As a subscriber of the economist since 2003, I'm curious to know which articles and views you are referring to. If anything, the Economist is one of the most (if not the most) balanced magazine I've ever come across.
I think it's 1) more balanced than most 2) still not very balanced and 3) easy enough to sort out the facts from the liberal (in the global sense of the word) triumphalism.
But they're definitely more in tune with the Austrian school than with the Keynesians or the Krugmanites. Calling it a "left-wing weekly" is pretty questionable.