The trustworthy experts are the self-interested ones. The sugar producers, for instance, have a price floor for the goods they supply. But they have experts wh

The trustworthy experts are the self-interested ones. The sugar producers, for instance, have a price floor for the goods they supply. But they have experts who know the danger of price floors, so they made sure their deal requires that the government purchase unsold sugar. And, of course, even that doesn't prevent sugar consumers from using alternatives, hence the number of products that replace sugar with high-fructose corn syrup.