What does it mean for them to be "Liberals"? Both the Liberals and the PCs, at least, are right-of-centre neo-liberal parties who see their role as budging the "free market". They both fundamentally believe that what they really need to do is fine the right set of passive conditions that will make the market fix everything. They just disagree on the exact settings.

And the NDP have been playing catch-up with them on that issue for 20 years now.

The neo-cons and so-cons differ somewhat, but the various big-C Conservative parties don't do well at the polls when they're in charge.

Well, outside of Alberta, anyway.