rash of riots in U. S. cities during nineteen-sixties has prompted at least two parallel and somewhat related questions. Initially many observers have been led to ask: Why do some incidents provoke outbreak of violence while others do not? An equally significant inquiry that has received less attention might be phrased as follows: Why do some municipal governments respond to riots by attempting to reduce grievances that may have spawned violence, while others take little or no ameliorative action? latter query will form primary focus of this research note. capacity of political structures to resolve local complaints may be both a contributing factor and a product of urban violence. In an analysis of underlying conditions of 76 American race riots between 1913 and i963, Lieberson and Silverman commented on the com, munity failure to see riot in terms of institutional malfunctioning or a racial difficulty which is not met-and perhaps cannot be-by existing social institutions.1 Subsequent research by Bloombaum, which attempted to employ multiple scalogram analysis to establish dimensions in their data, also yielded results that were generally consistent with theory of institutional breakdown held by Lieberson and Silverman.2 extent to which local governments are able to respond adequately to public dissatisfaction, therefore, may play a crucial role in eruption of racial violence. Riots also may have a major impact on performance of urban governments. Greenstone and Peterson, for example, found a direct correlation between dispersion of political power and use of federal anti-poverty funds in nation's four largest cities before outbreak of civil disorder. After Watts riot of 1965, however, Los Angeles, which previously had received least OEO grants per poverty-stricken family, suddenly soared to top of list in Der * Harlan Hahn is Associate Professor of Political Science at University of California, Riverside, and author of forthcoming books on police and on Urban-Rural Conflict: Politics of Change. 1 Stanley Lieberson and Arnold R. Silverman, The Precipitants and Underlying Conditions of Race Riots, American Sociological Review, Vol. 31, 1965, p. 898. 2 Milton Bloombaum, The Conditions Underlying Race Riots as Portrayed by Multidimensional Scalogram Analysis: A Reanalysis of Lieberson and Silverman's Data, American Sociological Review, Vol. 33, 1968, p. 90.