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...

Firms selling multiple quality-differentiated products frequently alter their product lines when a competitor enters the market. We present a model of multiproduct monopoly and duopoly using a general "upgrades" approach that yields a powerful analytical framework. We provide an explanation for...