Social Security. I find that a means test, that is, conditioning benefit payments on a household's earnings or assets, leads to a higher...

Empirical evidence suggests that it may cost time, effort, and resources to implement an optimal consumption-saving plan, although the cost may differ across individuals. This paper explores the implications of such friction. We begin by documenting a series of facts on consumption and savings...

This paper constructs a structural retirement model with hyperbolic preferences and uses it to estimate the effect of several potential Social Security policy changes. Estimated effects of policies are compared using two models, one with hyperbolic preferences and one with standard exponential...

In the literature, econometricians typically assume that household income is the sum of a random walk permanent component and a transitory component, with uncorrelated permanent and transitory shocks. Using data on realized individual incomes and individual expectations of future incomes from...

This paper builds a general equilibrium, financial accelerator model hat incorporates an explicit technology for the intermediary sector. Acredit multiplier emerges because of a borrowing constraint that is a function of asset prices, internal funds and lending rates. With this financial...

Wie reagieren private Haushalte auf eine Veränderung der Verbraucherpreise oder des Zinsniveaus? Reduzieren sie gegenwärtigen Konsum und sparen stattdessen für die Zukunft, wenn Preise oder Zinssätze steigen? Oder lassen sie ihren einmal gewählten Konsumpfad unverändert? Nur wer die...

Die Riester-Rente beziehungsweise die einzelnen Riester-Produkte haben sich seit ihrer Einführung zuungunsten von Sparern verändert. Verträge, die heute abgeschlossen werden, führen oftmals zu einer geringeren Rendite als 2001 vereinbarte Verträge. Insgesamt sind die Renditen aus...