This paper considers a dynamic model of the evolution of open source software projects, focusing on the evolution of quality, contributing programmers, and users who contribute customer support to other users. Programmers who have used open source software are motivated by reciprocal altruism to...

The ability of companies to turn an environmental constraint into a source of strategic opportunities is a controversial topic in published research. The article, which is based on a comparative study of the CO2 emission reduction strategies implemented by the cement and chemical industries,...