Over at HBR Amar Bhidé has written an article discussing the housing market and subsequent crash (very interesting – entire thing here) and proposes that among the causes of the crash, a sort of self restriction had taken the market from a vibrant one to one controlled by centralized authority:

The modern economy creates and spreads unprecedented prosperity by drawing on the resourcefulness and enterprise of the many, not by blindly following the dictates of a few. Individuals today make and act on their own judgments to a degree that would have been unimaginable to our forebears….

In recent times, though, a new form of centralized control has taken root—one that is the work not of old-fashioned autocrats, committees, or rule books but of statistical models and algorithms. These mechanistic decision-making technologies have value under certain circumstances, but when misused or overused they can be every bit as dysfunctional as a Muscovite politburo….

His argument is one we’ve heard from the military and other agencies as well – what they needed was more human intelligence on the ground, not more technical complexity from high.

He continues:

…Consider what has just happened in the financial sector: A host of lending officers used to make boots-on-the-ground, case-by-case examinations of borrowers’ creditworthiness. Unfortunately, those individuals were replaced by a small number of very similar statistical models created by financial wizards and disseminated by Wall Street firms, rating agencies, and government-sponsored mortgage lenders. This centralization and robotization of credit flourished as banks were freed from many regulatory limits on their activities and regulators embraced top-down, mechanistic capital requirements. The result was an epic financial crisis and the near-collapse of the global economy. Finance suffered from a judgment deficit, and all of us are paying the price….

Even going so far as to invoke Hayek to make the case:

The great twentieth-century thinker Friedrich Hayek made the classic argument for decentralized choice in his essay “The Use of Knowledge in Society.” The stability of the economy depends on constant adjustments to small changes, he believed—“B stepping in at once when A fails to deliver.” No single individual has the knowledge to make those adjustments; rather, it is widely dispersed across many individuals. But information about “the circumstances of the fleeting moment” cannot be quickly and accurately communicated to a central planner. Therefore, individuals who have on-the-spot knowledge must be allowed to figure out what to do….

Adaptation to changes—the focus of Hayek’s article—is only part of the story. The success of the modern economy also depends on innovation. As it happens, decentralization beats central planning here, too. Innovations are unprecedented, one-of-a-kind developments. Even incremental ones require imagination. An innovator cannot simply rely on historical patterns in placing bets on future opportunities. Knowing what has worked before and what hasn’t is but a starting point. Innovation also requires considerable trial and error. Unforeseen technical problems—or customers not doing what they had told market researchers they would—demand recalibrations that combine on-the-spot observations and historical knowledge with leaps of imagination….

Of course like most writers who seem to espouse the virtues of decentralization, he still thinks some things need centralized control which don’t:

Technologically advanced societies couldn’t function without some centralized control, of course. Governments need to regulate how businesses drill for oil, develop genetically modified crops, and pick the paints they use in toys, for instance….

Either way, he goes on to argue that the financial industry, using mathematical formulas and statistical models, embraced a sort of top-down control giving rise to “Mechanistic Decision Making” & “Robotic Finance”.

This basic line of reasoning isn’t exactly new.  Wired had an article in February of 2009 (here) about the risk formula which killed Wall Street.  The formula worked well for 5 years as investors used it as a way to measure pooled risk in MBSs (mortgage backed securities), but the formula:

…still hadn’t solved all the problems of mortgage-pool risk. Some things, like falling house prices, affect a large number of people at once. If home values in your neighborhood decline and you lose some of your equity, there’s a good chance your neighbors will lose theirs as well. If, as a result, you default on your mortgage, there’s a higher probability they will default, too….

Now while both articles point to specific issues which helped the collapse, like most they conveniently left out all discussion in reference to the government’s role in perverting the incentives, but together I think they present an interesting challenge to those of us who believe in decentralization as a good (DA post on decentralization here).

& that is – can there be mechanisms put into place which actually help foster decentralized control since our history, both long term and recent, seems to indicate humans have a tendency towards centralized control at certain levels of complexity.

We see this through various disciplines such as anthropology, archeology, and history, that over the past 10,000 years or so, humans made a mass migration from the nomadic lifestyle which was practiced for nearly 200,0000 years, to villages, towns, and cities.

Using agricultural knowledge to help spur this transition, humans also started growing in population.  As more land became developed and could support more people, villages and towns grew into large cities & states.

With the advent of these new societal structures, came new power structures.  In nomadic communities, authority is handled from a tribal point of view.

This means that people don’t really have positions of authority which is spelled out by any specific power structure.  Their authority comes from their ability to influence.  So elders with specific knowledge are sought after for wisdom and help, without a formal power structure of say a judicial system.

With the growth of society, came the growth of power structures as they became necessary to handle the population explosion.  Things such as basic sanitation and clean water were large public work projects which required the control of enough resources (labor mostly) which heretofore had been impossible.

These beginning power structures, would eventually evolve into the world in which most of us find ourselves today: a world in which more of our daily lives are coming under scrutiny from centralized power structures.

& we’ve seen what these power structures are capable of doing, both good and bad.  While it allowed for greater sharing of knowledge through vibrant cities which pooled resources in denser areas, it also allowed for the pooling of resources for war.

Either way, in this case the centralized authority we can normally blame was there in multiple areas, but for this specific factor it was self imposed.

Indeed in looking at human history, it seems given some level of complexity we seek out centralized forms of control.  It might seem today as if humans would never pick governments and politicians as idiotic and with as much power as they have today, but these were gradual changes over generations.

Taken with the most recent example of self selected centralization, it may be we need to consider the possibility that humans tend towards this direction with or without institutions directly promoting centralized control.

More thoughts on complexity here