This paper studies the efficient arrangement among several agents that are subject to idiosyncratic, privately observed taste shocks affecting their marginal utility of current consumption. Agents accumulate capital and have access to a technology to produce goods. The framework deviates from...

Both global and regional economic linkages have strengthened substantially over the past quarter century. We employ a dynamic factor model to analyze the implications of these linkages for the evolution of global and regional business cycles. Our model allows us to assess the roles played by the...

We first study growth and risk sharing in a stochastic growth model with preference shocks and two risk-averse agents. In periods in which one of the agents needs extra consumption (insurance), it is socially optimal to reduce the consumption of the other agent (redistribution) and also to...

Providing unemployment insurance is particularly problematic in countries with high informality because workers can claim unemployment benefits and work in the informal sector at the same time. This paper proposes a method to evaluate alternative schemes to provide insurance for unemployed...

A government that cannot commit to future policy choices faces a trade-off that explains the level of debt. On the one hand, there is an incentive to increase debt and delay taxation, so as to reduce current distortions. On the other hand, inflating current prices lowers the real value of...

In the absence of government commitment, the conduct of fiscal and monetary policy depends on the sign of inherited net nominal government obligations. When these obligations are negative, monetary policy is non-distortionary and fiscal policy distortions are smoothed over time, either forever...

Conventional theory suggests that fiat money will have value in capitalpoor economies. We demonstrate that fiat money may also have value in capital-rich economies, if the price of capital is excessively volatile. Excess asset-price volatility is generated by news; information that has no social...

When commitment is lacking, intertemporal trade is facilitated with the use of exchange media--interpreted broadly to include monetary and collateral assets. We study the properties of a model commonly used to motivate monetary exchange, extended to include a physical asset whose expected...

Rehypothecation refers to the practice of reusing (selling or pledging as collateral) an asset that has already been pledged as collateral for a cash loan. In high inflation economies, rehypothecation improves economic welfare, but there is generally too much of it. We find that regulatory...

When governments trade-off maximizing general welfare with maximizing their own expenditure, the degree of central bank independence has implications for inflation, taxes and debt. Making the central bank more independent implies that, for any given level debt, inflation and taxes decrease,...