A formula is derived for the social cost of carbon (SCC) that takes account of intragenerational income inequality and its evolution with economic growth. The social discount rate (SDR) should be adjusted to account for intragenerational and intergenerational inequality aversion and for risk...

We study all theories of justice that disentangle ethical views on intergenerational discounting and intergenerational inequality. Each “modular” social welfare function is uniquely identified by a time-discounting function—capturing attitudes toward time—and an aggregator function—...

In CBA practices around the world, benefits are valued regardless of to whom they accrue. This disregards basic economic principles, like declining marginal utility of income, or inequality aversion. This paper argues that if redistribution matters, net benefits must be aggregated using a...

Inequity plays a fundamental role in the evaluation of social welfare in many dimensions.We revisit the concept of inequity, whether across states of world (uncertainty), across individuals (inequality) and across generations (intergenerational equity), using a common framework generalizing the...