Areas of expertise: Medical ethics, public health ethics, social and political philosophy
Areas of expertise: Positive political theory, social choice theory, game theory.
Areas of expertise: American politics, history, institutions
Areas of expertise: International relations, conflict
Areas of expertise: Comparative politics
Areas of expertise: Graduate education, quality of graduate programs, Social Security, Social Security alternatives
Areas of expertise: Comparative politics, political parties, party systems, elite and mass political behavior, elections in comparative perspective, and European politics
Areas of expertise: Voting behavior, legislative term limits, civic education
Areas of expertise: Campaign finance, influence of money on the political process, term limits.
Areas of expertise: Campaign finance, airline safety, airline security, government spending and budgets, judicial appointments, and legislative rules
Areas of expertise: American politics, environmental politics, political economy, and public policy
Areas of expertise: African-American and minority politics, political representation, voting rights and redistricting, legislative politics, and political participation
Areas of expertise: Presidential rhetoric; American presidents of the radio/television age; sports broadcasting, especially but not limited to baseball, football, basketball, and hockey; public speaking
Areas of expertise: International Monetary Fund, the World Bank, international political economy, international relations, Russian and East European politics.