Brazil Shown to Be Different: How Party Labels Shape Policy Views

In Brazil's relatively new democracy with a fragmented party system, how do party labels affect policy attitudes? This paper explores that question through two survey experiments conducted on both nationally representative and Facebook-recruited samples. The findings show these main-party identifiers respond strongly to both in-group and out-group cues, while nonpartisans are unaffected by partisan messaging. These results suggest party identification plays a powerful role even in environments where parties appear less central.