If marginal utility from consuming an extra unit of a good is positive, then the consumer's total utility must increase as more of the good is consumed

An externality is any activity for which an individual firm or consumer does not take into account all

A) of the ramifications of its actions on others. B) associated costs. C) associated benefits. D) associated costs and benefits.

If the demand for a good increases when the price of another good increases, then these goods are:

a. complementary in consumption. b. complementary in production. c. substitute in production. d. substitute in consumption. e. neither substitutes nor complementary.