Patronage (pre ww1), how has it affected parties and party system. Corruption of election system (open votes) and other economic interests (john a railroad: classifying parties and party system a. b. c. d. e. Four canadian party systems: patronage and state building 1867-1917, brokerage and nation building 1921-1963, electronic and agenda setting 1963-1988, regional and fragmentation 1993-2004, classifying parties and party system, numerical. After ww2, a sense of triumph and need to try and explain why countries who won were stable democratic states while those who failed were authoritarian: one party dominance: One party dominates, because it has won over 70% of seats or half the vote, or it may not win 50% of vote but it keeps winning over consecutive years: two party system. System where two parties have overwhelming majority of vote and 90% of seats. 2 parties periodic or regular switch of competition: three party system. Three parties have minimum of 20% of votes and some seats.