Rational brain · Systems, Incentives & Ethics

The Cobra Effect (Perverse Incentives)

An incentive rewards the problem it was meant to solve — pay per cobra and people breed cobras. Any reward system will be optimised literally; design for the behaviour the reward actually pays for.

An everyday example

Bonuses for closed tickets producing tickets split into three; bounties per bug producing bugs planted.

What it can cost you

Incentives you designed producing the opposite of what you intended; counterparts responding to your incentive, not your hope.

Warning signs

  • People are hitting the incentive and missing the point.
  • The reward pays for the proxy.

One thing to do

Before launching any incentive, ask how a clever, selfish person would maximise it; if that behaviour is not what you want, redesign.

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