In most macroeconomic models, the substitutability between domestic and foreign goods is calibrated using aggregated data. This imposes homogeneous elasticities across goods, and the calibration is only valid under this assumption. If elasticities are heterogeneous, the aggregate...

The optimal provision of loan guarantees or deposit insurance is examined in the context of an overlapping generations model. It is demonstrated that even in the face of a market imperfection that precludes diversification of the private sector’s loan portfolio to eliminate risk, full...

Observers have often characterized asset markets as being subject to periods of tranquility and periods of turbulence. Until recently, however, researchers were unable to produce closed-form asset pricing formulas in a model environment of time-varying risk. Some work by Abel provided us with...

This paper compares the SDR in terms of its risk-return characteristics relative to those of its five components and, on this basis, finds that the SDR has performed favorably over the period under review. In addition, several efficient portfolios including the SDR and its components are...

The paper developes a VAR macrofinance model of the Czech economy. It shows that yield misalignments from the yields implied by the macrofinance model partially determine subsequent yield changes over three to nine months. These yield misalignments tend to persist for a number of months. This...

One plausible mechanism through which financial market shocks may propagate across countries is through the effect of past gains and losses on investors'' risk aversion. We first present a simple model on how heterogeneous changes in investors'' risk aversion affect portfolio decisions and stock...

A firm theoretical basis for the empirical relationship between dependency rates and savings behavior in developing countries is still lacking. Two demographic extensions of the representative household’s stochastic dynamic optimization problem are presented here. It is shown that the...

This paper examines whether financial deregulation in the 1980s has reduced the importance of liquidity constraints in consumption patterns. Data for six industrialized countries are used to estimate a simple model incorporating liquidity constraints and forward looking behavior. It is concluded...

One plausible mechanism through which financial market shocks may propagate across countries is through the effect of past gains and losses on investors' risk aversion. We first present a simple model on how heterogeneous changes in investors' risk aversion affect portfolio decisions and stock...