In writing about the ACA and our health-care problems, I started to think more and more about supply restrictions. In every other industry, costs come down when new suppliers come in and compete. Yet our health-care system is full of restrictions and protections to keep new suppliers out, and competition down. Then we wonder why hospitals won't tell you how much care will cost, and send you bills with $100 band aids on them. In that context, I was interested to learn this week about the ACA's limits on expansion of doctor-owned hospitals. The Wall Street Journal article is here,...