Inglehart and Welzel. Modernization, Cultural Change and Democracy.
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Pharr and Putnam. Disaffected Democracies: What’s Troubling the Trilateral Countries. Обсуждение этого вопроса применительно к США см. в книге Mann and Ornstein. It’s Even Worse Than It Looks: How the American Constitutional System Collided with the New Politics of Extremism.
