The United States and Brazil fiercely compete with each other in the Chinese soybean import market. Logistical functions and costs are volatile and risky, and influence the export competition between the two countries. This study analyzes commodity trading strategies and the effect of logistical...

In linear regression analysis, the estimator of the variance of the estimator of the regression coefficients should take into account the clustered nature of the data, if present, since using the standard textbook formula will in that case lead to a severe downward bias in the standard errors....

Many interesting and important economic questions relate to the e§ects of binary treatments such as starting a college degree or participating in a job training program. The causal e§ects of these treatments are likely to be heterogeneous and recent research has emphasized the estimation of...

We propose methods for constructing regularized mixtures of density forecasts. We explore a variety of objectives and regularization penalties, and we use them in a substantive exploration of Eurozone inflation and real interest rate density forecasts. All individual inflation forecasters (even...

A solution to deal with endogeneity when external instruments are not available is through heteroschedasticity. This paper shows that the available estimators might suffer from finite sample bias and proposes a solution. In MonteCarlo simulations the proposed solution makes the bias equal to...

Stochastic volatility models are very flexible models able to characterize financial volatility evolution. This article explores computational capabilities based on Graphical Processing Units to simulate many Monte Carlo Markov chains in estimating stochastic volatility model parameters through...