Modern Theories and Research Schools in International Relations Give a comprehensive definition to

Modern Theories and Research Schools in International Relations 

Give a comprehensive definition to:

I. ‘Great debates’ in IR: realism, liberalism, social constructivism, Marxism and neoMarxism, (comparative) Foreign policy analysis, behaviourism, institutionalism, rational choice theory, game theory, cultural theory, critical theory, poststructuralism, feminism, post-colonialism, political economy, normative political theory, history of political thought, conceptual analysis, relativism, postmodernism, etc. What are the philosophical and epistemological issues underpinning the major IR research paradigms? 

Hans Morgenthau; John Herz; Kenneth Waltz, Kenneth Waltz; Ronald Niebuhr; Raymond Aron; Arnold Wolfers; John J. Mearsheimer; Robert Gilpin; Paul Kennedy; Gideon Rose; Robert O. Keohane; Stephen Krasner; David Baldwin; Andrew Moravcsik; Kenneth Abbott, Anne-Marie Slaughter, Duncan Snidal; John Ikenberry; Joseph S. Nye; Barry Buzan; Ian Hurd; Alexander Wendt; Anthony Giddens; John Gerard Ruggie; Friedrich Kratochwil; Peter Katzenstein; Martin Wight; Hedley Bull; Immanuel Wallerstein; Jürgen Habermas; James Rosenau; S. Huntington; F. Fukuyama; Z. Brzezinski, Thomas L. Friedman, and others.