The explosion of the global financial crisis in 2008 and its transmission to the real economies have been interpreted as calling for new kinds of regulation of the banking and the financial systems that would have allowed reestablishing a virtuous relation between the real and the financial...

This paper introduces the problem of a planner who wants to control a population of heterogeneous agents subject to idiosyncratic shocks. The agents differ in their initial states and in the realization of the shocks. In continuous time, the distribution of states across agents is described by a...

The OLG model of Allais and Samuelson retains the methodological assumptions of agent optimization and market clearing from the Arrow-Debreu model, yet its equilibrium set has different properties: Pareto inefficiency, indeterminacy, positive valuation of money, and a golden rule equilibrium in...

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...

This note extends Lucas' (1987) analysis to assess welfare gains of economic growth and welfare costs of consumption inequality, both within and across countries. We find that the welfare costs of inequality are significantly larger than the gains of economic growth. While the gains of economic...

We present a comprehensive macroeconomic model for the U.S. There exist strict long-term relations between real GDP, price inflation, labor force participation, productivity, and unemployment. The evolution of real GDP depends only on exogenous demographic forces. Other macro-variables follow up...

While this paper emphasizes the analytical ambiguity of the relationship between savings and income inequality, the empirical examination renders weak support for a negative association between them. However, this relationship is not very robust. Subsamples of OECD countries and Asian countries...

The present study investigate the relationship between the persistence of uninsurable income shocks and consumption inequality over a household's life cycle in Japan. Using a life cycle model with incomplete asset markets and calibrated parameters for the Japanese economy, we quantitatively show...

I develop and simulate an equilibrium model of search with endogenous savings and search intensity. The wage offer distribution is endogenized by firms making vacancy and entry choices. This allows me to conduct a counterfactual analysis of the optimal unemployment insurance (UI) level. The...

While this paper emphasizes the analytical ambiguity of the relationship between savings and income inequality, the empirical examination renders weak support for a negative association between them. However, this relationship is not very robust. Subsamples of OECD countries and Asian countries...