We provide a theory of trading through intermediaries in over-the-counter markets. In our model, the role of intermediaries is to sustain unsecured trade. When agents borrow funds to invest in risky projects without pledging collateral, total surplus can increase. We propose a set-up in which...

The Lagos-Wright model -- a monetary model in which pairwise meetings alternate in time with a centralized meeting -- has been extensively analyzed, but always using particular trading protocols. Here, trading protocols are replaced by two alternative notions of implementability: one that allows...

The Lagos-Wright model -- a monetary model in which pairwise meetings alternate in time with a centralized meeting -- has been extensively analyzed, but always using particular trading protocols. Here, trading protocols are replaced by two alternative notions of implementability: one that allows...