But I never understood why the old Liberal Party began to decline to begin with. If anything, you'd think they would have been a more logical place - in terms of ideology - for supply side economics and neoliberalism to grow in the 1970s and 1980s than the Conservative Party would have been.
I think a better question to ask is why the liberal parties in Canada and United States
didn't decline. After all, the patter in most of the west is a conservative party versus a labour party, with other ideologies bringing up the rear.