Commitment bias refers to the tendency for people to be more likely to commit to and follow through with decisions or actions that they have publicly announced or made public in some way. This bias can arise due to a desire to maintain consistency between one's words and actions, or to avoid appearing indecisive or unreliable.

One of the key ways in which commitment bias manifests is through the influence of public declarations on decision-making. When people make a public commitment to a particular decision or action, they may be more likely to follow through with that commitment, even if they later realize that it was a suboptimal choice. This can be influenced by a desire to maintain consistency between one's words and actions, as well as a fear of appearing indecisive or unreliable.

Commitment bias can also affect the way that people evaluate and compare options. For example, if someone has publicly committed to a particular option, they may be more likely to evaluate that option more favorably and overlook potential drawbacks or drawbacks of other options. This can lead to a biased evaluation of the options and a suboptimal decision.

The phenomenon of commitment bias can have significant consequences, as it can lead people to follow through with decisions or actions that are suboptimal or not in their best interests. In addition, it can contribute to a lack of flexibility or adaptability, as people may be less likely to consider alternative options or to change course once they have made a public commitment.