Democracy in Developing Countries, co-edited with Juan J. Linz and Seymour Martin Lipset, (Lynne Rienner, 1988, 2nd ed., 1999).
Politics in Developing Countries: Comparing Experiences with Democracy, co-edited with Juan J. Linz and Seymour Martin Lipset, (Lynne Rienner, 1990, 2nd ed., 1995).
Reexamining Democracy: Essays in Honor of Seymour Martin Lipset, co-edited with Gary Marks, (Sage, 1992).
Capitalism, Socialism, and Democracy Revisited, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1993).
The Global Resurgence of Democracy, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1993, 2nd ed., 1996).
Israeli Democracy under Stress, co-edited with Ehud Sprinzak, (Lynne Rienner, 1993).
Nationalism, Ethnic Conflict, and Democracy, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1994).
Economic Reform and Democracy, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1995).
Civil-military Relations and Democracy, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1996).
Consolidating the Third Wave Democracies, co-edited with , (Johns Hopkins University Press, 1997).
Transition without End: Nigerian Politics and Civil Society under Babangida, co-edited with Anthony Kirk-Greene and Oyeleye Oyediran, (Lynne Rienner, 1997).
Democracy in East Asia, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1998).
Democratization in Africa, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 1999).
The Self-restraining State: Power and Accountability in New Democracies, co-edited with Andreas Schedler and Marc F. Plattner, (Lynne Rienner, 1999).
Institutional Reform and Democratic Consolidation in Korea, co-edited with Doh Chull Shin, (Hoover Institution Press, 2000).
Consolidating Democracy in South Korea, co-edited with Byung-Kook Kim, (Lynne Rienner, 2000).
Elections and Democracy in Greater China, co-edited with Ramon H. Myers, (Oxford University Press, 2001).
Political Parties and Democracy, co-edited with Richard Gunther, (Johns Hopkins University Press, 2001).
The Global Divergence of Democracies, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 2001).
Democracy after Communism, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 2002).
Islam and Democracy in the Middle East, co-edited with Marc F. Plattner and Daniel Brumberg, (Johns Hopkins University Press, 2003).
Nigeria's Struggle for Democracy and Good Governance: A Festschrift for Oyeleye Oyediran, co-edited with Adigun A.B. Agbaje and Ebere Onwudiwe, (Ibadan University Press, 2004).
Assessing the Quality of Democracy, co-edited with Leonardo Morlino, (Johns Hopkins University Press, 2005).
World Religions and Democracy, co-edited with Marc F. Plattner and Philip J. Costopoulos, (Johns Hopkins Univ. Press, 2005.
Electoral Systems and Democracy, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 2006).
The State of India's Democracy, co-edited with Sumit Ganguly and Marc F. Plattner, (Johns Hopkins University Press, 2007).
How People View Democracy, co-edited with Marc F. Plattner, (Johns Hopkins University Press, 2008).
Latin America's Struggle for Democracy, co-edited with Marc F. Plattner and Diego Abente Brun, (Johns Hopkins University Press, 2008).
Political Change in China: Comparisons with Taiwan, co-edited with Bruce Gilley, (Lynne Rienner, 2008).