In this paper we describe a solution to the problem of controlling the size of homoskedasticity tests in linear regression contexts.

This paper proposes finite-sample procedures for testing the SURE specification in multi-equation regression models, i.e. whether the disturbances in different equations are contemporaneously uncorrelated or not.

In this paper, we provided a unifying analysis of latent variable models in finance through the concept of stochastic discount factor (SDF).

In this paper, we introduce a new approach for volatility modeling in discrete and continuous time.

Multi-countru models have not been very successful in replicating features of the international transmission of business cycles. Standard models predict cross-country correlations of output and consumption which are respectively too low and loo high. In this paper, we built a multi-country model...