More retirees, longer life expectancy, larger benefits, and fewer workers - these trends have meant substantial increases in the payroll tax. Since the social security program began, the payroll tax has increased more than 500 percent.

Our obsessive focus on college schooling has blinded us to basic truths. College is a place, not a magic formula. It matters what subjects students study, and subsidies should focus on the subjects that matter the most - not to the students, but to everyone else.

Writing on the blog, you want to get attention and make strong claims. In academic work, that often doesn't pay, so sometimes it's a little bit difficult going back and forth to navigate these differences.

Capitalists work hard to produce what consumers want. Artists who work too hard to produce what consumers want are often accused of selling out. Thus, even the languages of capitalism and art conflict: a firm that has 'sold out' has succeeded, but an artist that has 'sold out' has failed.

Education is the key to the future: You've heard it a million times, and it's not wrong. Educated people have higher wages and lower unemployment rates, and better-educated countries grow faster and innovate more than other countries. But going to college is not enough. You also have to study the right subjects.

Patents are like fertilizer. Applied wisely and sparingly, they can increase growth. But if you apply too many chemicals, or make patents too strong, then you can leach the land, making growth more difficult.

Michael Moore didn't have to worry that anyone would misinterpret the title of his film, 'Capitalism: A Love Story,' because in Hollywood, no one loves capitalism. That's too bad, because Hollywood is one of capitalism's greatest successes.