[cojaaykq] Price of broadcasts

The government creates a "push" broadcast channel for which it is not easy to opt out.  Such a thing is (in principle) useful: for example, public safety emergency information.

However, private entities may broadcast to it, for a price.  What is the optimal price?

The government should pay that same price, to avoid abuse, perhaps paying one level up in government to avoid paying itself.  A state government broadcasts to state residents, paying the federal government for permission.  The federal government never broadcasts.  (This idea is probably broken.)

Inspiration: government broadcast text messages, anecdotally observed in China.