Note: This is post #66 in a weekly video series on basic microeconomics.

Imagine you take your car in to the shop for routine service and the mechanic says you need a number of repairs. Do you really need them? The mechanic certainly knows more about car repair than you do, but it’s hard to tell whether he’s correct or even telling the truth. You certainly don’t want to pay for repairs you don’t need. Sometimes, when one party has an information advantage, explains Tyler Cowen in this video by Marginal Revolution University, they may have an incentive to exploit the other party. This type of exploitation is called moral hazard, and can happen in many situations

(If you find the pace of the videos too slow, I’d mend watching them at 1.5 to 2 times the speed. You can adjust the speed at which the video plays by clicking on “Settings” (the gear symbol) and changing “Speed” from normal to 1.25, 1.5 or 2.)

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