Are Americans more gullible than Europeans?

They are traits that Americans have that can't be found in Europeans and vice-versa.

Europeans tend to be more cynical, less optimistic and less creative and their American counterparts just the opposite on these very points.

With this, Americans are also much more gullible; they'll take on a new philosophy, a bizarre religion or a radical diet just on a whim. It may not last, but they'll try the new thing.

Why? Is it because they're more flexible in their thoughts, more malleable, also more religious as a whole and self-critical than the typical, heathen, European?

Your turn to tell me what you think and why!