The paper develops an explicit formula for the calculation of optimal carbon taxes in a dynamic integrated assessment framework. We attempt to generalize the Gosolov et al. (2014) theory by relaxing the restrictions with logarithmic preferences, Cobb-Douglas production and the full periodwise...

The extent of genetic diversity in food crops is important as it affects the risk of attack by pathogens. A drop in diversity increases this risk. Farmers may not take this into account when making crop choices, leading to what from a social perspective is an inadequate level of diversity.