Data & Code

• Gravity Distances

• Gravity-consistent aggregate distances between countries and other geographical entities details 

• glmhdfe

• R package that implements a fast estimation procedure of generalized linear models with high dimensional fixed effects. The package makes use of a convenient property of *some* combinations of error term distributions and link functions, where the fixed effects have — conditional on all other estimated parameters — an explicit solution. details 

• gravity.distances

• R package that provides distances between geographic entities — such as countries, US states or Canadian provinces — that are consistent with the gravity equation in international economics. details