Before revision:  Despite the number and variety of fixed effects this model entails , we confirm it is consistent for small T and we show it is in fact the only estimator among a wide range of PML gravity estimators that is generally consistent in this context when T is small .
After revision:  Despite the number and variety of fixed effects this model entails , we confirm it is consistent for small T and we show it is in fact the only estimator among a wide range of PML gravity estimators that is generally consistent in this context when T is fixed .