What is the term for any factor that motivates a person to do something, including prices, taxes, and laws?

• A. Incentive
• B. Incentives
• C. Motivation
• D. Regulation

Answer: (A)

Incentives are factors that motivate people to act by changing the costs and benefits of different choices. Prices, taxes, and laws work this way because they influence the payoff of a given action. A higher price makes supplying a good more attractive, taxes alter after‑tax benefits and can deter certain behavior, and laws create consequences that guide decisions. The term that captures any such motivating factor is incentive, since it describes the signal that prompts a particular action. When you’re talking about multiple such factors, you’d use incentives, but for a single motivating factor the singular form is used. Motivations are internal drives, and regulations are explicit rules, so they don’t fit as the general term for what motivates behavior in this economic sense.