We present a model where an incumbent firm has a proprietary product whose technology consists of at least two components, one of which is patented while the other is kept secret. At the patent expiration date, an entrant firm will enter the market on the same technological footing as the...

The aim of this work is to investigate the risk of anti competitive behaviour implied by temporary groups of service providers. The point bears policy implications as local authorities, following European Union directives, have stressed the role of such alliances in the public procurement of...