Reflexive habits: dating and rationalized conduct in New York and Berlin

This paper builds on the work of Norbert Elias to examine how conduct varies across cultural contexts. We compare courtship practices in New York and Berlin and ask how people act during the course of ‘getting together’ with a sexual or romantic partner. Drawing on interviews in both contexts, we find that conduct associated with the practice of ‘dating’ among New York respondents is more rationalized as indicated by a greater awareness of timing, a greater degree of intentionality and planning and a greater tendency to psychologize self and others. Berlin respondents report observations of themselves and others in less detail and tend to describe themselves as passive objects of the impersonal forces of love. Whereas conduct associated with dating is more reflexive in some ways, these forms of reflexive conduct are not themselves fully conscious or the object of reflection but have in turn become taken for granted and habitual. These findings challenge us to conceptualize habitus in a manner that does not reproduce the opposition between habit and reflexivity but allows us to use the concept as a tool to capture variations in how self‐monitoring and habit are combined in modes of conduct.     

Self-Forgiveness and Mortality in Late Life

The purpose of this study is to see if older people who are able to forgive themselves have a lower mortality risk than older adults who are not able to forgive themselves. In addition, it is hypothesized that the relationship between self-forgiveness and mortality will be contingent upon the level of an older individual’s education. More specifically, it is predicted that the potentially beneficial effects of self-forgiveness will be more evident among older people with more years of schooling. Data from a nationwide survey of older people provide support for this view. Self-forgiveness does not provide a mortality benefit for less educated elders. But as the level of educational attainment rises, self-forgiveness is associated with a progressively smaller mortality risk.     

New Health Risks and Sociocultural Contexts: Bird Flu Impacts on Consumers and Poultry Businesses in Lao PDR

Avian flu has been identified as one of the most challenging new risks, global in impact due to the "highly interconnected and integrated world economy along with other unpredictable events such as the Asian financial crisis and global terrorism." We have chosen the case of Lao PDR to shed light on an area in which local people consume chicken as one of their staple foods. Our research analyzes consumer behavior, poultry business modification patterns in a high-risk country, and government reaction for business resilience. The geographic choice is motivated by the 2006 EIU report on Catastrophe Risk Management that indicated that Asian-Pacific companies are better prepared for such risks as bird flu than European business is, despite the many cases found in both regions.     

Hierarchical clustering of variables: a comparison among strategies of analysis

In this paper some hierarchical methods for identifying groups of variables are illustrated and compared. It is shown that the use of multivariate association measures between two sets of variables can overcome the drawbacks of the usually employed bivariate correlation coefficient, but the resulting methods are generally not monotonic. Thus a new multivariate association measure is proposed, based on the links existing between canonical correlation analysis and principal component analysis, which can be more suitably used for the purpose at hand. The hierarchical method based on the suggested measure is illustrated and compared with other possible solutions by analysing simulated and real data sets. Finally an extension of the suggested method to the more general situation of mixed (qualitative and quantitative) variables is proposed and theoretically discussed.     

PRICE DISPERSION WITH DIRECTED SEARCH

We present a model that generates empirically plausible price distributions in directed search equilibrium. There are many identical buyers and many identical capacity‐constrained sellers who post prices. These prices can be renegotiated to some degree and the outcome depends on the number of buyers who want to purchase the good. In equilibrium all sellers post the same price, demand is randomly distributed, and there is sale price dispersion. Prices and distributions depend on market tightness and on the properties of renegotiation outcomes. In a labor market context, the model generates a strong empirical prediction. If workers can renegotiate the posted wage, then the model predicts a positively skewed and realistic‐looking density function of realized wages when the mean number of job‐seekers per vacancy is large. (JEL: C780, D390, D490, E390)     

Explaining offline and online civic engagement intentions between Italian and migrant youth / Análisis de las intenciones de participación cívica virtual y presencial entre jóvenes italianos y emigrantes

The aim of the study was to assess the role of some psychosocial factors in explaining offline and online civic engagement intentions in a sample of Italian and second generation migrant (Albanian and Moroccan) adolescents and young adults living in Italy. The theoretical model was an extended version of the Theory of Planned Behaviour including past experience. The sample included 598 adolescents and young adults (M = 19.32, SD = 3.17). Two hundred were Italian (88 males, 44.0%), 197 migrants of Albanian origin (130 males, 66%) and 201 migrants of Moroccan origin (116 males, 57.7%). Moroccan youth reported higher levels of both past civic engagement and future intentions than Albanian and Italian peers. Perceived effectiveness of civic engagement and past experience are consistently associated with stronger intentions to engage in the future (offline and online) in all groups. Internal efficacy plays a limited role, whereas the role of subjective norms differs according to the group and the source of normative influence (parents, peers).     

Using mixtures in seemingly unrelated linear regression models with non-normal errors

Seemingly unrelated linear regression models are introduced in which the distribution of the errors is a finite mixture of Gaussian distributions. Identifiability conditions are provided. The score vector and the Hessian matrix are derived. Parameter estimation is performed using the maximum likelihood method and an Expectation–Maximisation algorithm is developed. The usefulness of the proposed methods and a numerical evaluation of their properties are illustrated through the analysis of simulated and real datasets.     

Estimation of Acute Toxicity by Fitting a Dose-Time-Response Surface

In acute toxicity testing, organisms are continuously exposed to progressively increasing concentrations of a chemical and deaths of test organisms are recorded at several selected times. The results of the test are traditionally summarized by a dose-response curve, and the time course of effect is usually ignored for lack of a suitable model. A model which integrates the combined effects of dose and exposure duration on response is derived from the biological mechanisms of aquatic toxicity, and a statistically efficient approach for estimating acute toxicity by fitting the proposed model is developed in this paper. The proposed procedure has been computerized as software and a typical data set is used to illustrate the theory and procedure. The new statistical technique is also tested by a data base of a variety of chemical and fish species.