Based on the decision to file an escape clause petition by a firm, a Poisson regression model of the macroeconomic determinants of the total number of these petitions yearly is developed and estimated. The Poisson specification conforms to the fact that the number of escape clause petitions is a...

Ethnic networks—as proxies for information networks—have been associated with higher levels of international trade. Previous research has not differentiated between the roles of these networks on the extensive and intensive margins. The present paper does so using a model with fixed effects,...

Current decomposition estimates of sex discrimination by employers are not robust. Many "unobservables," like motivation and attitudes toward work, are left unmeasured. The authors estimate sex discrimination with two plausible methods of controlling for a major unobservable--acceptance of male...

A flexible, generalized Poisson model is combined with the multinomial distribution to jointly predict households' choices among types of trips and frequency of trips. The model is compared with conventional Poisson models. The problem of a time-variant mean for frequencies is also addressed, as...

Ethnic networks—as proxies for information networks—have been associated with higher levels of international trade. Previous research has not differentiated between the roles of these networks on the extensive and intensive margins. The present paper does so using a model with fixed effects,...