Durvenger's law states that FPTP favours a two-party system. Even in Canada we've never really had more than a 2.5 party system, and if it weren't for our intense regionalisms we'd probably have wound up with a two-party system earlier. Rarely has any election in Canadian history been a three-way race for government (Ontario 1990 may be the best example of an exception, possibly also Quebec 2007). There is a silver lining for those of us who believe in a multiparty system and electoral reform - namely that when the FPTP system becomes a three-way race, the need for electoral reform becomes more evident/popular. The threshold for winning seats is substantially lowered in three-way races, and if there are enough of them, more people will wake up to the need for reform. For example, if more ridings looked like Gatineau or Welland in 2008, the idea of reform would become more popular (Richard Nadeau won Gatineau in 2008 with only 29% of the vote in that election).