Why the Medicare Cost Problem Is Still Unsolved

On August 28 The New York Times published a provocative article entitled “Medicare: Not Such a Budget Buster Anymore.” Its thesis was that Medicare no longer poses the budgetary threat it was projected to just a few years ago (The New York Times piece contrasts current projections with those made in 2006), thanks in part to the Affordable Care Act and other changes in the healthcare sector.

After its publication, other commentators such as Paul Krugman and those at Vox picked up the theme, with Krugman arguing that “our supposed fiscal crisis has been postponed, perhaps indefinitely” by the Medicare cost slowdown.

Related: Medicare by the Numbers

These articles exhibit substantial confusion about the significance of recent changes in Medicare projections. Full understanding of these factors renders it clear that the Medicare cost problem (and the broader federal budget challenge) has not been solved:

#1: That current Medicare spending is lower than projected in 2006 is not significant in and of itself; virtually every relevant economic variable is also lower. Measured in dollars, current Medicare spending is indeed smaller than the 2006 projections. But so is almost everything else pertinent, including cumulative general price inflation, tax revenue, and indeed our whole economy.

To see this, let us look at total Medicare spending as a percentage of GDP. (I will use Medicare trustees’ projections rather than CBO’s as the Times did, because CBO made some earlier mistakes in their health spending analyses that were not corrected until current CBO director Doug Elmendorf came on board in 2009).

The reality shown in this graph is quite different from the impression formed by The Times piece. Yes, in 2006 we thought Medicare spending would be a lot higher than it is now. But we also thought our economy as a whole would be bigger and that Medicare would receive more revenue.

Related: How Medicare Data Could Revolutionize Health Care

As a share of the economy, current Medicare spending is only slightly smaller than expected in 2006. The graph also reveals two other key pieces of the story:

a) Medicare spending jumped as a percentage of GDP in 2009 because GDP itself shrank with the recession. The more recent leveling on this graph reflects GDP resuming growth since then.

b) Lower spending in year 2006 itself accounts for most of the subsequent drop relative to 2006 projections, indeed more than the combined effects of all annual changes since then. The 2007 Medicare trustees’ report attributes the 2006 drop to a one-time “abrupt decline in the number of inpatient hospital readmissions.” That obviously has nothing to do with the ACA, enacted in 2010.