This paper undertakes an ex ante economic analysis of research on how resistance to trypanosomosis- a dominant livestock disease in Africa- can be maintained and enhanced while retaining and reinforcing characteristics of economic importance to farmers, and on how 'trypanotolerance' can be...

Over the past 20 years the growth of China's agricultural economy has been extraordinary. However, it seems unlikely that China will maintain self-sufficiency in grains by 2005 without substantial intervention. We develop a CGE model to assess the options available to Chinese policy makers. We...