SQUINT hard, and textbook publishers can look a lot like drug makers. They both make money from doing obvious good  healing, educating  and they both have customers who may be willing to sacrifice their last pennies to buy what these companies are selling.

It is that fact that can suddenly turn the good guys into bad guys, especially when the prices they charge are compared with generic drugs or ordinary books. A final similarity, in the words of R. Preston McAfee, an economics professor at Cal Tech, is that both textbook publishers and drug makers benefit from the problem of “moral hazards”  that is, the doctor who prescribes medication and the professor who requires a textbook don’t have to bear the cost and thus usually don’t think twice about it.

“The person who pays for the book, the parent or the student, doesn’t choose it,” he said. “There is this sort of creep. It’s always O.K. to add $5.”

In protest of what he says are textbooks’ intolerably high prices  and the dumbing down of their content to appeal to the widest possible market  Professor McAfee has put his introductory economics textbook online free. He says he most likely could have earned a $100,000 advance on the book had he gone the traditional publishing route, and it would have had a list price approaching $200.