"How did the six ideological groups do overall? Here they are, best to worst, with an average number of incorrect responses from 0 to 8: Very conservative, 1.30; Libertarian, 1.38; Conservative, 1.67; Moderate, 3.67; Liberal, 4.69; Progressive/very liberal, 5.26...
On every question the left did much worse. On the monopoly question, the portion of progressive/very liberals answering incorrectly (31%) was more than twice that of conservatives (13%) and more than four times that of libertarians (7%). On the question about living standards, the portion of progressive/very liberals answering incorrectly (61%) was more than four times that of conservatives (13%) and almost three times that of libertarians (21%).
The survey also asked about party affiliation. Those responding Democratic averaged 4.59 incorrect answers. Republicans averaged 1.61 incorrect, and Libertarians 1.26 incorrect."
The continuing ignorance of a large fraction of the population about economics is one of the wonders of our age. A majority of politicians today don't know as much about the subject as economic thinkers of 150-200 years ago. The result of that ignorance is the imposition of destructive policies that make almost everyone poorer.