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President Biden says “We’re planning to make it mandatory for airlines to compensate travelers with meals, hotels, taxis, and cash, miles, or travel vouchers when your flight is delayed or cancelled because of their mistake.”

A classic example of the Happy Meal Fallacy:

Some restaurants offer burgers without fries and a drink. These restaurants cater to low-income people who enjoy fries and drinks but can’t always afford them. To rectify this sad situation a presidential candidate proposes The Happy Meal Act. Under the Act, burgers must be sold with fries and a drink. “Burgers by themselves are not a complete, nutritious meal,” the politician argues, concluding with the uplifting campaign slogan, “Everyone deserves a Happy Meal!”

But will the Happy Meal Act make people happy? If burgers must come with fries and a drink, restaurants will increase the price of a “burger.” Even though everyone likes fries and a drink they may not like the added benefits by as much as the increase in the price of the meal. Indeed, this must be the case since consumers could have bought the meal before the Act but chose not to. Requiring firms to sell benefits that customers value less than their cost makes both firms and customers worse off.

Almost everyone understands this when it comes to burgers and fries but make it burgers, fries and air miles and some people will think this is a good idea. To recap, requiring firms to sell benefits that customers value less than their cost makes both firms and customers worse off. And if customers value the benefits at more than the cost then that’s a profit opportunity and there is no need for a mandate.