Vanderbilt Research on Conflict and Collective Action (ROCCA) Lab | 309 followers on LinkedIn. ROCCA produces political science research on conflict and collective action problems within international relations. | The Research on Conflict and Collective Action (ROCCA) Lab opened at Vanderbilt University in January 2019. The ROCCA Lab is a partnership between undergraduate students, faculty members, and their assisting graduate students to produce critical, high-quality, social science research on political violence and collective action problems, primarily stemming from International Relations (IR). A central aspect of the ROCCA Lab is the course component which many of the undergraduate researchers enroll in.