Most price supports in the United States are based on percentages of parity, Large surpluses have built up in recent years, however, under several of the storage-support programs. This has raised the question of whether or not percentages of parity are good bases for price-stabilization programs. And, during the past year, some other bases have been proposed. Let's take a look at them.
Shepherd, Geoffrey and Joslin, Kenneth
"A Different Base for Corn Price Supports?,"
Iowa Farm Science: Vol. 13
, Article 2.
Available at: https://lib.dr.iastate.edu/farmscience/vol13/iss4/2