According to Friday’s China Daily (and a host of other newspapers around the world), a just published Gallup survey claims that most Americans think China will be the world’s largest economy within 20 years. We obviously need to take these opinions with a grain of salt since, according to the same survey, 40% of Americans believe the China is today the world’s top economy, compared to 33% who believe it is the US. Since the US economy is currently more than four times the size of China’s, it is a little hard to understand why 40% of Americans think China’s is the world’s largest, but there you have it.