We study competitive interaction between profit-maximizing firms that sell software and complementary goods or services. In addition to tactical price competition, we allow firms to compete through business model reconfigurations. We consider three business models: the proprietary model (where...

In this paper I study how innovation investment in a software duopoly is affected by the fact that one of the firms is, or might become Open Source. Firms can either be proprietary source (PS) or open source (OS) and have different initial technological levels. An OS firm is a for profit...

The open source model is a form of software development with source code that is typically made available to all interested parties. At the core of this process is a decentralized production process: open source software development is done by a network of unpaid software developers. Using data...

Conflicts in North and West Africa have become more violent and widespread than in the past. They have also become more difficult to resolve due to the complex relationships between a growing number of belligerents with diverging agendas. Building on a dataset of more than 36 000 violent events...

Women make a significant contribution to West Africa's food economy, perpetuating a long tradition of commerce and participating in cross-border trade and regional outreach. Their activities face numerous obstacles but also present important opportunities, highlighted in this report through an...