A dynamic test of the marginality hypothesis

The marginality hypothesis is an attempt to relate the voting margins of members of Congress to their subsequent legislative behavior. A major corollary of the hypothesis is that members of Congress with small victory margins will be more responsive to constituents than those with large victory margins. This has been assumed to mean that electorally secure representatives can afford to be more loyal to their congressional parties, since they have less cause to worry about their chances for reelection. Previous empirical studies have produced mixed results. We ask the question in a different way: Do changes in marginality affect party voting within Congress? If so, major shifts in the electorate potentially can have a fundamental impact on the behavior of Congress itself. We find that this is not true. Electoral margin is simply not related to party loyalty.     

Trade and development policies in Colombia: Export promotion and outward orientation, 1967–1992

As developing democracies implement programs of economic adjustment and trade liberalization, we need to examine the relationship between the state and society in the making of foreign economic policies. This article examines trade and development policies in Colombia, one of Latin America's more institutionalized democracies. Colombia was one of the first countries in Latin America to begin a major reorientation away from full dependence on ISI as a strategy of development. The research shows that domestic political institutions and actors have had a decisive impact on the character and direction of foreign economic policies. The study also illustrates how state capacity for economic management is enhanced by bureaucratic insulation and institutional reform. Carlos E. Juárez is a Ph.D. candidate in the Department of Political Science at the University of California, Los Angeles. His research focuses on the politics of trade liberalization in Latin America, government-business relations in developing democracies, and comparative political economy. He was a visiting researcher and lecturer at theUniversidad de los Andes in Bogotá, Colombia from 1991–1992. For 1993–1994 he will be a visiting research fellow with the Center for U.S.-Mexican Studies at the University of California, San Diego.     

ABH antigen typing in bone tissue

Results obtained from the ABH grouping of bone tissues by the absorption-elution procedure and by a recently described two-dimensional absorption-inhibition procedure are reported. Neither the elution nor the inhibition procedure alone yielded uniformly correct results. A combination procedure consisting of the use of both absorption-elution and two-dimensional absorption-inhibition is proposed for bone ABH grouping. When elution and inhibition were used in combination, specimens yielding concordant results with both techniques were correctly grouped.