This article reviews the developments in frictional matching models from 1990 to 2010, exploring how search frictions skew the matches that occur. This research succeeded by exploiting new tools from monotone methods under uncertainty. Seeing how this journey plays out is instructive in itself...

This paper explores a simple class of matching games in which individuals meet pairwise, unwittingly passing along a bad in a contagion fashion. It may be a private “bad”, like a counterfeit money or stolen art. Or it may be a collective “bad”, like a disease or a computer virus. Either...