Collective-action problems arise in a variety of situations. Open-source software is a recent and important example. Copyright restrictions on open-source projects stipulate that any user may modify the software so long as any resulting innovation is freely available to all. In economic...

Coordination problems arise in a multitude of economic interactions. Recent advances in the field of game theory have shed new light on these problems and the ways in which they might be analysed. This issue of the Oxford Review of Economic Policy first examines some of the theoretical...

Simple plurality election systems (commonly known as 'first past the post') are often associated with the dominance of two political parties. Such systems tend to reward leading parties with a disproportionately large number of seats (the 'mechanical' effect) and provoke tactical voting, where...