We review and interpret the main theoretical developments in the gravity literature from its very early, a-theoretical applications to the latest structural contributions. We also discuss challenges and implement methods to estimate empirical gravity equations. We finish with a presentation and...

This paper studies the role of reduced barriers to international trade from two dimensions: (i) the implementation of Free Trade Agreements and (ii) declining "border effects". Our empirical estimates suggest that diminished border effects accounts for the bulk of the increase in international...