Sunday, October 19, 2008

Given Skidelsky's Choice, I'm Clearly A Keynesian

An interesting post by Robert Skidelsky on Keynes and the current situation in the Washington Post:

"Every financial crash is different in detail -- today's started in the banking system, not the stock market -- but the anatomy of all is surprisingly similar: A speculative frenzy, triggered by some technical innovation such as mortgage-backed securities, that collapses when reality -- in the form of more sober valuations -- kicks in. "

The problem is that this is simply a description, not an explanation, and saying that people aren't omniscient or even wise, as he then says, can be taken as a criticism of a certain type of theory, I suppose, but it's not evidently so. More needs to be spelled out.

And this:

"Of course the problem of what a government can or should do to prevent or mitigate these financial storms is not disposed of by pointing out that economies don't behave in the way economists claim that they do.Keynesians want to create financial corridors to limit "the flight of the butterfly," in Paul Davidson's graphic phrase. Free-marketers argue that the cost of periodic crashes and massive rescue operations is worth paying to preserve freedom of capital movements and technological dynamism. Today, as the costs of the bailout mount up, this argument is heard much less. "

Given this choice, I consider myself a Keynesian, because I certainly don't think that periodic crashes and massive rescue operations are wise. However, I still consider myself a believer in free markets. One can question if this choice is the real choice we face.

Finally, I take Keynes to be a believer in free markets. Whether he is right or wrong on any particular issue involving government's role in our economy, I don't see him as a socialist. So, for me, I can learn from Friedman and Keynes, wherever I eventually come down on any issue.

5 comments:

Anonymous said...

f you would onlyb read my book JOHN MAYNARD KEYNES by Paul Davidson (Palgrave, 2007) in Palgrave's series on "Great Thinkers in Economics" you will find that Keynes's view of uncertainty -- which I demonstrate is equal to throwing out the classical ergodic axiom underlying laissez faire economics of all types including Austrian economics.

IOf you want to know something about future events, statistically you should draw a sample from the future and analyze that sample for its moments around the mean.

Since that is impossible classical theoprists and econometricians draw samples from past and present market data and assume the ergodix axiom.

The ergodic axiom presumes that the probability distribution that governs past and present outcomes will also govern future outcomes. Thus one can statistically analyze past and present market data, assuming the ergodic axiom is applicable, to get actuarial (statistical reliable) forecasts about future outcomes and thereby "know" the probabilistic risks involved. This is the basis of all the risk based mathematical computer models used in Wall Street today- - e.g.,the Black-Scholes model etc.These models presumed the future is predetermined by "market fundamentals" thast exist today and in the past! [Of course when the money managers are slling their product to the public, the law requires them to warn that "past performance does not guarantee future results" in other words the ergodic axiom is not applicable.]

Keynes rejected the ergodic axiom and therefore presumed the economic future is not only unknown -- but is going to be "created" by decisions made today and in the future. Uncertainty is therefore an ontological concept in Keynes.

The Austrians also say thee future is uncertain-- and so did Frank Knight -- but, for them, as I explain in my book, the uncertainty about the future is due to the inability for humans to possess sufficient calculation capacity to identify future events resulting from the presumed ergodic economic environment. Austrians and libertarians are assuming epistomological uncertainty.

Thus, when decisions are made in the Austrian model, those who make decisions that from hindsight turn out to be correct, are making decisions "as if" [to use Milton Friedman's phrase} they knew the ergodic statistical probability distribution that determined today's and tommorrow's economic outcomes and they will be rewarde. The fools, from hindsight, who do not make correct decisions will die a Dawinian death. Thus the mmarket produces a "survival of the fitess" mentality.

For Austrians, the market place is the COMPUTER that can solve the risks that are already PREDETERMINED by the presumed existing ergodic system that determines tomorrow's outcomes

For Keynes then, in a nonergodic world, there is a necessity to creat institutions and rules (laws and rfegulations)that prevent the economy from going to the dogs -- cause the mmarket won't do it!

Paul Davidson

Donald Pretari said...

Wow. Thanks for your comment. I'm going to need time to digest it. Your book sounds truly interesting. I'll try and read it in the future and comment on it if I can understand it, or even if I can't. I'll also go ahead and mention it on my little blog, although don't expect much from that.

I'm by nature a synthesizer, I suppose. I can find a way to combine Nozick and Rawls, for example, although I rely more on Nozick.

