Elements of an Evolutionary Theory of Welfare: Assessing Welfare When Preferences Change

It has always been an important task of economics to assess individual and social welfare. The traditional approach has assumed that the measuring rod for welfare is the satisfaction of the individual’s given and unchanging preferences, but recent work in behavioural economics has called this into question by pointing out the inconsistencies and context-dependencies of human behaviour. When preferences are no longer consistent, we have to ask whether a different measure for individual welfa...