The costs of HIV/AIDS programs are significant from a macroeconomic or fiscal perspective in a number of countries. Assessing the fiscal implications is complicated by the long lags between infection and the need for HIV/AIDS-related services, and the long duration over which these services...

According to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) (Le Treut et al. 2007, 96), climate is defined as average weather over a period of time, ranging from months to millions of years. Climate is usually described in terms of the mean and variability...

Modeling the impacts of climate change presents a complex challenge arising from the wide-ranging processes underlying the working of markets, ecosystems, and human behavior. The analytical framework used in this monograph integrates modeling components that range from the macro to the micro to...