We model countries’ choice of greenhouse gas (GHG) emissions as a dynamic game. Emissions generate immediate benefits to the emitting country but also increase atmospheric GHG concentrations that negatively affect present and future welfare of all countries. Because there are no international...

This paper studies countries' incentives to develop advanced pollution abatement technology when technology may spillover across countries and pollution abatement is a global public good. We are motivated in part by the problem of global warming: a solution to this involves providing a global...

The shock to the global economy from COVID-19 is predicted to be faster and more severe than the 2008 global financial crisis and even the Great Depression. We assess its impact on global fossil fuel consumption and CO2 emissions over a two-year horizon. For this purpose we employ a global...

We analyze how the threat of a potential future regime shift affects optimal management. We use a simple general growth model to analyze four cases that involve combinations of stock collapse versus changes in system dynamics, and exogenous versus endogenous probabilities of regime shift. Prior...

We analyze how the threat of a potential future regime shift affects optimal management. We use a simple general growth model to analyze four cases that involve combinations of stock collapse versus changes in system dynamics, and exogenous versus endogenous probabilities of regime shift. Prior...

Since 1999, China has spent RMB 50 billion (about US$7 billion) to implement the Grain for Green programme, the largest land retirement programme in the developing world. From 1999 to 2003, over 7.2 million hectares of agricultural land were retired under the programme. However, many farmers...