Sunday, March 29, 2009
Just A Thought
Colonizing Education and Healthcare - Part I
As went loan officers, so has much of our economy been computerized and managed using empirical grunt-work. For instance, see--logistics, telecommunications, airplane booking, retail, internet search (pretty much anything internet really) and so forth. This technology boom is behind the growth in prosperity over the past decades (I don't care what the Democrats say, I'd rather live now than in the 1970s, no matter how much the top 1% make). There is a tradeoff to be made in terms of the lost career autonomy in certain fields, but it is one that free markets make willingly, and people overall accept due to the gains in widespread prosperity, as well as the job gains in other, often more satisfying, fields (such as identifying best practices). A common characteristic of this part of the economy is that things get cheaper over time, and take up less and less of the GDP to produce higher quality stuff with fewer people doing more skilled tasks.
Education and healthcare are still terra incognita for this reform movement. Tuition bills and healthcare costs have skyrocketed, but despite large gains in technology, these sectors are not vastly more productive than they were, say, fifty years ago. The cost of these services rises in proportion to growing wages (which are going up because of the sector described above), but we really aren't seeing a corresponding improvement in quality of services.
Of course, the labor-intensive nature of these services means that these will continue to become more expensive over time. Yet the unwillingness to consider data-driven approaches on how to educate or deliver healthcare are also behind the relative backwardness of these parts of the economy. It's a little strange in a way, because our teachers are smarter than ever before, our surgical equipment shinier, and our computers ever-more modern. It's the institutions and mindset behind education and medicine which have fallen behind, that contribute to, say, the failure of inner-city schools or the impact of the rising cost of healthcare on the exploding fiscal deficit.
Friday, March 27, 2009
Climate Change and Freeman Dyson
Dyson has said that it all boils down to “a deeper disagreement about values” between those who think “nature knows best” and that “any gross human disruption of the natural environment is evil,” and “humanists,” like himself, who contend that protecting the existing biosphere is not as important as fighting more repugnant evils like war, poverty and unemployment.Dyson has always been strongly opposed to the idea that there is any such thing as an optimal ecosystem — “life is always changing” — and he abhors the notion that men and women are something apart from nature, that “we must apologize for being human.” Humans, he says, have a duty to restructure nature for their survival.
Dyson has great affection for coal and for one big reason: It is so inexpensive that most of the world can afford it. “There’s a lot of truth to the statement Greens are people who never had to worry about their grocery bills,” he says. (“Many of these people are my friends,” he will also tell you.) To Dyson, “the move of the populations of China and India from poverty to middle-class prosperity should be the great historic achievement of the century. Without coal it cannot happen.”
The practical consequence for global-warming policy is that we should pursue the following objectives in order of priority. (1) Avoid the ambitious proposals. (2) Develop the science and technology for a low-cost backstop. (3) Negotiate an international treaty coming as close as possible to the optimal policy, in case the low-cost backstop fails. (4) Avoid an international treaty making the Kyoto Protocol policy permanent. These objectives are valid for economic reasons, independent of the scientific details of global warming.
A key plank of Obama’s campaign was a theme that we need to “reduce our dependence on foreign oil.” This was really more of a populist crowd-puller, and I assumed that it would kind of go away once oil prices came back to Earth. Instead, this call to action is informing tens of billions of dollars in spending on a variety of renewable energy projects.
Thing is, this really makes no sense. Foreign oil is bad because it pulls us into Iraq-like conflicts? That only tells you that invading Iraq was a bad idea–every other country on Earth manages to survive on imported oil just fine. In fact, every other nation is also dependent on others for some sort of energy, even Saudi Arabia. Energy autarky is a dangerously misguided notion.
But maybe it’s bad because of the whole carbon thing, and we should also get rid of coal energy as we go along. If that’s the problem, then put in a carbon tax–as Norway did, with amazing results–so we properly price carbon and use less of it. While some sort of cap-and-trade may be in the works, the dominant tactic for achieving this goal seems to lie in massive subsidies for researching ‘green’ technologies.
Of course, nuclear energy–one of the cleanest and cheapest technologies around, one that America is perfectly willing to export to the rest of the world–doesn’t count, because the Senate Majority Leader is from Nevada, where the waste would go. Hydro power doesn’t count either. Natural gas exists in abundance in this country and can be cheaply imported in liquid form. Many countries are switching over to gas for their cars and buses because it’s cheaper and pollutes far less. Yet Obama’s budget punishes natural gas drillers. For some reason, our technocrats have determined that our economy needs to shift to an entirely different mode of power because, well, windmills look awesome and take away our guilt. A lesser person than I, one far more cynical, would think that green-boosters are more interested in manufacturing a crisis to meet a pre-existing agenda rather than finding the most cost-effective solution to a well-defined problem.
Thursday, March 26, 2009
Europe's Stimulus
Banking Regulation
Trade Wars
Wednesday, March 25, 2009
Money Illusion
Tuesday, March 24, 2009
Market Fundamentalists
How I Would Have Written BSG
Sunday, March 22, 2009
Ricardian Equivalence in Practice
The issue of whether Ricardian equivalence is a good approximation is closely connected with the issue of whether the permanent-income hypothesis provides a good description of consumption behavior. In the permanent income model, only a household's lifetime budget constraint affects its behavior; the time path of its after-tax income does not matter. A bond issue today repaid by future taxes affects the path of after-tax income without changing the lifetime budget constraint. Thus if the permanent-income hypothesis describes consumption behavior well, Ricardian equivalence is likely to be a good approximation. But significant departures from the permanent-income hypothesis can lead to significant departures from Ricardian equivalence.
We saw in Chapter 7 that the permanent-income hypothesis fails in important way's: most households have little wealth, and predictable changes in after-tax income lead to predictable changes in consumption. This suggests that Ricardian equivalence may fail in a quantitatively important way as well: if current disposable income has a significant impact on consumption for a given lifetime budget constraint, a tax cut accompanied by an offsetting future tax increase is likely to have a significant impact on consumption.
[...]
This discussion suggests that there is little reason to expect Ricardian equivalence to provide a good first approximation in practice. The Ricardian equivalence result rests on the permanent-income hypothesis, and the permanent-income hypothesis fails in quantitatively important ways.
There's something to be said for the assumptions of Ricardian Equivalence. You don't need people to be infinitely rational, only that deviations happen on both sides with equal probability. As much of the behavioral literature focuses only on the existence of deviations (Gambler's fallacy causes us to bet counter to the trend, while hot hand has us follow momentum), we don't have a great sense of whether distortions are systematically biased in equilibrium. The sort of crazy assumptions required could very well be reasonable approximations, ones that are consistent with the degree of foresight people seem to have--people seem to save for the future, leave bequests, and have cut down smoking and pollution drastically in response to more information.
Still, the empirical evidence is pretty lacking here. As someone once said, Economics is not Mathematics or Music; models not pretty or useful by themselves, but are only valuable to the extent they accurately represent reality.