Although the Socialist or Social Democractic parties played a key role in West European politics during the quarter century after the Second World War, they have been studied far less than their political rivals, the Christian Democrats. The story of West European Social Democracy after 1945 begins with a dilemma: Democratic marxism, which had been the parties' ideological and organizational principle until the Second World War, was becoming politically irrelevant. The three parties analyzed here represent the spectrum of reactions among Social Democratic parties to this realization. The...

Although the Socialist or Social Democractic parties played a key role in West European politics during the quarter century after the Second World War, they have been studied far less than their political rivals, the Christian Democrats. The story of West European Social Democracy after 1945 begins with a dilemma: Democratic marxism, which had been the parties' ideological and organizational principle until the Second World War, was becoming politically irrelevant. The three parties analyzed here represent the spectrum of reactions among Social Democratic parties to this realization. The...