You know, they performed opinion polls of people in Singapore and Hong Kong—the two freest economies in the world, almost textbook models of laissez faire—and found that most voters were fairly economically illiterate, and often were in favor of bad (populist) economic policies such as minimum wage.
It seems that more than economic literacy, which will probably never be all that widespread in any country (though I still contend that econ classes ought to be up there with math and English), is not as important as having voters who defer economic policy to experts, rather than assuming that their ptolemaic view is the correct one.
If that sounds elitist, consider that most people would not give their own opinions on quantum theory, or proper medical treatment for this or that disease, preferring instead to leave such things to the experts. Oddly, economic policy is rarely left to economic experts—most people just make assumptions that they treat as Gospel. This goes for politicians as well.
I didn’t even finish reading it and that sounded elitist.