This paper studies the endogenous determination of the nature of telephone calls, namely whether they are local or long distance. Calls between users in the same local calling area are local, and we allow the extension of this area to be treated as a strategic variable. We show that the...

In this paper we build a simple three-country model to evaluate the impact of "call-back" on international telephony. The effects on both accounting rates and collection prices are studied. Call-back firms exploit arbitrage opportunities in collection prices among countries, rerouteing calls...

We study the strategic choice of compatibility between two initially incompatible network goods in a two-stage game played by an incumbent and an entrant firm. Compatibility may be achieved by means of a converter. We derive a number of results under different assumptions about the nature of the...

Thanks to a recent and vast empirical literature, we know in details how the most popular open source projects are organized and why they succeed. However, open source is not only Linux: in this paper we use a large data-set obtained from SourceForge.net to estimate the main determinants of the...

Dual licensing has proved to be a sustainable business model for various commercial software vendors employing open source strategies. In this paper we study the main characteristics of dual licensing and under which conditions it represents a profitable commercial strategy. We show that dual...