This research incorporates a decision-making theory which defines the linkage between the public, the media, the president and the Congress. Specifically, I argue that the public holds widely shared domestic and international goals and responds to a number of external cues provided by the president and the media in its evaluation of presidential policies. Although most studies examine overall presidential popularity, there are important differences in the public's evaluations of the president's handling of foreign and domestic policies. Additionally, I am concerned with how the Congress responds to these specific policy evaluations, the president's public activities, and the electoral policy goals of its members when determining whether or not to support the president. Finally, I link together the theoretical assumptions, to examine the influence of varying levels of support among the Congress and the public, and the president's own personal power goals on the type, quantity, and the quality of activities the president will choose. Ultimately, the primary focus of this dissertation is on the sources and consequences of presidential support and the influence of such support on presidential decision-making.

This study attempts to explore the factors that contributed to the rise and fall of military regimes in the Sudan from independence in 1956 to 1989. Further, the study tries to identify the factors that led to the collapse of either or both civilian and military regimes. Most of the studies on military politics have focused their research on either military coups or, more recently, on military withdrawal from politics. This work tries to synthesize the study of military coups and military withdrawal from politics into a single theoretical framework.

This study is an attempt to contribute to the emerging theoretical literature on state repression. A time-series model was developed to test the hypothesis that state violence in Argentina and Chile is largely a function of four internal political factors and their interactions: 1) the inertial influence of past restrictive policies on the formulation of current policies, 2) the annual incidence of political protest demonstrations, 3) the perceived effectiveness of repressive measures on unrest, 4) and the institutionalization of military rule.

Two recent developments dominate the political economy of Sub Saharan Africa -- the adoption of economic structural adjustment reforms and the emergence of pressures for the democratization of the political process. Economic reform measures have spawned civil society, made up of anti-authoritarian, anti-statist, non-governmental organizations, that demand political liberalization. This study is an attempt to analyze, theoretically and quantitatively, the unanticipated association between these developments. Democratic institutions inherited by Sub Saharan Africa at independence were subverted either through military coups or by the abuse and misuse of the institutions by an inordinately ambitious political elite. Thus, about a decade into independence more than three quarters of the sub continent virtually came under authoritarian rule. Contemporaneously there was a decline in the economies of these countries, forcing them to borrow from international financial institutions, in order to offset their balance of payment difficulties. By the mid-1980s most of Sub Saharan Africa had also instituted structural adjustment programs. Using a pooled cross-sectional time series model of analysis, data gathered from Sub Saharan African countries are analysed to test the explanatory power of the three extant contending theories of development: classical, dependency, and neoliberal. Then, most importantly, the analysis examines the relationship between …