The theoretical consistency and practical applicability of traditional welfare economics has long been subject to controversy. More recently the challenge has been added from evolutionary approaches that the individual preferences on which the welfare calculus is based are themselves subject to...

We propose a formal re-definition of the concept market failure based on the idea of the imperfect state. In the Neo-classical taxonomy, a decentralized regime of exchange is a market failure if its laissez faire equilibrium solution is welfare-dominated by a technically feasible alternative. If...

Behavioral economics has shown that individuals sometimes make decisions that are not in their best interest. This insight has prompted calls for behaviorally-informed policy interventions popularized under the notion of "libertarian paternalism". This type of soft paternalism aims at helping...

The social cost of carbon (SCC) is a monetary measure of the harms from carbon emission. Specifically, it is the reduction in current consumption that produces a loss in social welfare equivalent to that caused by the emission of a ton of CO2. The standard approach is to calculate the SCC using...