We study the possibility of cartel formation among primary exporters who face an inelastic world demand for their exports. By constructing an appropriate infinitely repeated export game, we show that varying country sizes will pose difficulties in sustaining the collusive behaviour.

We analyze a market for microfinance in a region of a developing nation in which all projects are either of high or low quality. There is adverse selection because only borrowers know whether their project is of high or low quality but the microfinance institutions (MFIs) do not. The MFIs are...