What are the gains from international trade? And how do immigrants influence this process? We consider the case of Canada, document its experience with import variety growth in the period from 1988 to 2007, and relate this variety growth to the process of immigration. We find that import...

We show that the folk theorem in Wen [Q. Wen (1994), The "Folk Theorem" for repeated games with complete information, Econometrica, 62, 949-954.] may not fully characterize the subgame perfect equilibrium payoff set in a repeated game with unequal discounting, where a player's equilibrium payoff...