"Philosophy can add to our happiness in no other manner but by diminishing our misery; it should not pretend to increase our present stock, but make us economists of what we are possessed of. Happy were we all born philosophers; all born with a talent of thus dissipating our own cares by spreading them upon all mankind."

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If you go back to Adam Smith, you find the idea that markets and market forces operate as an invisible hand. This is the traditional laissez-faire market idea. But today, when economics is increasingly defined as the science of incentive, it becomes clear that the use of incentives involves quite active intervention, either by an economist or a policy maker, in using financial inducements to motivate behavior. In fact, so much though that we now almost take for granted that incentives are central to the subject of economics.

— Michael Sandel