Drawing upon evolutionary economics and resource-based approaches, the author utilises US patent data from 1930-1990 to examine the persistence of corporate technological competencies and their gradual erosion through diversifying incremental change. The book explores the changing nature of this...

We explore the impact of labour turnover on firm performance by analysing the predictions of an extension of the efficiency wage model of [Salop, S., (1979) 'A Model of the Natural Rate of Unemployment'. American Economic Review, 69, 117-125.] developed by [Garino, G. and Martin, C., (2008) 'The...

Background: This study aims to explore the views of women concerning their choice of long-acting method of contraception. Method: Two-hundred and eighty-six women who had either been sterilised or fitted with an etonorgestrel (ETN) implant or the levonorgestrel intrauterine system (LNG IUS)...

Energy inputs are compared with biomass energy output for several sawtimber and woody biomass programs covering rotation ages from 2 to 120 yr. A consistent comparision with several published studies supports the hypothesis that the energy ratio ER (i.e. the ratio of energy out to energy in)...

A model of majority rule is developed in which each of a finite number of generations votes on a redistribution of income between itself and the other generations. In voting, each generation expresses tastes for its own income and for the distribution of income across generations. The model is...

To assess the effects of mass transfer and hydrogen pressure on the oil yield and quality from cellulosic biomass, fixed-bed pyrolysis (atmospheric pressure) and hydropyrolysis experiments at temperatures between 400 and 650°C have been conducted on sunflower bagasse and pure cellulose. The...

Virtual water is the water required to produce food or a commodity, and includes rainwater in addition to irrigation and the water required to grow feed in livestock systems. Measuring virtual water is a useful concept in assessing water management as it permits the comparison of crops and...