The optimal duration of a supply contract balances the costs of re-selecting a supplier against the costs of being matched to an inefficient supplier when the contract lasts too long. I develop a structural model of contract duration that captures this tradeoff and provide an empirical strategy...

Organizational decisions in multistage production processes are often not made by the downstream headquarter firm, but by the various intermediate inputs suppliers along the value chain themselves. We assume a production process with one headquarter (final good producer) and two suppliers at...

For quite a long time, network industries used to be regarded as (natural) monopolies. This was due to these industries having some special characteristics. Network externalities and economies of scale in particular justified the (natural) monopoly thesis. Recently, however, a trend towards...