Capitalism since its inception has been marked by large fluctuations. The resulting episodic unemployment has been very costly. This paper provides an overview of alternative theories. Standard models (such as DSGE) have not provided insights into the causes of the fluctuations and the shocks...

Recognizing the importance of the second-best nature of economies, the Stern-Stiglitz report on carbon pricing departed from the recommendation of a single carbon price for all uses at all places and times. This paper provides some of the analytics behind these recommendations. First, I analyze...

This paper analyzes the economic impact of the pandemic, providing insights into the consequences of alternative policies. Our framework focuses on three key features: (a) Covid-19 is a sectoral shock of unknown depth and duration affecting some sectors and technologies more than others; (b)...

What can explain the large changes in aggregate demand that occur in the absence of any seemingly corresponding shock to the underlying state variables of the economy? We show that macroeconomic volatility can arise from dispersions of beliefs among agents. These dispersions give rise to bets...

"How does the lack of legitimacy of property rights affect the dynamics of the creation of the rule of law? We investigate the demand for the rule of law in post-Communist economies after privatization under the assumption that theft is possible, that those who have "stolen" assets cannot be...

Wealth inequality is rising in rich countries. Capital taxation used simply to finance redistribution may not be able to counteract this trend, but can increased public investment financed by higher capital taxes? We examine how such a policy affects the distribution of wealth in a setting with...

This paper makes two contributions. First, we examine the macroeconomic implications of Puerto Rico's Fiscal Plan that was certified in March 2017 for fiscal years 2017-18 to 2026-27. Second, we perform a Debt Sustainability Analysis (DSA) that incorporates the expected macroeconomic dynamics...

We study the Rothschild-Stiglitz model of insurance markets, introducing endogenous information disclosure about insurance sales and purchases by firms and consumers. We show that a competitive equilibrium exists under unusually mild conditions, and characterize the unique equilibrium outcome....

Imperfections in risk and capital markets imply that individuals who lose jobs suffer from imperfect smoothing of consumption across states and times. Compared to the first best, there will be too little search. Optimal unemployment programs, which balance the marginal benefit of consumption...