Its 2020 and we still have farmers destroying crops rather than having some sensible state backed cost floor price guarantee to just buy excess and distribute it freely. You can definitely guard against exploitation by doing the math on what the maxima is between the volatility of pegging it to market prices vs the delay in using historical means.
I'd much rather get a quart of state milk once or twice a year for free while paying .2% more sales tax than having usable food destroyed.
I'd much rather get a quart of state milk once or twice a year for free while paying .2% more sales tax than having usable food destroyed.