In the prisoner's dilemma, both players have an incentive to cheat, even though they would both be better off if they both cooperated.

All of the following increase total factor productivity except

A) new inventions. B) more capital. C) new management techniques. D) favorable changes in government regulations.

Which of the following is likely to improve a person's income?

a. increased productivity b. investing in human capital c. possessing a special talent or skill d. all of the above