Claire’s favorite holiday is Halloween, but last year she may have went a little overboard to the point that the homeowners association forbid the Dunphey’s from doing particular things this Halloween. Claire’s goal is each Halloween is to produce a scary experience for trick-or-treaters visiting, but even Phil thinks she may have gone too far investing in professional grade makeup. He suggests that she could be twice as scary without wearing any makeup at all.

Another way to view this clip is through the impact of private benefits and social costs. Claire spends a lot of money each year on Halloween decorations, but her private benefits may not exceed the social costs imposed on neighbors (at least according to the HOA). The social costs of her decisions include someone wetting themselves and someone having a heart attack. While Claire may factor these into her investment decision, the HOA determined that the social costs outweigh the social benefits and has opted for a command-and-control approach to Halloween decorations at the Dunphy house.

See more: command and control, decreasing returns, diminishing marginal returns, government regulation, marginal utility, negative externalities, negative returns, role of government, utility