Group Size, Group Heterogeneity, and Voting Rules: An Application of the Buchanan-Tullock Model to the European Union

In The Calculus of Consent, Buchanan and Tullock develop a theory of voting rules in which the optimal rule is determined by minimizing the sum of voters' external and decision costs. Other researchers have extended the Buchanan-Tullock model to include the effects of group size and heterogeneity on external and decision costs and, subsequently, on the optimal voting rule. Despite the prominence of the Buchanan-Tullock model in the constitutional, legal, and public-choice literature, their theory has not (to our knowledge) been tested. In this paper we test the Buchanan-Tullock model by examining the establishment and evolution of voting rules in the European Union. Over the past four decades, the European Union has experienced significant changes in number and heterogeneity, and we interpret the general movement towards, and call for, less inclusive voting rules as support for Buchanan and Tullock's original theory.     

Family Drug Court,Targeted Parent Training and Family Reunification: Did this Enhanced Service Strategy Make A Difference?

This article reports findings from an evaluation of reunification outcomes for children and families who participated in a family drug court (FDC) that incorporated the use of two innovative evidence‐based parenting programs. In addition to comprehensive FDC services, families participated in the Strengthening Families Program and Celebrating Families!^TM programs in a sequential format. Data analyses were conducted on a sample of 214 children whose child welfare cases were adjudicated through the FDC and 418 matched comparison cases. Entry‐cohort survival analysis results indicated that families receiving FDC services were more than twice as likely to reunify in a 45 month observation window.     

Family and Peer Relationships in a Residential Youth Sample: Exploring Unique,Non-Linear,and Interactive Associations with Depressive Symptoms and Suicide Risk

Journal of Youth and Adolescence - Close relationships are consequential for youth depressive symptoms and suicide risk, but nuanced research examining intersecting factors is needed to improve...