“…First, they are a way out of the impasse of over-production and low farm incomes; second, there are short-run gains for producers; third, there is protection against price declines that destroy asset values; and, fourth, there is increased certainty in resource allocation. Butcher & Heady (1963) add two more if quotas are tradable: first, in the short run, production will gravitate to low-cost farms and, second, in the long run, resource holdings of farms will adjust.…”