Another way to say this, is that I hold to a weak form of positive liberty and a strong form of negative liberty. Most libertarians, I suppose, don't hold to positive liberty at all. That's why I'm a libertarian Democrat.

As to your point about uncertainty, I'm not sure I see the difference. If you can't know the future, then you can't know the future. Surely predictive power is determined by its ability to predict the results. Few would buy a gambling book that guaranteed losing.

I believe that the free market works best. However, two caveats:

1) A person can argue that we trade some efficiency for equality on moral grounds.

2) I believe that, in our society, their is a kind of wealth effect. People are more willing to leave the government out of things to the extent that they feel that they can take care of themselves, or that they will be protected from being destitute. Absent that, government will always intrude in our lives.

Finally, although I'll need time to think about your points more, I'm a skeptic philosophically, and scientifically. I'm a follower of Feyerabend, Rorty, Cavell, Wittgenstein, and Austin. Reason does not banish the skeptic, but rather, it summons the skeptic.

Anonymous said...

I am not surprised by your response. Most people have a knee jerk reaction that free markets -- because they are "free" must be good-- since freedom is good.

But even the most libertarian person, recognizes the need for government to produce and ENFORCE property laws. Without such laws the meek could not inherit the earth. The strong could merely take over the property of the weak!!


Most people can not catch the clues that Keynes was throwing to them, because their mind is so cluttered with laissez-faire sound bites, that they no longer think about such things.

In a market oriented, entreprenerial, money using economy, money contracts are the essence of all economic activity -both production and exchange.

We require the STATE to enforce contracts entered into by individuals of their own free will -- unless one side or the other engages in FRAUD. One of the problems in the sub prime mortgage crisis is that many individuals signed mortgage contracts that either explicitly , or indirectly via the other side useing fraudulent representations to reach a contractual signing.

In a classical world, profit (income, utility) maximizing decision makers enter into contracts where both sides expect to be better off. In the certain world of neoclassical economics, the contract curve represents the situation where both parties to the contract "KNOW" they will be better off.

But time is a devise that prevents everything happening at once -- and therer is usually some time involved between contract signing and delivery and payment (forward contracts)

In the interim, even if both parties entered in to the contract expecting to perform as specified, something might happen, e.g., lose of sales, loss of jobs, etc that prevents one party or the other to perform as required. Both parties exxpect the State to enforce contractual obligations if either party tries to renege--even if it is not the fault of the reneging party.

If one has enough liquidity then one can always meet one's obligations as they come due. The financial crisis currently is because no lender can confidently lend to a counter party and feel secure that the borrower will be able to service the debt, in this era of fear when securitized assets such as mortgage backed securities have suddenly become illiquid. Why? Read my book -- chapter 7.

Donald Pretari said...

"The financial crisis currently is because no lender can confidently lend to a counter party and feel secure that the borrower will be able to service the debt..."

I would put the emphasis on the feel. As well, and here you and I will disagree, I believe that there is now some doubt as to what the government will expect from investors or businesses if they need a bailout, making it a far less attractive option, oddly, than it just recently was. Many trades, for example, are decently collateralized by normal standards, and yet still not being made. That's why I say feel.

Now, it has been a while since I read him, but that's where I expected Keynes could be of some use now.

Anonymous said...

You say "decent collateralized trade" means that everyone knows the market value of the collateral. For everyone to know the value of the collateral, there must be a well-organized and orderly market for the underlying asset that is pledged as collateral.

AS I explain in my book JOHN MAYNARD KEYNES [Palgrave, 2007] in order to have a well organized, orderly market there must be a "market maker", i.e., an institution who pledges to swim against any selling tide to pre4vent the next market price to be very different than the last price.
Liquidity requires orderly markets!

Now for Mortgage Backed SEcurities [MBS], investment banks organized markets, i.e., they "securitized" the MBS -- but they would not operate as the market maker in these markets they organized. Thus when everyone wants to sell and no one wants to buy-- the market fails as no one "knows" what the asset is worth.

If the SEC requires "mark-to-market" on the balance sheet of holders of these "securitized" assets (that have become basicall illiquid), then the evaluation of these (toxic) assets will be deadly . All this is explained in detail in my KEYNES book and you can also see my arguments on my web page www.econ.bus.utk.edu/davidson.html

in some of my articles on these matters (e.g., "Securitization, Liquidity and Market Failure" or "Evaluating Toxic Assets..." and others )in terms of what is currently happening in financial markets.

Paul Davidson



If that assett is a house or some other "real" asset, then thereis being tr