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Explaining Policy Position Choice of Europarties: The Effect of Legislative Resources

While Europarties have received increasing attention in recent years, little is known about how they arrive at common policy positions, given their strong internal ideological heterogeneity. In order to explain position formation within Europarties, this article argues that national parties compete with each other in an attempt to upload their own policy positions to their Europarty. The article hypothesizes that their ability to succeed in these attempts depends on their legislative resources. The argument is tested by analysing position formation within the four major Europarties for all European Parliament elections between 1979 and 2004. The empirical results confirm that position choice is skewed towards parties with a large seat share, which has important implications for political representation in Europe.