There’s plenty of blame to go around for the Global Financial Crisis and the subsequent depression, and the Bush Administration deserves only a small share. Bush’s main contribution was to introduce unfunded tax cuts at a time when the budget should have been in surplus, thereby reducing the fiscal space available for stimulus when the crisis came. But, given the weakness of the stimulus and the ferocity of the political response, it’s not clear that was a binding constraint in any case.
The primary culprit is market liberal economics, which may be considered both as a set of ideas with its own internal logic and as an expression of the class interests of those who benefit from the finance-dominated form of capitalism that produced the crisis and has prevented any recovery. My book Zombie Economics is a critique of market liberalism considered as an economic theory, showing how market liberalism produced the crisis.