Recently the software industry has experienced fundamental changes in market structure through the entry of open source competitors, e.g. Linux's entry into the operating systems market. In a simple model we examine the effects of such a change in market structure from monopoly to duopoly under...

Open source software (OSS) is a public good. A self-interested individual would consider providing such software, if the benefits he gained from having it justified the cost of programming. Nevertheless each agent is tempted to free ride and wait for others to develop the software instead. This...

Shipbuilding has changed from a "heavy industry" to become a capital- and technologyintensive activity over the last decades. While Japanese, South Korean and Western European yards dominate the merchant shipbuilding market so far, Eastern European yards are increasingly active, in particular in...