Applications and Implementation: AN EXPERIMENTAL COMPARISON OF CELLULAR (GROUP TECHNOLOGY) LAYOUT WITH PROCESS LAYOUT

This study compares different strategies for arranging machines in a facility. Computer simulation of two different machine shops was used to compare process layout (the arrangement of groups of machines where the machines within a group are interchangeable) to cellular layout designed using group technology concepts (the use of manufacturing cells where each cell contains different types of machines dedicated to the production of similar parts). Four layout strategies, including process layout, cellular layout, and two hybrid layouts, were compared in two machine-shop models. The shops that used cellular layouts had shorter setup times, lower machine utilization, and shorter distances traveled, on average. The shops with process layout, however, had better performance on queue-related statistics such as work-in-process inventory level and average flow time. This suggests that a well-organized traditional job shop may be able to achieve overall performance that at least is comparable to that of the same shop using cellular (group technology) layout.     

Investments in Marriage and Cohabitation: The Role of Legal and Interpersonal Commitment

Cohabiters have been shown to invest less in their relationship than married couples. This study investigated the role of legal and interpersonal commitment by examining heterogeneity within marital and cohabiting unions. Going beyond the dichotomy of cohabitation versus marriage, different union types were distinguished by their level of legal and interpersonal commitment, followed by an assessment of their association with joint investments (specialization, having children together, purchasing a home). Using panel data from The Netherlands (N =2,362), the authors found considerable heterogeneity within marital and cohabiting unions. Joint investments increased as interpersonal commitment increased, with cohabiters without marriage plans investing the least and couples who directly married without prior cohabitation investing the most. The relationship between investments and legal union types was less straightforward and often challenged expectations, prompting the authors to elaborate on alternative explanations for their findings.     

Race, crime, and Republican strength: Minority politics in the post-civil rights era

This investigation assesses the relationships between racial threat and partisan dominance in state legislatures with tests of interactive hypotheses. The findings show that historically contingent expectations derived from racial threat theory, Republican law and order campaign appeals, and fundamentalist strength account for Republican strength in the legislatures. Two-way fixed-effects estimates based on pooled time-series analyses of 799 state-years in the post-civil rights era show that the percentage of Republicans in the state legislatures grew after increases in African American presence and the violent crime rates. The combined effects of a growth in African American and fundamentalist populations also account for increased Republican seats in these bodies. Statements by Republican campaign officials on how they deliberately used mass resentments against minorities to gain votes provide evidence about the intervening links between minority threat, the menace posed by high violent crime rates, and increased Republican strength in the state legislatures.     

On the Determinants of Class Legislation: an Ecological Study of Political Struggles Between Workers and Management*

The state controls many matters of conflict between labor and management. This study attempts to identify the social conditions that lead to laws which favor either side in their ongoing struggle for influence. Using a cross-sectional ecological design I found that political systems with more blacks were least likely to have public policies in the interest of the working class. Other relevant factors which had less consistent effects were the type of enterprise and the level of resources in an area. Generally, the results are consistent with theories that racial antagonisms undermine the political efforts of workers.     

Morality Politics vs. Identity Politics: Framing Processes and Competition Among Christian Right and Gay Social Movement Organizations

This paper applies a social movement organization framing analysis to conflicts between gay-rights and Christian Right groups over issues of lesbian, gay, and bisexual inclusions in public education. As groups representing each side entered this new arena of debate over gay rights, they applied strategies they had used in other arenas. Both sides have pursued inflexible, polarizing strategies that target their constituencies and have relinquished the opportunity to offer new and creative understanding of their positions and to reach a potential new audience. This shows how opposing frames can become mutually reinforcing constraints.