The
New York Times interactive piece is an interesting little exercise, but I'd like to disabuse you of the notion that deficit-busting is anywhere near as easy as it suggests.
For instance, what year-over-year GDP growth estimates does the model use for the period between now and 2015? The authors don't say, but I'd bet a few big chips that they're either White House numbers or CBO estimates. In either case, they're based on fantasy, not reality. I got the first hint of that when I saw this item a few days ago. Someone commented about how easy it was to achieve a satisfactory level of deficit reduction simply by electing a carbon tax and a big tax increase on the affluent. That ought to be the first hint that something's a little fishy.
The CBO has produced estimates that sustained year-over-year GDP growth will be in the 4.4% range between 2012 and 2015. That's faster growth than we've had at almost any time in modern history. (The 1983-2007 average was about 3.5%). Most private forecasters believe that the CBO numbers are wildly optimistic. If fact, some say they're simply ridiculous.
In my opinion, Mohamed El-Erian understands today's economy as well as anyone. He has written frequently on what he calls the "new normal" -- an extended period of sluggish growth in the 2% range. This should surprise no one. We're suffering a hangover not only from the financial crisis but from excessive, entrenched government spending, which almost always retards prospects for economic growth.
Remember, too, that deficits are extraordinarily sensitive to the rate of GDP growth over time. Look at what happened in the late 1990s. Of course, we did a better job of restraining the rate of growth of government spending than at any other time in the last 50 years, but better-than-forecast growth is an even bigger reason that the deficits melted away so quickly.
In short, this is just another case of GIGO. It's based on fantasies that are very unlikely to come to fruition.
While in full-blown debunking mode, I might point out a couple of other assumptions that are obviously ridiculous.
For one thing, the "millionaire's tax" (a 5.4% surtax on personal income over $1 million, presumably stacked on top of the resurrected 39.6% rate, making it an even 45%) is scored at $50 billion/year. This is the sort of stuff produced by budget analysts who have no idea how the real world works and assume that no one will do anything differenly in the face of rising tax rates. Anyone who has noticed what happens when states try to jack up income tax rates on high-incomers knows better. The more they jack up the rates, the more income that simply pulls a disappearing act.
Another fantasy is that you can get much more money out of affluent investors by raising capital gains tax rates. Take a look at this graph showing an inverse correlation between the realized capital gains/GDP ratio and the top rate on cap gains:
Since the graph was promulgated by the CBO, you'd think its analysts would at least be informed enough to use some sort of dynamic scoring analysis! Amazing.
Another option in the NYT interactive involves raising the top tax rate on qualified dividend income to 39.6%. Aside from my belief that it would not raise much additional revenue (again, high income investors have a lot of choices regarding whether and how to realize income), I think it's a terrible idea to devalue portfolios, even if only modestly, in this shaky equity market. A lot of non-affluent seniors depend on dividend-paying stocks such as utilities and energy, and anything that reduces demand for these issues shaves a bit of net worth from 401k and other retirement accounts.
When politicians responding to wealth-envy sentiments start firing at successful individuals, they often end up wounding innocent bystanders.