The federal government says Idahoans have received $11.6 million in rebates through the now-ended Cash for Clunkers program. That’s just 0.4 percent of the neatly $2.9 billion in rebates distributed nationwide. It’s also the equivalent of between 2,600 and 3,000 old Idaho cars being taken off the road and turned to scrap. If you know anything about economics, you know that’s a problem. Remember supply and demand? More supply, lower prices; lower supply, higher prices. With supply constrained, the vehicles that remain on the market are fetching higherprices at auction.