The warlord as arbitrageur

This article seeks to generate a more precise understanding of the emergence and perpetuation of warlords. First, it offers a simple, intuitive, and empirically grounded conceptual definition of warlordism. Second, it argues that the primary factor contributing to the success of warlords is the ability to take advantage of price differentials for political, economic, and cultural goods across terrains—in a word, to arbitrage. Third, it illustrates this model with a case study of Khun Sa (1934–2007), the self-proclaimed Shan freedom-fighter and “king” of Burma’s heroin trade. Finally, it suggests that the international community rethink its commitment to the norm of sovereignty in order to combat the proliferation of such non-state violence-wielders.     

The meta-analytic framework for the evaluation of surrogate endpoints in clinical trials

For a number of reasons, surrogate endpoints are considered instead of the so-called true endpoint in clinical studies, especially when such endpoints can be measured earlier, and/or with less burden for patient and experimenter. Surrogate endpoints may occur more frequently than their standard counterparts. For these reasons, it is not surprising that the use of surrogate endpoints in clinical practice is increasing.     

Longitudinal Patterns of Nonresident Fathers’ Involvement: The Role of Resources and Relations

Using data from the Fragile Families and Child Wellbeing Study, we examined patterns of nonresident father involvement 1 and 3 years after a nonmarital birth (N = 893). Cluster analyses were used to determine patterns of involvement across different father behaviors. About half of fathers displayed low involvement when children were 1 and 3 years old, one fourth of fathers maintained high involvement, and equal remaining proportions increased or decreased involvement over time. Multinomial logistic analyses indicated that better relationships between parents were associated with consistently high versus low involvement. Better relationships with each others’ extended family also predicted remaining highly involved and increasing involvement over time. Parents’ romantic relationship status was closely associated with patterns of involvement.     

Health behaviors of culturally diverse inner-city community college students

ABSTRACT

Objective: To determine the prevalence of risk behaviors related to cigarette use, alcohol use, nutrition, physical fitness, and sexual behavior. Participants: Participants were 1,075 students attending an urban community college during the Spring 2012 semester. Methods: Data were collected in randomly selected classes using the American College Health Association National College Health Assessment II (ACHA-NCHA II) paper survey and analyzed using Statistical Package for the Social Sciences (SPSS) version 22 for frequencies and chi-square test of independence. Results: The sample population reported poor diet, low rates of physical activity, high rates of overweight/obesity, low rates of condom use for vaginal sex, multiple sexual partners, and unintentional pregnancy. Protective health behaviors included low rates of cigarette smoking and alcohol use, high rates of condoms use for anal sex, and high rates of human immunodeficiency virus (HIV) testing. Conclusion: Students are at high risk for health problems related to poor diet, lack of exercise, and risky sexual behaviors. Additional research is recommended to determine the most effective intervention strategies.     

The Inclusion of Minority Groups in Clinical Trials: Problems of Under Representation and Under Reporting of Data

Objective: To evaluate the representation of minority groups in randomized control trials (RCTs), and the frequency with which this information is reported.

Study Design: Reviewers collected data on the racial/ethnic composition of study samples from all RCTs published in six leading medical journals in 1999.

Results: Of the 280 RCTs, most (204, 71.3%) provided no information on the race/ethnicity of participants. Of the 89 U.S.-based RCTs, 50 (56.1%) reported their minority distribution. Relative to other trials, those funded by the National Institute of Health (NIH) (n = 52) were more likely to report race/ethnicity data (55.8% vs. 23.7%; χ² = 20.9, p ≤ 0.001) and to include nonwhite participants (13.5% vs. 12.5%; χ² = 22.7, p ≤ 0.001).

Conclusion: Minority groups are currently under-represented in clinical trials. Information on the race and ethnicity of clinical trial participants is currently underreported in six leading medical journals. Reporting of minority group information was significantly better only in NIH funded trials, which also were more likely to include nonwhite participants. This suggests that mandatory reporting policies may have a positive effect on both reporting and representation.     

MODELING THE ECONOMIC INTERACTION OF AGENTS WITH DIVERSE ABILITIES TO RECOGNIZE EQUILIBRIUM PATTERNS

We model differences among agents in their ability to recognize temporal patterns of prices. Using the concept of DeBruijn sequences in two dynamic models of markets, we demonstrate the existence of equilibria in which prices fluctuate in a pattern that is independent of the fundamentals and that can be recognized only by the more competent agents. (JEL: C7, D4, S477)     

Apprehensive about retirement: Women,life transitions,and relationships

Understanding women’s attitudes toward retirement is crucial for being able to help women adjust to this transition. The present study uses interviews and questionnaires to understand retirement ambivalence and the role that close relationships play in women’s retirement experiences. Findings indicate that women have mixed feelings about retirement; they are both excited and fearful. They particularly enjoy the freedom and control this transition brings but are also moderately fearful of retirement, especially about shifting relationships. A better-quality relationship correlates with greater satisfaction and less fear. Such insights can be used to help women prepare for this major transition.