In Ulph (2002) I analysed how the possibility of future resolution of uncertainty about damage costs affected the incentives and timing for countries to join a self-enforcing international environmental agreement (IEA). I analysed two membership rules – fixed (countries commit whether to join...

In this paper, we develop a model of advertising in a differentiated duopoly in which firms first decide how much to invest in cooperative or predatory advertising and then engage in product market competition (Cournot or Bertrand). We then use this model, with endogenously determined type of...

We use a simple model of sequential duopoly to examine the effect of different industrial structures on firms' output decision and profit shares in the international market for raw and processed tropical timber products. The model provides insights that can be applied to the Indonesian logging...