A two-country model of the FDI versus export decisions of firms is analysed. The analysis considers both the Cournot duopoly and the Bertrand duopoly models with differentiated products. It is shown that the static game is often a prisoners' dilemma where both firms are worse off when they both...

Taxation under oligopoly is analysed in a general equilibrium setting where the firms are large relative to the size of the economy and maximise the utility of their shareholders. It turns out that the model is an aggregative game, which simplifies the comparative statics for the effects of...

Assuming constant marginal cost, it is shown that a switch from specific to ad valorem taxation has no effect on the critical discount factor required to sustain collusion. This result is shown to hold for Cournot oligopoly as well as for Bertrand oligopoly when collusion is sustained with...