Gilbert, Gill and Wilson (2002) examined the effect of hunger on grocery shopping. Subjects were asked to list their planned shopping. Some were given back the list and some were not, and some were given a muffin to try before shopping and some not. The number of unlisted items that the shopper subsequently bought was recorded.

Explain the consistency of findings with projection bias and pre-commitment;

Provide real life examples that reflect the application of such findings in practice.

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