We present a model of industry equilibrium to study the coexistence of open-source and proprietary firms. Two novel aspects of the model are (i) participation in open source arises as the optimal decision of profit-maximizing firms, and (ii) open-source and proprietary firms may (or may not)...

Using detailed edit-level data over eight years across a large number of articles on Wikipedia, we find evidence for a positive spillover effect in editing activity. Cumulative past contributions, embodied by the current article length, lead to significantly more editing activity, while...

The open source movement evolved in the one industrial context where openness is not required by intellectual property law.1 Nevertheless, openness itself cannot be the driving force behind the open source movement. This is because openness can be achieved in many ways other than the GPL, for...

The directions of research on innovation or on the staging of innovative processes progress have evaluated over time from an innovational perspective constraint within an activity pursued by the entrepreneur (regarded as an entity creating possible and numerous innovative combinations) to an...

ChEMBL Beaker is an open source web framework, exposing a versatile chemistry-focused API (Application Programming Interface) to support the development of new cheminformatics applications. This paper describes the current functionality offered by Beaker and outlines the future technology roadmap.

This paper casts light on the role of initial code release for providing coordination of joint search processes, i.e., search processes that involve several agents who search together. We develop hypotheses about the role of initial code release for providing coordination, and for whether...

An extensive empirical literature indicates that, even without formal intellectual property rights, innovators enjoy a variety of first-mover advantages and that `imitation' is itself a costly activity. There is also accumulating evidence that an `open' approach to knowledge production can...

We analyze a model with two software firms, quality improving coding expenditures and potential competition. The firms can publish parts of their software as open source. Publishing software implies positive spillovers and thus reduces the firms' coding costs. On the other hand there exist two...

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...

In this paper, we discuss the provision of bibliographic data as an extension of the open source concept. Our particular concern is the sustainability of such endeavors. We describe the RePEc (Research Papers in Economics) project, probably the largest "open source" bibliographic database. It...