Watching the promos for NBC's new drama "Revolution" (whose premise is a sudden failure the electric grid failed, along with all other fuel sources) tonight on NBC, a question arose:

How would the market deal with the sudden shortage of horses, given a lack of instant communication?

The easy answer, I guess, is that there is no longer a single market, but thousands of markets, and buyers might be unlucky or lucky about the price they pay in the first few days or weeks.