[orwin]

Since US firm invented and mastered the improperly called 'shadow banking' (they're not banks, banks issue and destroy new money. Shadow intermediary maybe?), GDP is a worsening indicator of consumption+investment (or overall production if you will).

The reason is simple: GDP grow with money velocity, and 'shadow banking' artificially increase that number, with very low impact on the real world (I'm not saying null, this boosted the US car consumption a lot with easy car credits, but the effects aren't in the same order of magnitude)