To: Lane3 who wrote (16107 ) 4/4/2010 1:28:29 PM From: Lane3 2 Recommendations Respond to of 42652 More on CBO scoringjeffreymiron.com A Preview of ObamaCare by Jeffrey Miron on April 4th, 2010 No CommentsComments ObamaCare is modeled, approximately, on the health insurance plan adopted in Massachusetts in 2006. So it is useful to watch developments here as an advance view of how ObamaCare will operate: Thousands of consumers are gaming Massachusetts’ 2006 health insurance law by buying insurance when they need to cover pricey medical care, such as fertility treatments and knee surgery, and then swiftly dropping coverage, a practice that insurance executives say is driving up costs for other people and small businesses. In 2009 alone, 936 people signed up for coverage with Blue Cross and Blue Shield of Massachusetts for three months or less and ran up claims of more than $1,000 per month while in the plan. Their medical spending while insured was more than four times the average for consumers who buy coverage on their own and retain it in a normal fashion, according to data the state’s largest private insurer provided the Globe. This is precisely the kind of strategic behavior that many critics of OamaCare fear; this one results from the ban on pre-existing conditions combined with community rating. And this gaming is exactly the kind of “dynamic” effect that CBO’s cost estimates tend to miss. CBO engages in “static” scoring, which means it does not incorporate behavioral responses to the incentives created by a law. Its cost estimates are therefore almost certainly too low. Note that static scoring is understandable; the correct assumptions to employ in dynamic scoring are not obvious, so dynamic scoring might be more open to political manipulation than static scoring. But honest discussions should recognize that static scoring will typically underestimate a bill’s expenditure and overestimate its revenues. My colleauges Greg Mankiw and Matt Weinzierl have a nice paper on this issue.