This study extends traditional analyses of the voluntary provision of public goods to take account of the behaviour of competitive charities who are able to use advertising expenditures to market themselves to donors and thereby potentially increase donation revenues.

The paper uses a model of the North and South to predict emissions of Carbon dioxide, atmospheric concentration of carbon dioxide, global mean temperature, and payoffs in terms of cumulative GDP less policy costs and policy damages from climate change. The model is used to simulate to 2100 the...