We consider dynamic competition among platforms in a market with network externalities. A platform that dominated the market in the previous period becomes "focal" in the current period, in that agents play the equilibrium in which they adopt the focal platform whenever such equilibrium exists....

While there is growing evidence of persistent or even permanent output losses from financial crises, the causes remain unclear. One candidate is intangible capital - a rising driver of economic growth that, being non-pledgeable as collateral, is vulnerable to financial frictions. By sheltering...

This paper introduces a framework to facilitate an interdisciplinary analysis of 'competition'. While such an interdisciplinary analysis can be justified by referencing the various fields of social and economic life in which 'competition' is important, three challenges are found to aggravate...