This paper decomposes the risk premia of individual stocks into contributions from systematic and idiosyncratic risks … 80% of the equity and variance risk premia, respectively. I provide a categorization of sectors based on the risk profile …

evaluating optimal near-term innovation investment portfolios in four key clean energy technologies (solar, biofuels … produced by climate-economy models while introducing the dimension of uncertainty in innovation ef- forts, without succumbing … innovation to improve the performance of these technologies. We employ an IAM (WITCH) which has a fairly rich description of the …

Because of risk aversion, any sensible investment valuation system should value less Projects that contribute more to … the aggregate risk, i.e., that have a larger income elasticity of net benefits. In theory, this is done by adjusting … public and private institutions and people use a discount rate that is rather insensitive to the risk profile of their …