Riggs and his associates is a rather devastating indictment. Though demonstrating a concern to present balanced and qualified conclusions from their pemsal of the relevant literature, they summarize their assessment in the following statement: Behavioral research has probably been the most disappointing in the area of its central concern, that of theory- building. The grand theories tend to be heuristic in nature, divorced from the essential data base; and the best-supported proposi­ tions have the natrowest theoretical significance. Despite its aims and pretensions, the approach has not yet produced a coherent set of explanatory propositions to bring order or scientific exactness to the study of international organization or any substantial segment of it (Riggs et al. , 1970: 230).