Risk-defusing in decisions by probability of detection of harm and promotion and prevention focus

Risk-defusing operators (RDO) are actions that reduce risk, to be enacted either before a negative event occurs (pre-event RDOs) or afterwards (post-event RDOs). For post-event RDOs, detection probability of the negative events is relevant. Regulatory focus theory suggests that promotion-oriented individuals – independent whether it is a personal disposition or favored by situational cues – should focus on chances to succeed and therefore choose post-event RDOs more likely than prevention-oriented individuals who are likely to focus on possible failures and means to avoid them. In two experimental studies, we examined effects of detection probability and regulatory focus as a state variable on the choice of post-event RDOs. Results replicate findings that the likelihood to choose post-event RDOs increases with increasing detection probability of the negative events. Contrary to expectation, no clear effects of regulatory focus were found. Exploratory analyses showed some evidence that successful manipulation of regulatory focus might influence RDO choices if tasks are highly relevant for decision-makers.     

Marital Sorting and Parental Wealth

The extent of marital sorting by socioeconomic background has implications for the intergenerational transmission of inequality, the role of marriage as a mechanism for social mobility, and the extent of cross-group interactions within a society. However, studies of assortative mating have disproportionately focused on spouses’ education, rather than their social origins. Using data from the Panel Study of Income Dynamics (PSID), and exploiting the unique genealogical design of the data set, we study the degree to which spouses sort on the basis of parental wealth. We find that the estimated correlation in parental wealth among married spouses, after controlling for race and age, is about .4. Importantly, we show that controlling for spousal education explains only one-quarter of sorting based on parental wealth. We show that our results are robust to accounting for measurement error in spousal reports of parental wealth and for selection into and out of marriage.     

Different Roles and Viewpoints of Scientific Experts in Advising on Environmental Health Risks

Environmental health risks are often complex, largescale, and uncertain. The uncertainties inherent in these problems permit differences among experts in the appraisal of risks. This raises the question of whether different expert roles exist and, if so, how this affects the policy advice that is given. Here, we present a pilot study of the different roles and viewpoints that can be discerned among scientific experts in the Netherlands. Q methodology was used to empirically explore existing theoretical treatises on different expert roles. In total, 26 electromag­netic field (EMF) experts and 21 particulate matter (PM) experts participated. The responses were analyzed separately for EMF and PM respondents using Q factor analysis. In both the EMF and PM domain, three different expert roles were identified. This suggests that particular expert roles depend on the specific environmental health risk. The results indicate that different expert roles exist among scientists who provide policy advice on environmental health risks. This empirical study adds new data and insights to the literature on expert roles. The results of this study are relevant for the selection and composition of expert committees and the interpretation of expert advice.     

Generalized binomial distributions

In many cases where the binomial dismbution fails to apply to real world data it is because of more variability in the data than can be explained by that dismbution. Several authors have proposed models that are useful in explaining extra-binomial variation. In this paper we point out a characterization of sequences of exchangeable Bernoulli random variables which can be used to develop models which show more variability than the binomial. We give sufficient conditions which will yield such models and show how existig models can be combined to generate further models. The usefulness of some of these models is illustrated by fitting them to sets of real data.     

Diffusing (let it happen) or disseminating (make it happen) innovations in health care

Management has different options for spreading new products. Our study empirically assessed the integral effects of both diffusion and dissemination on innovation adoption. Data on diffusion (as measured by social network density) and on dissemination (as measured by formulating objectives and executing focused activities) was gathered using a questionnaire given to 356 medical specialists, nested in 38 teams. We found both separate and integral effects for diffusion and dissemination. This shows the potential for both engaging the social network structures (diffusion) and adding process measures (dissemination) in order to optimize the innovation spreading process.     

Pragmatism and empirical sociology: the case of Jane Addams and Hull-House, 1889�C1895

The theoretical tools bequeathed to us by classical and revival pragmatism offer the potential for informing robust empirical work in sociology. But this potential has yet to be adequately demonstrated. There are a number of strands of pragmatism; this article draws primarily upon Dewey??s theory of action to examine Hull-House in its early years. Of particular interest are the practices of Jane Addams and other Hull-House residents. What were they doing to help people and why? An attempt to answer these questions in non-teleological terms forms the empirical basis of the article. This article should provide some support to those historical sociologists who might consider (or already are) taking a pragmatist turn in their work. And, it should strengthen the empirical foundations of pragmatism as an alternative (non-teleological) way to understand social action.     

The Foster–Greer–Thorbecke (FGT) poverty measures: 25 years later

Twenty-five years ago, the FGT class of decomposable poverty measures was introduced in Foster, Greer, and Thorbecke (Econometrica 52:761–776, 1984). The present study provides a retrospective view of the FGT paper and the subsequent literature, as well as a brief discussion of future directions. We identify three categories of contributions: to measurement, to axiomatics, and to application. A representative subset of the literature generated by the FGT methodology is discussed and grouped according to this taxonomy. We show how the FGT paper has played a central role in several thriving literatures and has contributed to the design, implementation, and evaluation of prominent development programs; the breadth of its impact is evidenced by the many topics beyond poverty to which its methodology has been applied. We conclude with a selection of prospective research topics.     

The Stackelberg minimum spanning tree game on planar and bounded-treewidth graphs

The Stackelberg Minimum Spanning Tree Game is a two-level combinatorial pricing problem played on a graph representing a network. Its edges are colored either red or blue, and the red edges have a given fixed cost, representing the competitor’s prices. The first player chooses an assignment of prices to the blue edges, and the second player then buys the cheapest spanning tree, using any combination of red and blue edges. The goal of the first player is to maximize the total price of purchased blue edges. We study this problem in the cases of planar and bounded-treewidth graphs. We show that the problem is NP-hard on planar graphs but can be solved in polynomial time on graphs of bounded treewidth.     

Multi-Dimensional Analysis of International Social Indicators – Education,Economy, Media and Demography

Using multi-dimensional analysis methods, it ispossible to uncover a structure representing therelationship between multiple internationaleducational, social and economic indicators. In thisstudy, we applied Smallest Space Analysis to datacollected by international agencies for 138 countriesand 20 indicators. A preliminary structure was foundand replicated for different data sets. Thisstructural interrelationship shows that these variousindicators are part of a larger field called welfare.This structure can be further expanded and refined tobe used as a tool for indicator selection.     

Are women over-represented in dead-end jobs? A Swedish study using empirically derived measures of dead-end jobs

It has been claimed that women experience fewer career opportunities than men do mainly because they are over-represented in ‘Dead-end Jobs’ (DEJs). Using Swedish panel data covering 1.1 million employees with the same employer in 1999 and 2003, measures of DEJ are empirically derived from analyses of wage mobility. The results indicate that women are over-represented in DEJs, especially in the public sector. The findings are interesting from (a) a methodological viewpoint, as it is indicated that the career opportunities associated with occupations can be indicated using one measure for both men and women, (b) the glass ceiling perspective, which arguably under-emphasizes gender inequality in relation to low positions, and (c) a class perspective, which basically ignores gender and sector in explaining career chances.