“…where we allow the discount factors θ j to vary arbitrarily over time. The consumer can spend her time-t assets A t on either consumption c t or health care y t : See Born, Viscusi, and Baker (2006), Currie and MacLeod (2008), Helland, Klick, and Tabarrok (2005), Kessler, Sage, and Becker (2005), Klick and Stratmann (2007), Matsa (2007), and Economist (2005). 29 We do not contend that economic theory implies tort liability must reduce physician supply.…”