________ do not vary with the number of units produced.

________ e-commerce is the online exchange between companies and individual consumers.

________ errors can occur as a result of a questionnaire that contains ambiguous questions.

________ involves undertaking an activity until its marginal benefits equal marginal costs.

__________ is based on a buyer’s perceptions of value rather than on the seller’s cost.

_____________ costs support the company as a whole.

On average, since 1900 u.s. output has grown roughly ____ times faster than population growth.

Northlandia has a ______, while southlandia has a ________.

New investment is usually put into an economy when profit expectations are __________.

National debt is the amount of government _____ - _____ that has arisen from past _____.

Monopoly power significantly reduces the efficiency of __________ allocation within society.