The marginal rate of substitution represents the maximum amount of one commodity a consumer is willing to give up in exchange for one more unit of another commodity

A tax accounting firm produces 500 tax returns units when the market price is $150 per return and produces 700 tax returns when the market price is $170 per tax return. Using the midpoint method, for this range of prices, the price elasticity of supply is about

a. 2.67. b. 0.67. c. 0.4. d. 0.125.

In terms of economic growth, educated workers are generally:

A. happier. B. less healthy. C. less productive. D. more productive.