The Oprah Supply Curve shows the relationship between the quantity of Oprah Winfrey supplied and her income. Although even a Nobel laureate has speculated on the shape of that curve, its shape has not been estimated. We estimate its shape by using variation in the number of new episodes per season of Oprah's television show, The Oprah Winfrey Show. The curve appears to be backward bending. Thus, while Oprah may not be an obvious target for taxation, a higher tax rate might expand the quantity of services she supplies while also increasing tax revenues.
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