The problem of the computability of Walrasian competitive equilibrium is considered from the point of view of concepts of approximate equilibrium. Neither the market-clearing nor Negishi approaches to the proof of existence of Walrasian competitive equilibrium give rise to adequately robust...

This paper investigates the changing relationship between employment and real output in the U.S. economy from 1948 to 2010 both at the aggregate level and at some major industry-grouping levels of disaggregation. Real output is conventionally measured as value added corrected for price...

Service industries such as Finance, Insurance, and Real Estate, Education and HealthServices, and Professional and Business Services, for which value added is imputed from incomes, are included in Gross Domestic Product, potentially distorting measures of recession and recovery. An alternative...