政治與經濟的關係究竟是如何？本文研究目的在探討美國總體經濟對政黨支持的影響；換言之，美國政府經濟績效的表現是否會影響選民的政黨支持？本研究建構美國政黨支持模型的六項迴歸方程式，但是六項迴歸方程式都未達顯著水準。所以無法推翻虛無假設：經濟情勢不能影響美國總統大選的政黨支持率，本項研究發現支持Kramer(1971: 141)的主張：“美國總統大選實質上是不理會經濟的情勢”。

What relation is between politic and economic? The research question of this paper is the macroeconomic impact on partisanship in U.S.A.; i.e., Whether the economic performances of the American government could influence citizens' partisanships or not? Six regression equations for the partisanship model have been constructed in this study. Unfortunately, none of them reach the significant level. So, we fail to reject the null hypothesis: the economic conditions cannot influence the voting rates for political parties in American Presidential elections. This research finding is consistent with Kramer's (1971: 141) declaration: "Presidential elections are substantially less responsive to economic conditions."