Despite the market triumphalism that greeted the end of the Cold War, the collapse of the Soviet empire seemed initially to herald new possibilities for social democracy. In the 1990s, with a new era of peace and economic prosperity apparently imminent, people discontented with the realities of global capitalism swept social democrats into power in many Western countries. The resurgence was, however, brief. Neither the recurring economic crises of the 2000s nor the ongoing War on Terror was conducive to social democracy, which soon gave way to a prolonged decline in countries where social...