With the notable exception of China, in most countries with below-median per capita income the growth rate of the population is greater than that of total wealth. This trend is ultimately unsustainable. For many of these countries, policies for sustainability will require both boosting savings...

Empirical evaluation of policies to mitigate climate change has been largely confined to the application of discounted utilitarianism (DU). DU is controversial, both due to the conditions through which it is justified and due to its consequences for climate policies, where the discounting of...