Assorted links

1. Robert Barro on unions and right to work laws.

2. Arbitrage the nickel.

3. National Review interview with Tyler Cowen, with a segment on Austrian economics.

4. The Gaddafi International Charity and Development Foundation.

5. Remind me again: is Medicaid expanding...or contracting?  Why do I keep forgetting?  (p.s. this is the real danger to ACA, not the Supreme Court)

6. The marginal product of health care in Canada.