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forthcoming. “Protest and Repression in Democracies and Autocracies: Europe, Iran, Thailand, and the Middle East, 2010-2011.” In Collective Violence, eds. Seraphim Sepheriades and Hank Johnston. Ashgate.
“Bringing Regimes Back In: Explaining Success and Failure in the Middle East Revolts of 2011,” in The Arab Revolution of 2011: A Comparative Perspective (edited by Said Arjomand). Albany, NY: State University of New York Press: 53-74, 2015.
“Simplicity vs. Complexity in the Analysis of Social Movements.” In Breaking Down the State: Protestors Engaged with Authorities. Jan Willem Duyvendak and James M. Jasper, eds. Amsterdam: Amsterdam University Press: 225-238, 2015.
“The Impact of Global Demographic Changes on the International Security Environment” (with Monty G. Marshall and Hilton Root.), in Managing Conflict in a World Adrift, Chester Crocker, Fen Hampson and Pamela Aall, eds. U.S. Institute of Peace, Washington D.C.: 241-254, 2015.
“One effect to rule them all? A comment on climate and conflict.” With H. Buhaug, J. Nordkvelle, T. Bernauer, T. Böhmelt, M. Brzoska, J. W. Busby, A. Ciccone, H. Fjelde, E. Gartzke, N. P. Gleditsch, H. Hegre, H. Holtermann,V. Koubi, J. S. A. Link, P. M. Link, P. Lujala, J. O′Loughlin, C. Raleigh, J. Scheffran, J. Schilling, T. G. Smith, O. M. Theisen, R. S. J. Tol, H. Urdal, and N. von Uexkull. Climatic Change, 127: 391-397, 2015.
“Demography and Social Movements.” In The Oxford Handbook of Social Movements, Mario Diani and Donatella della Porta, eds. Oxford: Oxford University Press, 2014.
“Demographic Growth in Dangerous Places: Concentrating Conflict Risk” (with Monty G. Marshall and Hilton Root), International Area Studies Review, 17: 120-133, 2014.
“Forecasting Stability or Retreat in Emerging Democracies” (with Snigdha Dewal and Michael Volpe). Democracy and Governance, 1(1): 32-47, 2013.
“The Role of Youth in Rebellion and Revolution.” (edited by Jay H. E. Ellens) In Winning Revolutions: The Psychology of Successful Revolts for Freedom, Fairness, and Rights, 2 (Chapter 2), Santa Barbara, CA: ABC-Clio, 2013.
“War, Capital, and Wages: A New Economic Theory of the ‘Great Divergence.’ International Journal of Asian Studies, 10(1): 73-83, 2013.