This blog continues my exploration of the great mysteries of health economics.
Northwestern University is one of Blue Cross of Illinois’ largest customers. Suppose that premiums for all BC plans are expected to increase by 10 percent, but NU is able to force Blue Cross to accept a 5 percent increase. Would you expect Blue Cross stick McDonalds with a 15 percent increase in order to cover the shortfall from NU?
I wouldn’t, for two reasons. First, McDonalds would probably threaten to take its insurance business elsewhere. Second, the scenario I have described is inconsistent with profit maximization by Blue Cross. After all, BC’s ability to stick McDonalds with a 15 percent increase surely does not depend on the price paid by NU. Any negotiator whose willingness to stick it to McDonalds is conditional on the price charged to NU is leaving money on the table and probably would have been fired a long time ago.
We might never expect BC to raise prices to some customers to make up for shortfalls from others, so why do we believe that hospitals do this all the time? It is impossible to discuss Medicare and Medicaid payments without someone invoking the mantra of cost-shifting. The theory of cost-shifting is deeply ingrained in the minds of healthcare decision makers and the policy implications of the theory are profound. Consider that if hospitals cost shift, then the burden of Medicaid cutbacks falls on privately insured patients, not on Medicaid patients and the hospitals that serve them. This calls into question whether the cutbacks will result in any savings for taxpayers and cause any harm to Medicaid beneficiaries. It also makes you wonder why hospitals that serve low income communities struggle to survive. Couldn’t they just cost-shift their way out of financial difficulty? A cost-shifting zealot would conclude that the managers of these hospitals are incompetent.Continue reading…








