> supply side subsidies without cost controls are essentially useless, as the cost of the subsidized good rises to match the subsidy. For a beautiful case stud

> supply side subsidies without cost controls are essentially useless, as the cost of the subsidized good rises to match the subsidy. For a beautiful case study in this, in 2007 or so when they were turning off analog TV the US government allowed each household two vouchers worth up to $40 to buy a converter box, (provided the box did not offer a digital output). (Not) shockingly, not until these vouchers expired did any boxes come on the market priced under $40, even though they were not complex or expensive in cost.