In economies of overlapping genenrations, competitive equilibrium allocations and interest rates may be indeterminate. In a world economy with multiple countries, a competitive equilibrium need not satisfy the condition that the balance of payments be in equilibrium. In a stationaryeconomy with...

In an open economy, outside money in positive supply does not eliminate the real indeterminacy which arises under uncertainty and incomplete asset markets. If money supply is subject to shocks or is not perfectly credible in all countries, the level of a fixed exchange rate matters. Analogous...

We use a two-good dynamic intertemporal general equilibrium model to formalize the economic intuition of Krugman about the explanation of the J-curve phenomenon in terms of habit persistence in consumption and sluggishness in capital adjustment. The results differ markedly according to the...

In economies of overlapping generations, competitive equilibrium allocations and interest rates may be indeterminate. In a world economy with multiple countries, a competitive equilibrium need not satisfy the condition that the balance of payments be in equilibrium. In a stationary economy with...

In an open economy, outside money in positive supply does not eliminate the real indeterminacy which arises under uncertainty and incomplete asset markets. If money supply is subject to shocks or is not perfectly credible in all countries, the level of a fixed exchange rate matters. Analogous...

Hedging strategies for commodity prices largely rely on dynamic models to compute optimal hedge ratios. This paper illustrates the importance of considering the commodity inventory effect (effect by which the commodity price volatility increases more after a positive shock than after a negative...

This paper illustrates some computationally efficient estimation procedures for the estimation of vast dimensional realized covariance models. In particular, we derive a Composite Maximum Likelihood (CML) estimator for the parameters of a Conditionally Autoregressive Wishart (CAW) model...

Several models have been developed to capture the dynamics of the conditional correlations between time series of financial returns, but few studies have investigated the determinants of the correlation dynamics. A common opinion is that the market volatility is a major determinant of the...

Chapter written for the Handbook of Volatility Models and their Applications, edited by Luc Bauwens, Christian Hafner, and Sébastien Laurent, forthcoming in 2012 (John Wiley & sons). This chapter presents an introductory review of volatility models and some applications. The review is linked...

This paper investigates the meaning of systemic risk in energy markets and proposes a methodology to measure it. Energy Systemic Risk is defined by the risk of an energy crisis raising the prices of all energy commodities with negative consequences for the real economy. Measures of the total...