Offline Shopping Cart Piracy

James DeLong really knows how to put things in perspective, so long as you set aside the tortured economic reasoning (e.g., how are the shopping carts suddenly non-rivalrous?).  Shopping cart theft is clearly a serious problem. In various lectures, JZ has pointed out that shopping cart theft costs retailers 800 million dollars per year – I can’t find an article supports that figure right now, but Wikipedia has the same number. Meanwhile, US music sales declined a mere ~$400 million last year, which doesn’t include the revenue gained from digital sales.  I expect DeLong will soon redouble his efforts to stop the menace of offline shopping cart piracy.