On Freedom Book CoverIn this short book of 136 pages, titled On Freedom, Cass Sunstein makes the case that freedom is enhanced by the intentional restriction or gentle manipulation of free choice. Just as a GPS system guides you to the desired destination while preserving your freedom to take an alternate route, “nudges” can point you in the right behavioral direction while preserving your ability to choose otherwise.

A simple example is automatic enrollment in a 401K retirement savings program. This particular “nudge” is beneficial because it helps to overcome two common biases. The “present bias” makes it difficult for people to save for the future, and the “default option bias” makes it difficult for people to make changes to the status quo.

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