Moon over Boston

This Gallup Poll is interesting:

"Which one of the following do you think is the leading economic power in the world today?"

China - 40%
United States - 33%
Japan - 13%
European Union - 7%
India - 2%
Russia - 2%

Compare to the actual size of the respective economies: The US economy is five times that of China's. Per-capita GDP is 18 times larger. Even adjusting for purchasing power—which has come under question via-à-vis China—the US economy is 15% larger.

Out my window, long exposure of a full moon over Boston:

Elsewhere, our chief economist, Hal Varian, lays out an economic view on Google's success.