Models vs. Experiments

John Hinderaker writes,

I am particularly interested in the IHME project because it includes state-by-state forecasts. For Minnesota, it currently projects 1,039 deaths. This is in marked contrast with the model on which Minnesota’s governor claims to have relied when he issued the state’s shutdown order. That model, according to the governor, projected more than 70,000 deaths in the state unless people were ordered to stay home and businesses were closed. He hasn’t said, to my knowledge, how much good his stay-home order will do, according to the same model.

I have a distrust of computer models that goes back a long time. Coincidentally, today the latest issue of EconJournalWatch is out, including my piece on why Edward Leamer, a skeptic of econometric models, deserves the Nobel Prize. I’ll say more about that in a post later this week.

It amazes me that people trust computer models as much as they do. Have they forgotten how computer models performed in rating mortgage securities prior to the financial crisis of 2008?

I would prefer to base decisions on experiments, not on models. For example, on the utility of masks, I think that the best evidence we have is the quasi-experiment of Hong Kong and Taiwan vs. Europe and the U.S. But I would be happy to see an experiment in which similar communities adopt different approaches, with one of approach being the lockdown and another approach being allowing people to go to work and school wearing masks.

As you know, I would like to see experiments performed to see how the virus spreads (testing the “doorknob effect,” for example), And a careful study of a random sample of the population to try to get a handle of how many people have the virus currently and how many people have had the virus.

Loss of libertarian focus

Ross Douthat has a column on the way ideology influenced pundits’ reactions to the virus crisis.

Along with infectious-disease specialists, the people who seemed most alarmed by the virus included the inhabitants of Weird Right-Wing Twitter (a collection of mordant, mostly anonymous accounts interested in civilizational decline), various Silicon Valley eccentrics, plus original-MAGA figures like Mike Cernovich and Steve Bannon. . .

Meanwhile, liberal officialdom and its media appendages were more likely to play down the threat, out of fear of giving aid and comfort to sinophobia or populism. This period was the high-water mark of “it’s just the flu” reassurances in liberal outlets, of pious critiques of Donald Trump’s travel restrictions, of deceptive public-health propaganda about how masks don’t work, of lectures from the head of the World Health Organization about how “the greatest enemy we face is not the virus itself; it’s the stigma that turns us against each other.”

. . .The fact that the virus seemed poised to help Democrats and hurt the Trump administration, the fact that it was being hyped by CNN and played down by Hannity, the fact that Trump himself declined to take it seriously — all of this mattered more to many Republicans than the fear of foreign contamination that the virus theoretically should have activated

As you might remember, my wife and I started our stay-at-home policy on March 12. So I was hardly the first person to take the virus seriously, but I was ahead of many people, especially elected officials. At that point, I did not have an ideological axe to grind.

On March 21, when I wrote my virus economics FAQ, I was trying to explain why the virus crisis posed a problem for individualism. That is, many people would tend to want to go out and not take into account the risk that they could infect others.

In the last several days, I have become less receptive to what government is doing. I remain committed to taking the virus seriously. But I have very low confidence in the health “experts.” Instead, of carefully experimenting and learning, they are flailing–“tampering,” as quality control guru W. Edwards Deming used to refer to it. And my confidence in mainstream macroeconomists and their remedies, which was never high before the crisis, is even lower now.

I would like to see an effective libertarian opposition to current policies. But that is difficult for me to jump-start, in part because some libertarians seem committed to a version of virus denialism that I do not share. Meanwhile, others on the right (I hesitate to call them libertarians) seem to be driven primarily by pro-Trump (or anti-Democrat) partisanship. Rather than fight the “stimulus,” they spent their energy denouncing Speaker Pelosi for temporarily obstructing it.

The number of mouths trying to get attention exceeds the capacity of available ears. As another libertarian pointed out to me, even the presumptive Democratic Presidential nominee has trouble getting noticed these days.

The EMH in view of the crisis

Question from a reader:

I’d be very interested to hear your thoughts about what we should conclude about the efficient markets hypothesis based on the recent events.

