The evolution of the People's Republic of China's Latin American policy from Mao to Deng consists of four stages: (1) communist internationalism, (2) revolutionary policy, (3) government contacts and peaceful co-existence, and (4) independent and open policy. Besides explaining the meaning of each policy and its execution, this study identifies the key elements--domestic and external--which characterize the policy evolution, and compares those elements in an explication of why Sino-Latin American relations under Deng's regime appear more active than those of Mao's regime. The policies of Mao and Deng differ in the greater emphasis of Deng on the content of government contacts and his greater concern with economic relations, in contrast to the political motivation of Mao.

This dissertation surveys electoral change in Great Britain during the period between 1979 and 1996. It analyzes the long-term factors and the short-term dynamics underlying the evolution of three aspects of the electorate: party identification, voting intentions and party support in inter-election periods. Drawing on cross-sectional and panel data from the British Election Studies and public opinion polls, I investigate the impacts of long-term socialization and short-term perceptions on voters' political decisions. I hypothesize that, over the last four elections, perceptual factors such as evaluations of party leaders and issues, particularly economic concerns, emerged as the major forces that account for the volatility in electoral behavior in Britain. Accordingly, this study is divided into three sections: Part I probes into the evolution in party identification across age cohorts and social classes as illustrated in trends in partisanship. Part II focuses on changes in voting intentions as affected by perceptual factors and party identification. Part III investigates the public's support for governing parties by analyzing the dynamics of aggregate party support during inter-election periods.

This dissertation investigates the consequences of fractional dynamics for political modeling. Using Monte Carlo analyses, Chapters II and III investigate the threats to statistical inference posed by including fractionally integrated variables in bivariate and multivariate regressions. Fractional differencing is the most appropriate tool to guard against spurious regressions and other threats to inference. Using fractional differencing, multivariate models of British politics are developed in Chapter IV to compare competing theories regarding which subjective measure of economic evaluations best predicts support levels for the governing party; egocentric measures outperform sociotropic measures. The concept of fractional cointegration is discussed and the value of fractionally integrated error correction mechanisms are both discussed and demonstrated in models of Conservative party support. In Chapter V models of presidential approval in the United States are reconfigured in light of the possibilities of fractionally integrated variables. In both the British and American case accounting for the fractional character of all variables allows the development of more accurate multivariate models.