Williamson, Samuel H. (April 2010). Seven Ways to Compute the Relative Value of a U.S. Dollar Amount, 1774 to present. MeasuringWorth. Calculations made using Nominal GDP Per Capita, a measure of capital intensivity, using "the 'average' per-person output of the economy in the prices of the current year." This is a measure of the amount of capital and volume of labor required to reproduce the work over varying production methods, but assuming that money represents a proportion of the economy.
