q16penn. Coolidge was a conservative and ushered in prosperity (the roaring twenties). Hoover was a liberal and his failed spending policies, further amplified by FDR, extended the recession into a depression lasting until WWII.
GW Bush was a social conservative but a fiscal liberal. Thus he caved to Liberal Democrat demands for stimulus.
The collapse of the housing market and resulting financial markets rests squarely upon the shoulders of Democrats who believed everyone was entitled to a house, where they could afford and qualify it, or not.