users to satisfy their specific needs; the more a software evolves towards a stable release able to address the requirements of its developers, the more successful the project. In this paper we use a large data-set obtained from SourceForge.net to estimate the impact of observed project...

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...

This paper focuses on a specific strategy that developers of mobile applications may use to stimulate demand: the release of updates. We start with a stylised theoretical analysis to describe the developer's decision to release an update. Its predictions are then tested by using an unbalanced...

In many industrial sectors, firms amass large patents portfolios to reinforce their bargaining position vis a vis competitors. In a context where patents have a pure strategic nature, we discuss how the presence and the effectiveness of a patent system affect firms technological decisions....

This text rigorously blends theory with real-world applications to study the industrial organisation of the ICT sector. Each of the self-contained chapters, which can be studied in isolation, contains theoretical models that are presented in a clear and accessible way. Throughout, a series of...

This paper reviews the main theoretical and practical arguments in favor and against governments’ policies supporting Free/Open Source (F/OS) software. Using the information gathered from the OSOR.eu website, we build an original dataset about F/OS software interventions across Europe and we...

During the last few decades, the number of patents in information and communication technologies has increased considerably. An increasing number of patents and the associated fragmentation of IP rights have generated a series of potentially problematic consequences. Patent thickets, royalty...

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...

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...