Intersecting generalized Lorenz curves and the Gini index

As is well known, the use of the Gini coefficient in comparisons is inconsistent with an utilitarian approach. This paper analyzes the Gini coefficient's normative significance in welfare comparisons evaluating income distributions according to Yaari dual social welfare function. When generalized Lorenz curves cross once, the Gini coefficient is decisive in determining welfare rankings if we strengthen the Principle of Transfers applying a Positional version of the Principle of Transfer Sensitivity. This result can also be extended to the case of multiple crossings. Received: 28 August 1996 / Accepted: 22 October 1997     

Depression during menopausal transition: a review of treatment strategies and pathophysiological correlates

It has long been recognized that women are at a higher risk than men to develop depression and that such risk is particularly associated with reproductive cycle events. Recent long-term, prospective studies have demonstrated that the transition to menopause is associated with higher risk for new onset and recurrent depression. A number of biological and environmental factors are independent predictors for depression in this population, including the presence of hot flushes, sleep disturbance, history of severe premenstrual syndrome or postpartum blues, ethnicity, history of stressful life events, past history of depression, body mass index, socioeconomic status and the use of hormones and antidepressants. Accumulated evidence suggests that ovarian hormones modulate serotonin and noradrenaline neurotransmission, a process that may be associated with underlying pathophysiological processes involved in the emergence of depressive symptoms during periods of hormonal fluctuation in biologically predisposed subpopulations. Transdermal estradiol and serotonergic and noradrenergic antidepressants are efficacious in the treatment of depression and vasomotor symptoms in symptomatic, midlife women. The identification of individuals whom might be at a higher risk for depression during menopausal transition could guide preventive strategies for this population.     

Farming without a recipe: Wisconsin graziers and new directions for agricultural science

From 2005 through 2008, we undertook a participatory research project involving graziers from 8 farms in Southern Wisconsin, all of whom practice management intensive grazing. We used semi-structured interviews and participant observation during research and field days to investigate graziers’ engagement with university research. Grazing farms demonstrate rich variability and individuality as a result of their position within a number of biophysical and social contexts. Graziers emphasized the importance of finding ways to work with the variables of their specific context, rather than trying to control that variability. This effort entails the development and use of local knowledge, as graziers respond to the idiosyncrasies of their farms. It also leads graziers to reject mainstream agricultural research that has produced formulas for agricultural uniformity. The picture of grazing that emerged from our interviews leads us to propose the search for agroecological principles and agroecological tools, embedded in context, as an alternative to conventional research. We argue that this proposal speaks to the greater conundrum of how to relate the general knowledge of science to the place-specific, experience-based knowledge of grass-based farmers.     

Immigration,Repatriation, and Deportation: The Mexican‐Origin Population in the United States, 1920–1950

Scholars conventionally assert that government authorities forcibly expelled 500,000 persons of Mexican origin from the U.S. in the 1930s, with more than half of those removed U.S. citizens. Estimates using census data indicate substantially lower numbers, limited governmental involvement, fewer citizens, and considerable voluntary departure. Voluntary decisions fit the repatriation strategy that had been common among young Mexican immigrants in the 1920s. Ironically, the 1940s Bracero Program, designed by Mexico and the U.S. to replicate the 1920s pattern of circular migration, led instead to massive illegal immigration and unprecedented levels of deportation.     

An Integrated Approach to Select Key Quality Indicators in Transit Services

Social Indicators Research - Recent interests in transit services have captured attention of experts on the monitoring of public transport quality. Previous research focused on relevant models and...     

Impact measurement and dimension reduction of auxiliary variables in calibration estimator using the Shapley decomposition

Statistical Methods & Applications - In multipurpose surveys several interest variables and a very large number of auxiliary variables are collected. Auxiliary variables are usually considered...     

Testing for Independence of Wage Drift and Minimum Contractual Wage: An Empirical Investigation Using Italian Aggregate Time Series

A theoretical two-stage bargaining model for wage drift and minimum contractual wage is discussed and its implication in terms of Granger-causality between the two variables is tested by using Italian aggregate time series. Empirical evidence suggests rejecting the independence of the two series. This result has, in turn, implications for policy analysis. Our findings seem to indicate the appropriateness of a policy oriented towards decentralized wage setting.