Technological change, campaign spending and polarization
构建了一个内生平台与竞选支出的选举竞争模型，其中选民分为易受影响型和意识形态型，且划分取决于政党策略。模型解释了技术进步如何同时推高竞选支出与政治极化。
We present a model of electoral competition with endogenous platforms and campaign spending where the division of voters between impressionable and ideological is also endogenous and depends on parties’ strategic platform choices. Our approach results in a tractable model that provides interesting comparative statics on the effect of recent technological advancements. For instance, we can accommodate a new justification behind the well-documented simultaneous increase in campaign spending and polarization: an increase in the effectiveness of electoral advertising, or a decrease in the electorate’s political awareness, surely increases polarization and may also increase campaign spending.