Disclaimer. Don't rely on these old notes in lieu of reading the literature, but they can jog your memory. As a grad student long ago, my peers and I collaborated to write and exchange summaries of political science research. I posted them to a wiki-style website. "Wikisum" is now dead but archived here. I cannot vouch for these notes' accuracy, nor can I even say who wrote them. If you have more recent summaries to add to this collection, send them my way I guess. Sorry for the ads; they cover the costs of keeping this online.
Mainwaring and Shugart. 1997. Presidentialism and Democracy in Latin America. Cambridge: Cambridge University Press.
Generally, a reiteration of the arguments in Shugart and Carey (1992), with responses to objections made by Linz (1994) and Stepan and Skach (1994) in "The Failure of Presidential Democracy."
(1) Constitutional/legislative provisions regarding the president, elections, and party laws determine (2) the president's formal powers and the nature of party system, influencing (3) the president's ability to implement his agenda (his "strength"). In this process, the timing of assembly elections relative to executive elections strongly affects the number of political parties and their internal discipline.
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