appropriate for computer software, as it may decrease both ex-ante incentives to innovation and ex-post efficiency of diffusion …In this paper we contend that – contrary to what argued by a vast part of the literature – computer software and, more … concerned, this means that innovative activities in computer software are characterized by high degrees of interdepen- dencies …

The TeX typesetting software was developed by Donald E. Knuth in the late 1970s. It was released with an open source … uncovered in previous studies of other open source software projects, such as GNU/Linux, an operating system, and Apache, a web … that are at work and influence the project. The case study explores the economic impact of the TeX software which is sold …