Archive for the ‘Economics’ Category

The two economists that have most informed my view of the current macroeconomy are Arnold Kling and Scott Sumner. In both cases, their models and explanations make sense to me.  They use solid reasoning and evidence; I don’t feel I’m getting a lot of hand waving. Unfortunately, at first glance, their views seem mutually exclusive.  Kling believes business cycles are the result of many planning errors by individual agents (for example, this recent post and this follow up).  Sumner believes business cycles are the result of contractionary monetary policy by the central bank (for example, this recent post and this one).

How can they both be right? I think they are operating at different levels. Yes, individual agents make their particular planning decisions.  In aggregate, these decisions drive monetary variables like interest rates, exchange rates, liquidity demand, etc.  However, these variables then feed back into the next round of planning decisions.  Moreover, at least some of these plans take into account the effect of the agent’s actions on the monetary variables.  So you get classic chaotic/complex behavior with temporarily stable attractors, perturbations, and establishing new regimes. There may even be aspects of synchronized chaos. I think the monetary variables are the key emergent phenomena here.  They are like “meta prices” that provide a shared signal across just about every modern economic endeavor.

Food for thought.  I’m going to keep this in mind when processing future articles on the economy and see if it helps my thinking.

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The following quotes are from a book describing a real set of events:

[The incident] is an extraordinary example of what happens when you get… a dozen people with an average IQ of 160… working in a field in which they collectively have 250 years of experience… employing a ton of leverage.

It’s hard to overstate the significance of a [government-led] rescues of a private [corporation].  If a [company], however large was too big to fail, then what large [company] would ever be allowed to collapse?  The government risked becoming the margin of safety.  No serious consequences had come about in the end from the… near-meltdown.

Was the incident:

a) The savings and loan scandal

b) The collapse of Enron

c) The sub-prime mortgage meltdown

d) none of the above

First correct answer gets to invest in an exciting new bridge project I’m involved with in New York!

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It is by now common wisdom that our current financial crisis is due in large part to misplaced incentives in our financial system. Analysts and fund managers were rewarded for short-term thinking and risk-taking. If we can rework our financial system to reward long-term, careful planning, it is often argued, we can avoid collapses like this in the future.

While I agree that misplaced incentives were a fundamental problem, the question of how to change this is rather more deep and complex than I think many people realize.


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I apologize for the non-existent blogging the past few weeks.  I’ve been really busy with my new company.  I’m going to try blogging more short items rather than my trademark essays in the hope that reduced barrier to entry will result in more supply.

First up is a provocative post by the ever-interesting Scott Sumner.  Rafe in particular should read it because Sumner starts from one of Rafe’s favorite premisse that “laws” of nature are purely cognitive constructs.  We should measure them by their usefulness and not ascribe to them any independent existence. So Newton’s laws of motion are useful in certain contexts.  Einstein’s are useful in others.  But neither are ground truth.  Moreover, we will never find ground truth.  Just successively more accurate models.

Sumner uses this bit of philosophy to justify abolishing inflation, not, “…the phenomenon of inflation, but rather the concept of inflation.”  More specifically, price inflation. He explains why this concept is ill-defined and not only unnecessary, but confusing, for understanding the macroeconomy.  He asserts that we should expunge it from our models.  It doesn’t really exist anyway, so if models do better without it, we won’t miss it in the least.

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Mike Ritchey of mountain bike fame is helping Rwandan coffee farmers cut the transport time (increasing their selling price) from the field to the washing stations by providing them with custom “Coffee Bikes” on a micro loan basis. These bikes replace the wooden bikes (including wheels) that they have been using. You can now own one of only 200 limited edition coffee bikes coming to the U.S. Be uber-cool when you ride down to the local java hole.

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Who wants to pay for email? You just might. Many people have suggested that adding a nominal cost to e-mail would serve to fight spam by rendering it largely unprofitable. With Centmail, some Yahoo researchers propose adding a penny postage stamp to each e-mail, representing a penny donation to charity. Since most people already donate to charity, it is not believed that this idea will actually cost anything.

In an effort to make Centmail a reality, a formal protocol and API has already been developed. While I am somewhat worried that a large-scale adoption of the protocol will incentivize significant non-profit and charitable fraud, the economic burden due to spam should be greatly reduced. It’s a cool idea by good people and I urge you to check it out.

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Pursuant to my earlier post, it turns out there already is such a group:

Foreclosure Angel Foundation

Thanks to Marissa Chien who found it and pointed me to it.  She also suggests that people who are having trouble with their mortgage should seek advise from HUD.  Information is power and many people (I’ve learned) are irrationally scared of approaching their lender and negotiating.  More and more lenders are willing to cut deals to avoid foreclosures.

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