Duality methods of linear and convex programming are applied to impute definite marginal values to the fixed inputs of a hydroelectric plant from the operating profit. Our earlier analysis of pumped storage (of energy and other cyclically priced goods) is thus extended to valuation of an...

We apply duality methods of linear and convex programming to the problems of operation and rental valuation of facilities for conversion and storage of cyclically priced goods, e.g. , energy. Both problems are approached by shadow-pricing the stock (which is a purely intermediate commodity); and...

This is a new formal framework for the theory of competitive equilibrium and its applications. Our “short-run approach” means the calculation of long-run producer optima and general equilibria from the short-run solutions to the producer’s profit maximization programme and its dual. The...

Empirical papers studying the effects of neighbourhood characteristics on socio-economic variables have predominantly used US data. We argue that the local nature of the US schooling system means that neighbourhood effects on education decisions may act through fiscal or social channels. We use...

This paper uses data on a sample of Australian teenagers to test for neighbourhood effects on school dropout rates. The data allows us to test for neighbourhood effects at two different spatial scales. We find that educational composition of the larger neighbourhood can influence the dropout...

There is theoretical evidence that economic and family policies have an important impact on mother''s employment. The aim of this article is to study empirically the women''s transitions from employment to non-employment after they have their first birth in Belgium, West-Germany, Italy, Spain...

Common wisdom states that teenage childbearing reduces schooling, labour market experience and adult wages. However, the decisions to be a teenage mother, to quit school, and be less attached to the labour market might all stem from some personal or family characteristics. Using the National...

This paper reports the accounts of fifteen headteachers of primary schools in one local authority in the South East of England, including headteachers of schools that are amongst the most advantaged five per cent of schools in England and those amongst the most disadvantaged twenty per cent. The...

Researchers in economics of education usually assume that parents choose schools for their high academic performance, with some support from revealed preference evidence based on local house prices. However, anecdotal evidence and common sense suggest that school quality is not one-dimensional...

This paper examines sorting into interracial friendships at selective universities. We show significant friendship segregation, particularly for blacks. Indeed, black friendships are no more diverse in college than in high school despite the colleges blacks attend having substantially smaller...