At the level of globally integrated economies, I think the gold standard has been pretty well proven to be disastrous. It especially doesn't deal well with trade imbalances that unwind suddenly. The trouble you see in the Euro area can be seen as a microcosm of what a gold standard is like; countries like Greece, Ireland, Portugal, Spain don't control their money supply - more or less, it's like gold - so they're caught in an extremely painful bind, when what would be best for them is to devalue their currency some. Instead, they're having to struggle under huge debt burdens, and some might have to default, or leave the Euro (i.e. by analogy leave the gold standard).