Comparative Analysis of Left-Wing Parties in Latin America

What accounts for the puzzling variation in the growth and development of left-wing parties in Latin America? Under what conditions do they transform into lasting, organized, electoral-professional parties? Conversely, under what conditions do they fail? This paper addresses these questions through an intra-party politics lens with a particular focus on Uruguay's Frente Amplio, Brazil's Partido dos Trabalhadores, and Venezuela's La Causa Radical