Technology and Public Goods

As a wise man once taught me in a public choice class, excludability depends on the state of technology. Example:1 the Pay & Sit park bench.

Design student Fabian Brunsing has devised a fiendish device that makes pay toilets seem positively munificent: Dubbed “Pay & Sit: The Private Bench,” it consists of a bench covered with retractable metal spikes and a coin slot. If you want to sit down on the bench without an array of spikes jamming you in the keister, you’ve got to pay €0.50 (about 70 cents US).

As seen below, this causes the spikes to retract so you can sit on the bench, and also activates a timer. Shortly before the timer expires, you’re warned by a buzzer to get up; then, the spikes shoot back up. Beware!

Spikes, it seems, provide strong incentives.

Hat tip: Anthony Martin.

1. Jumper Colon!

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