Why do some political parties flourish, while others flounder? In this 2008 book, Meguid examines variation in the electoral trajectories of the new set of single-issue parties: green, radical right, and ethnoterritorial parties. Instead of being dictated by electoral institutions or the socioeconomic climate, as the dominant theories contend, the fortunes of these niche parties, she argues, are shaped by the strategic responses of mainstream parties. She advances a theory of party competition in which mainstream parties facing unequal competitors have access to a wider and more effective set of strategies than posited by standard spatial models. Combining statistical analyses with in-depth case studies from Western Europe, the book explores how and why established parties undermine niche parties or turn them into weapons against their mainstream party opponents. This study of competition between unequals thus provides broader insights into the nature and outcome of competition between political equals.

Bonnie Meguid is an Associate Professor of Political Science at the University of Rochester. Her research on party competition has been published in The American Political Science Review. Her research has been funded by grants from the National Science Foundation and the Krupp Foundation, and her doctoral dissertation was awarded the Samuel H. Beer Prize for Best Ph.D. Dissertation on British Politics by the British Politics Group.