Strengthening Advocacy Coalitions: Lessons for Structure,Engagement, and Effectiveness from an IPV Coalition

Social workers who are active in the area of intimate partner violence (IPV) must understand how to structure their coalitions for maximum effectiveness. The purpose of this study was to examine the communication strategies, organizational structures, and relationships between one IPV coalition and its membership to glean recommendations for the field. The authors purposively sampled ten subjects from one state, including staff from the state IPV advocacy coalition (N = 2) and staff from the state coalition's member agencies (N = 8). After completing phone interviews with the subjects, the authors utilized directed content analysis to derive themes from the data. Study findings point to different perceptions regarding access to the coalition, flow of information to and from the coalition, the shaping of the IPV movement, and coalition structure. These differences occurred between executive versus direct practice staff, and nearby versus distant member agencies. Executives and those in nearby regions were more likely to describe a reciprocal relationship between member agencies and the coalition than were direct practice staff or those working in distant agencies. Future research should address the benefits and drawbacks of coalitions cultivating centralized versus decentralized relationships with member agencies, particularly in terms of impact on member agency social service delivery.     

The education effect on population health: a reassessment

Demographic research frequently reports consistent and significant associations between formal educational attainment and a range of health risks such as smoking, drug abuse, and accidents, as well as the contraction of many diseases, and health outcomes such as mortality—almost all indicating the same conclusion: better-educated individuals are healthier and live longer. Despite the substantial reporting of a robust education effect, there is inadequate appreciation of its independent influence and role as a causal agent. To address the effect of education on health in general, three contributions are provided: 1) a macro-level summary of the dimensions of the worldwide educational revolution and a reassessment of its causal role in the health of individuals and in the demographic health transition are carried out; 2) a meta-analysis of methodologically sophisticated studies of the effect of educational attainment on all-cause mortality is conducted to establish the independence and robustness of the education effect on health; and 3) a schooling-cognition hypothesis about the influence of education as a powerful determinant of health is developed in light of new multidisciplinary cognitive research.     

Non-central bivariate beta distribution

Let U, V and W be independent random variables, U and V having a gamma distribution with respective shape parameters a and b, and W having a non-central gamma distribution with shape and non-centrality parameters c and δ, respectively. Define X = U/(U + W) and Y = V/(V + W). Clearly, X and Y are correlated each having a non-central beta type 1 distribution, X ~ NCB1 (a,c;d){X \sim {\rm NCB1} (a,c;\delta)} and Y ~ NCB1 (b,c;d){Y \sim {\rm NCB1} (b,c;\delta)} . In this article we derive the joint probability density function of X and Y and study its properties.     

Have cash transfers succeeded in reaching the poor in Latin America and the Caribbean?

We present original estimates of the quality of targeting of conditional cash transfer (CCT) and non‐contributory pension (NCP) programmes in Latin America and the Caribbean. Our contribution is novel because we use both national and international poverty lines; provide differentiated estimates for urban and rural areas; and compare the CCT and NCP programmes. We show that leakage to the non‐poor coexists with pervasive under‐coverage of all poor, including the extreme poor. On average, the CCTs cover only 50.5% of the extreme poor in households with children under 18 years of age. Similarly, the NCPs cover only 50.9% of the extreme poor in households with elderly members who do not receive a contributory pension. At the same time, 40.4% of CCT beneficiaries and 50.1% of NCP beneficiaries are not poor, highlighting the potential need for re‐targeting and re‐certification. In most countries, re‐targeting could produce a substantial double benefit in terms of poverty reduction and fiscal savings.     

Some Comments Regarding the Synthetic Chart

The steady-state average run length (ARL) is a function of the in-control probabilities of being in each nonabsorbing state. Davis and Woodall (2002) tabulated values that are significantly smaller than the steady-state ARLs, because they used the out-of-control probabilities. The synthetic chart signals when a second sample point falls beyond the control limits, no matter whether one of them falls above the centerline and the other falls below it. The side-sensitive version of the synthetic chart does not signal when the points beyond the control limits are on opposite sides. With this rule, the chart detects mean changes more quickly.     

Chilean Feminism(s) in the 1990s Paradoxes of an Unfinished Transition

This article discusses the changes experienced by the feminist movement in post- transition Chile from the perspective of two specific issues. First, the fundamental "paradox' facing this movement today, that is, its relative success in "gender mainstreaming' together with feminism's increasing weakness as a political actor. And second, the relevance of external and internal factors in transforming feminism and the role each has played in its current situation. The article attempts to answer some of the queries posed by this two-fold process: What explains the feminist movement's absence from public spheres? Why was the movement's previous creative force not translated into renewed political power in the democratic context? What factors have contributed towards the lack of articulation among actors who had been able to form a visible movement for the rest of society in the past? And, to what extent have structural transformations conditioned the changes experienced by feminism? The article is structured in three sections. The first analyses some of the social and political factors relevant for the reconfiguration of the movement in the 1990s through an analysis of the political system. The second concentrates on the object of study itself, that is, the feminist movement. It seeks to reconstruct its trajectory, origins and development, the changes it has undergone throughout the transition process and, especially, its present characteristics. Finally, some concluding remarks are provided.     

A New Chart for Monitoring the Covariance Matrix of Bivariate Processes

In this article we consider a control chart based on the sample variances of two quality characteristics. The points plotted on the chart correspond to the maximum value of these two statistics. The main reason to consider the proposed chart instead of the generalized variance | S | chart is its better diagnostic feature, that is, with the new chart it is easier to relate an out-of-control signal to the variables whose parameters have moved away from their in-control values. We study the control chart efficiency considering different shifts in the covariance matrix. In this way, we obtain the average run length (ARL) that measures the effectiveness of a control chart in detecting process shifts. The proposed chart always detects process disturbances faster than the generalized variance | S | chart. The same is observed when the size of the samples is variable, except in a few cases in which the size of the samples switches between small size and very large size.     

Risk analysis in the brazilian stock market: copula-APARCH modeling for value-at-risk

Risk management of stock portfolios is a fundamental problem for the financial analysis since it indicates the potential losses of an investment at any given time. The objective of this study is to use bivariate static conditional copulas to quantify the dependence structure and to estimate the risk measure Value-at-Risk (VaR). There were selected stocks that have been performing outstandingly on the Brazilian Stock Exchange to compose pairs trading portfolios (B3, Gerdau, Magazine Luiza, and Petrobras). Due to the flexibility that this methodology offers in the construction of multivariate distributions and risk aggregation in finance, we used the copula-APARCH approach with the Normal, T-student, and Joe-Clayton copula functions. In most scenarios, the results showed a pattern of dependence at the extremes. Moreover, the copula form seems not to be relevant for VaR estimation, since in most portfolios the appropriate copulas lead to significant VaR estimates. It has found that the best models fitted provided conservative risk measures, estimates at 5% and 1%, in a scenario more aggressive.