An economic bubble of any type, but especially a debt bubble, can be thought of as an incipient black hole. When the bubble collapses in upon itself, it creates its own black hole with an event horizon beyond which all traditional economic modeling breaks down. Any economic theory that does not attempt to transcend the event horizon associated with excessive debt will be incapable of offering a viable solution to an economic crisis. Even worse, it is likely that any proposed solution will make the crisis more severe.
The Minsky Moment
Debt (leverage) can be a very good thing when used properly. For instance, if debt is used to purchase an income-producing asset, whether a new machine tool for a factory or a bridge to increase commerce, then debt can be net-productive.
Hyman Minsky, one of the greatest economists of the last century, saw debt in three forms: hedge, speculative, and Ponzi. Roughly speaking, to Minsky, hedge financing occurred when the profits from purchased assets were used to pay back the loan, speculative finance occurred when profits from the asset simply maintained the debt service and the loan had to be rolled over, and Ponzi finance required the selling of the asset at an ever higher price in order to make a profit.
Minsky maintained that if hedge financing dominated, then the economy might well be an equilibrium-seeking, well-contained system. On the other hand, the greater the weight of speculative and Ponzi finance, the greater the likelihood that the economy would be what he called a deviation-amplifying system. Thus, Minsky's Financial Instability Hypothesis suggests that over periods of prolonged prosperity, capitalist economies tend to move from a financial structure dominated by (stable) hedge finance to a structure that increasingly emphasizes (unstable) speculative and Ponzi finance.
Minsky proposed theories linking financial market fragility, in the normal life cycle of an economy, with speculative investment bubbles endogenous to financial markets. He claimed that in prosperous times, when corporate cash flow rises beyond what is needed to pay off debt, a speculative euphoria develops; and soon thereafter debts exceed what borrowers can pay off from their incoming revenues, which in turn produces a financial crisis. As the climax of such a speculative borrowing bubble nears, banks and other lenders tighten credit availability, even to companies that can afford loans, and the economy then contracts.
"A fundamental characteristic of our economy," Minsky wrote in 1974, "is that the financial system swings between robustness and fragility and these swings are an integral part of the process that generates business cycles." (Wikipedia)
But a business-cycle recession is a fundamentally different thing than the end of a Debt Supercycle, such as much of Europe is tangling with, Japan will soon face, and the US can only avoid with concerted action in the first part of the next year.
A business-cycle recession can respond to monetary and fiscal policy in a more or less normal fashion; but if you are at the event horizon of a collapsing debt black hole, monetary and fiscal policy will no longer work the way they have in the past or in a manner that the models would predict.
There are two contradictory forces battling in a debt black hole: expanding debt and collapsing growth. Without treading again on ground covered in many past letters, let's take it as a given that if you either cut government spending or raise taxes you are going to reduce GDP over the short run (academic studies suggest the short run is 4-5 quarters). To argue that raising taxes or cutting spending has no immediate effect on the economy flies in the face of mathematical reality. Note that I'm not arguing for one approach or the other, just simply stating that there will be consequences, either way. The country might be better off with higher taxes and/or more spending, or the opposite. But those choices are going to have consequences in both the short and long term.
Second, there is a limit to how much money a government can borrow. That limit clearly varies from country to country, but to suggest there is no limit puts you clearly in the camp of the delusional.
The Event Horizon
In our analogy, the event horizon is relatively easy to pinpoint. It is what Rogoff and Reinhart call the "Bang!" moment, when a country loses the confidence of the bond market. For Russia it came at 12% of debt-to-GDP in 1998. Japan is at 230% of debt-to-GDP and rising, even as its population falls – the Bang! moment approaches. Obviously, Greece had its moment several years ago. Spain lost effective access to the bond market last year, minus European Central Bank intervention. Other countries will follow.
As an aside, it makes no difference how the debt was accumulated. The black holes of debt in Greece and in Argentina had completely different origins from those of Spain or Sweden or Canada (the latter two in the early '90s). The Spanish problem did not originate because of too much government spending; it developed because of a housing bubble of epic proportions. 17% of the working population was employed in the housing industry when it collapsed. Is it any wonder that unemployment is now 25%? If unemployment is 25%, that both raises the cost of government services and reduces revenues by proportionate amounts.
The policy problem is, how do you counteract the negative pull of a black hole of debt before it's too late? How do you muster the "escape velocity" to get back to a growing economy and a falling deficit – or, dare we say, even a surplus to pay down the old debt? How do you reconcile the competing forces of insufficient growth and too much debt?
The problem is not merely one of insufficient spending: the key problem is insufficient income. By definition, income has to come before spending. You can take money from one source and give it to another, but that is not organic growth. We typically think of organic growth as only having to do with individual companies, but I think the concept also applies to countries. The organic growth of a country can come from natural circumstances like energy resources or an equable climate or land conducive to agricultural production, or it can come from developing an educated populace. There are many sources of potential organic growth: energy, tourism, technology, manufacturing, agriculture, trade, banking, etc.
While deficit spending can help bridge a national economy through a recession, normal business growth must eventually take over if the country is to prosper. Keynesian theory prescribed deficit spending during times of business recessions and the accumulation of surpluses during good times, in order to be able to pay down debts that would inevitably accrue down the road. The problem is that the model developed by Keynesian theory begins to break down as we near the event horizon of a black hole of debt.
