This proposal involves the establishment of ‘welfare accounts’ for every person in a country. There are four accounts: a retirement account (covering pensions), an unemployment account (covering unemployment support), a human capital account (covering education and training), and a health...

An enormous number of empirical papers have estimated technical efficiency, the distance of firms inside a frontier, following the model of Farrell (1957). We propose a theory that explains the distance these empirical papers seek to measure. The theory is based on the idea that workers can...

No abstract.