I’ve always been convinced in the truth of (semi-strong) EMH and handled my finances accordingly. However, my conviction was greatly shaken by the recent events. It seems clear that in the weeks preceding the financial crash earlier this month, the markets had completely ignored the evidence of the coming COVID-19 pandemic and the shock it would cause.

One month ago, on March 1, I sent the following to family members.

Folks,
Here are my thoughts on the stock market. Basically, I think that there is a chance that it could fall much further, and my own reaction will be to sell some stock market mutual fund shares and park them in a money market fund for a while. You might want to look into doing that with some of the stock market mutual funds you have in retirement accounts–shift them from stock mutual funds to money market funds, still within the retirement account family. No tax implications from doing so.

My thinking is that with the coronavirus, the number of shutdowns and travel restrictions is going to increase. The economic adversity this is likely to cause is not something that can be mitigated by the Fed, even though some people seem to attribute magical powers to the Fed..

If I thought that people would get over the initial panic and get back to normal soon, I would not be so pessimistic. But my guess is that instead the panic will get worse. even if the virus itself were to turn out to be a non-event. Hence, the economic consequences of the reductions in trade, travel, and tourism will still be quite severe.

My $.02

This was very unusual for me. I cannot remember ever offering market timing advice before. Incidentally, the first big market move after I sent this was the huge “Biden rally.” So for a couple days I looked pretty bad.

My general view of the Efficient Markets Hypothesis is that I don’t believe it, but I act as if it is true. I treat the market as ignorant, so I do not interpret stock market movements as if they forecast the economic outlook. But I figure I am at least equally ignorant, so I almost never try to outguess the market.

If we are back to me being equally ignorant, then it probably would make sense to get back in. But I have such a negative view of the stimulus compared to the Wall Street view that I am willing to wait a while for proof that I am the one who is stupid.

On a somewhat related note, some angry commenters asked me where I am putting my wealth in light of my post on the inflation virus, with which they vehemently disagreed. I am glad that so many people refuse to believe the inflation scenario, because that gives me more time to think about it. The hard assets that I might want to buy are going to remain cheap for a while.

I know that there are inflation-indexed Treasury securities (TIPS), and they may turn out to be the best choice, but I am not sure. Remember, what I foresee is a scenario in which the government is printing money as a last-ditch desperate attempt to pay its bills. Owning the debt instruments of a government in such dire straits does not strike me as risk-free.

A trial Zoom meeting for Citizens’ Daily Briefing

at 6:30 pm eastern time today, March 31. Meeting id 824-584-0623.

It will be a learning experience.

[UPDATE: I really got a lot out of it! I think that there is a real appetite for something with an alternative point of view. But I decided that I need to think more carefully about structure. The trick will be to balance the advantages of a central focus with the fact that many people have something to contribute.

I am going to take what I learned from this and brainstorm with some other like-minded folks and then come back with another iteration, hopefully soon.

Other comments welcome.]

Citizens’ Daily Briefing

I have reached the point where I am afraid that we are permanently losing our way of life. When government obtains new powers in a crisis, it does not relinquish them. When the Fed is going to have power to control more capital than all of the bank loans and corporate bonds combined, that is going to make the American economy like the Chinese economy, where the government also acts as the central source of credit. On the fiscal front, we may never again see Federal government is taking on a share of the economy not seen since World War II, starting from a higher debt level than we ended the war with, and with no thought whatsoever of future fiscal austerity.

I disagree with the elite consensus in two ways. First, I do not think that we should rely so heavily on the stay-at-home strategy and we ought to at least in some region try the masks-and-scarves strategy. Second, I think that the “stimulus” is misguided. At the very least, the government should have a plan to undo the increase in debt and a plan to unwind the huge Fed balance sheet.

If we are going to get off this disastrous course, people who agree with me will have to be heard. My thought is to try to start some sort of discussion about how to do this.

President Trump and his virus task force seem to give daily briefings. I would like to see citizens get together, say on Zoom, to give their own briefings. Call this idea Citizens’ Daily Briefings.

My dream is that eventually every day there would be several thousand different online meetings, each with a few dozen participants, discussing these issues and coming up with ways to pressure the elites to change course. You can think of this as a modern version of Committees of Correspondence.

