The classic example of a Giffen good is a staple food like bread: As Mr. Giffen has pointed out, a rise in the price of bread makes so large a drain on the res

The classic example of a Giffen good is a staple food like bread: As Mr. Giffen has pointed out, a rise in the price of bread makes so large a drain on the resources of the poorer labouring families and raises the marginal utility of money to them so much that they are forced to curtail their consumption of meat and the more expensive farinaceous foods: and, bread being still the cheapest food which they can get and will take, they consume more, and not less of it. https://en.wikipedia.org/wiki/Giffen_good https://en.wikipedia.org/wiki/Giffen_good