Decision Fatigue

Decision fatigue refers to the deteriorating quality of decisions made by an individual, after continuously making decisions. It is now understood as one of the causes of irrational trade-offs in decision-making. Decision fatigue may also lead to consumers making poor choices with their purchases.

decision fatigue

Effects of Decision Fatigue

1. Reduced ability to make trade-offs

A person who is mentally depleted becomes reluctant to make trade-offs and thus makes very poor choices. For example, when consumers visit car dealerships, they may feel overwhelmed by all of the different financing, upgrades, and warranty options. This is particularly true after a price has been agreed and the buyer is sitting in the financing office. At this point, he just wants to complete the deal. Buyers often agree to extras that they normally would have not taken.

2. Decision avoidance

Decision fatigue can not only result in fast and careless decisions but even in decision avoidance, where no decision is made at all. Researchers found that people who had more choices were often less willing to decide to buy anything at all. Their subsequent satisfaction was lower when they had been confronted with 24 or 30 options than when they faced six options.

3. Impulse purchasing

Fatigue can influence irrational impulse purchases at supermarkets. During a trip to the supermarket, trade-off decisions regarding prices and promotions can produce decision fatigue. Hence by the time the shopper reaches the cash register, less willpower remains to resist impulse purchases of candy and sugared items. Sweet snacks are usually featured at the cash register because many shoppers have decision fatigue by the time they get there.

4. Impaired self-regulation

Experiments have shown that there is an interrelationship between decision fatigue and ego depletion. Here, a person’s ability for self-control against impulses decreases in the face of decision fatigue. Research shows that the decisions judges make are extremely influenced by how long in the day it has been since their last break.


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