Many improvements have been proposed for the basic gravity model specification, most of which are confirmed by standard statistical tests due to the large number of observations often used to estimate such models. We use Monte Carlo experiments to examine situations in which features of models...

We note that calibration parameters in a multi-country Armington trade model play a role similar to that of econometric residuals: they allow the model to fit the data exactly. We use this premise to evaluate the "fit" of a standard multi-country computable general-equilibrium model. We find...

Economists and psychologists have each puzzled over the nature of decision making and the formation of expectations. Mainstream economists currently base their theory of expectation formation on the assumption of rationality Rationality implies unbiased forecasts and learning from past mistakes....