Maximize sales with corporate support rates that reflect inventory, demand, and the value of public media.

Public radio underwriting spots are a perishable commodity. Once a week of programming is over, those spots can never be sold again. The goal of selling underwriting is to use as much inventory as you can at the highest rate you can get. And because inventory is always changing, your underwriting rates will also change based on supply and demand, a bit like airfares that go up and down based on when travelers want to…