Quartz | Political protests in the first days of the Trump administration generate new interest in a study by Daniel Shoag (Ph.D.'11), Associate Professor at the Harvard Kennedy School, and colleagues Andreas Madestam (Stockholm University), Stan Veuger (American Enterprise Institute), and David Yanagizawa-Drott (University of Zurich). The study, published in the Quarterly Journal of Economics in November 2013, seeks to determine whether protests actually cause political change, or whether they are "merely symptoms of underlying shifts in policy preferences."
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Also cited: Theda Skocpol and Vanessa Williamson's book, The Tea Party and the Remaking of Republican Conservatism (Oxford University Press, 2012). Theda Skocpol is the Victor S. Thomas Professor of Governmant and Sociology at Harvard. Vanessa S. Williamson (Ph.D. '15) is a fellow in Governance Studies at the Brookings Institution.