21. Professor Pempel's research and teaching focus on comparative politics , political economy, contemporary Japan, and Asian regionalism. 22. Rossavik graduated from the University of Bergen in 1986 with a bachelor's degree in comparative politics . 23. In 2009, Joseph completed a graduate diploma in comparative politics from the London School of Economics. 24. He also taught foreign policy and comparative politics . 25. Since 1977 he has been employed by the Institute of Comparative Politics at the University of Bergen. 26. "Timing of Economic Growth and Regime Characteristics in Latin America . " " Comparative Politics , " 1975. 27. He is currently a Fellow in Comparative Politics at The London School of Economics and Political Science. 28. This theory was accepted by others and extended into the study of international relations and comparative politics . 29. These works, including " Separation of Powers " in the " Oxford Handbook of Comparative Politics ". 30. Passion, Craft, and Method in Comparative Politics .