Geography, insolation, and vitamin D in nineteenth century US African-American and white statures

Using a new source of nineteenth century US state prison records I contrast the biological living conditions of comparable African-Americans and whites. Although blacks and whites today in the US reach similar terminal statures, nineteenth century African-American statures were consistently shorter than those of whites. Greater insolation (vitamin D production) is shown to be associated with taller black and white statures and a considerable share of the stature difference between US blacks and whites was attributable to insolation and vitamin D production. Black statures increased during the antebellum period, while white statures declined. Black and white statures both decreased after the Civil War. Farmers were taller than workers in other occupations, and an alternative explanation for stature variation by social class is considered.     

Productivity and Producer Welfare in the Presence of Production Risk

Production risk is an inherent characteristic of agriculture and changes in production risk will affect the welfare of risk‐averse producers. Using standard concepts from the literature on uncertainty, we introduce a welfare measure which comprises total factor productivity (TFP), production risk and farmer risk preferences, and which reflects the impact on producer welfare of changes in production technology. An empirical application is carried out using data from a sample of Spanish dairy farms which shows how the positive impact of increases in TFP on welfare can be offset by increases in the risk premium (‘cost of risk’) to the point where welfare may decrease.     

Teaching the Minimum Wage in Econ 101 in Light of the New Economics of the Minimum Wage

The author argues that the recent controversy over the effect of the minimum wage on employment offers an opportunity for teaching introductory economics. Research findings on the minimum wage could be used to motivate alternative models of the labor market, such as monopsony and search models, and to teach students how economists test hypotheses with data.     

Understanding Equity in the Recreation User Fee Context

Equity is a major public concern related to recreation fees on public lands. The purpose of this study was to test a three-dimensional model of equity and to examine the perceptions of equity across demographic segments. Data were collected by a telephone survey with residents (N = 366) of two western states. Confirmatory factor analysis supported the three-dimensional equity model in a recreation fee context. People tended to support democratic equity more than compensatory equity. Greater support was shown for discounted fees for the elderly and persons with disabilities than for discounts for ethnic minorities, low income people, or large families, suggesting the possibility of two sub-dimensions of the compensatory equity construct. Overall, the results do not support that disadvantaged groups seek discounted fees.     

Segmenting a market in the making: Industrial market segmentation as construction

This paper takes an empirical starting point in a claim that Biacore, a pioneering Swedish producer of affinity biosensors, was “in the enviable position of creating its own market” (Abelin, 1997). An in-depth case study traces how Biacore undertook segmentation activities while shaping the market for its new product technology, affinity biosensors. This involved stabilising the modes of exchange with customers, the product and the identity of the company. The efforts of Biacore highlight a constructive dimension of market segmentation that hitherto has received little attention. Rather than a process of describing, deciding and taking action, Biacore engaged in the gradual construction of market segments through an interactive and iterative process involving close collaboration with early users. Simultaneously, the market for the new technology gained shaped. Thus, the paper reports a ‘markets from networks’ story illustrating how the practice of segmenting a market may have consequences for that market.     

A Response to 'Ecotourism on Trial: The Case of Billfish Angling as Ecotourism'

This paper estimates the quantity of pollutant produced by the Hong Kong hotel industry through diesel oil consumption. A survey of 20 hotels was carried out to collect three years' energy consumption data. Regression analysis indicated that gross floor area was a major and statistically accepted factor in explaining diesel oil consumption. Diesel oil consumption had reduced from the early 1990s and stabilised by the late 1990s. The sulphur dioxide, nitrogen dioxide, carbon dioxide and particulate pollution created by the hotel industry's diesel oil usage from 1990 to 1999 is estimated. The findings indicate that existing green measures and devices are passive and depend on the assimilation of the atmosphere. Environmental costs have stabilised at about HK$54,000 per annum. More proactive approaches to reduce usage and environmental impacts are proposed.     

Imparting negative news to salespeople

Sales managers often are required to give negative information to their sales personnel. Perhaps the salespeople's territories will be reduced, their compensation or expense program decreased, or their positions realigned or eliminated. Although extensive research has examined delivering negative news to sales personnel, no empirical work has yet explored how that inimical information should be disseminated to sales subordinates. Scholars in organizational psychology argue that providing adverse news to employees using interpersonal sensitivity is advantageous for both the individual and the organization. To date, though, this issue has not been investigated in a selling context. Therefore, this article reports the results of an exploratory study that investigated factors that influence whether sales managers provide negative communication to salespeople in an interpersonally sensitive fashion. © 2011 Wiley Periodicals, Inc.     

Public service and private gain

The Department of Education &; Science recently published details of the type of financial delegation schemes which schools will have to submit by September 1989. Together with other elements in the Education Reform Act, it is clear that delegation will give considerable scope to headteachers with the requisite abilities and attitudes to develop as general managers, and so create distinctive institutions which reflect their vision of what constitutes a good school.