I would like to hear comments from anyone who would like to see this idea work. I know what I am proposing is difficult to execute and likely to fail. It may not be desirable to try. But I don’t need to hear any of that. Negative, hostile, and snarky comments are not welcome. If you don’t buy into the spirit of the idea, just keep silent.

UPDATE: at 6:30 pm eastern time today, March 31. Meeting id 824-584-0623. Going to try a Zoom meeting. A learning experience.

Repeal the CARES act

Amit Seru and Luigi Zingales write,

The need to help individuals and small firms has provided cover to the largest corporate subsidy program in U.S. history. Under intense pressure from lobbyists, the Cares Act allocates $510 billion to support loans for large businesses. A small chunk of this money ($56 billion) will be used directly by the Treasury to grant loans to airlines and other “strategic” firms (read: Boeing). The Treasury will then confer the rest ($454 billion) to the Federal Reserve to absorb losses the Fed might incur in lending to firms in the private sector.

The expectation is that the central bank will leverage this money 10 to 1, enabling it to lend up to $4.54 trillion to companies. That sum is more than all U.S. commercial and industrial loans outstanding at the end of 2019 ($2.35 trillion) plus all the new corporate bonds issued during 2019 ($1.41 trillion). Thus, if this capital is all deployed by the Fed, and at rates that will surely crowd out private capital, all capital allocation in the U.S. in 2020 will be done by the Federal Reserve System, not by the capital market.

Their recommendation is for more transparency and oversight. Really? Our country has switched to an economic system somewhere to the left of Bernie and barely to the right of Lenin, and you would be satisfied with transparency and oversight?

I applaud Seru and Zingales for coming forward to point out the radicalism in the CARES act. But it requires a more radical response.

The formal sector and the informal sector

Timothy Taylor writes,

Here’s are some columns from a table from the World Employmentand Social Outlook: Trends 2020 published by the International Labour Organization in January 2020. As the report points out, around the world about 60% of workers have informal jobs; in low-income countries, it’s more like 90%

Read the whole post. The ability to cooperate in groups above the Dunbar number is extremely important for economic development. You might hate big corporations, but they are actually a miracle of civilization, as Tim and others have pointed out.

Longer term health insurance policies

Hanming Fang and others write,

Under long-term contracts, sick individuals pay relatively low premiums and compensate by paying relatively high premiums in healthy times of their life. In theory, a carefully designed long-term contract can reduce the risk of premium fluctuations due to health shocks (“reclassification risk”), while ensuring participation and eliminating adverse selection

This was the health insurance solution that I advocated in Crisis of Abundance in 2006. The authors look at an version that is used by about 10 percent of the insured population in Germany.

The main contribution of our paper is to provide a systematic welfare analysis of an existing, simple real-world alternative long-term contract with a distinct advantage of low information requirements for implementation. We show that, even though the GLTHI [German long-term health insurance] contracts are theoretically not optimal, they provide a close approximation in terms of welfare to the optimal GHHW contracts by providing better reclassification risk insurance at the cost of less intertemporal consumption smoothing

Today’s spending, tomorrow’s taxes?

A commenter asks,

With plan B the taxes happen sooner. With plan K the taxes happen later. We will scramble to produce output to pay those taxes later so the difference between B and K is just the timing of taxes. Apparently you don’t agree so I’m asking why?

Because no one will vote for the necessary tax increases. Look, they could do it now if they wanted to. They are spending 50 percent more in 2020 than they did last year. They could enact tax increases to go into effect in 2021 and later to pay for that spending. But they won’t. That’s even assuming that an increase in tax rates would actually work to increase revenues, which is no sure thing.

After World War II, we restored fiscal health with economic growth and Dwight Eisenhower. Economic growth meant that even though tax rates were not increased to pay off the debt, tax revenues went up.

Because we were willing to cut government spending from its wartime levels, and because Eisenhower had old-fashioned values about fiscal responsibility, for more than a decade we ran what economists call primary surpluses. The primary surplus is the government deficit if you do not include interest payments. If interest payments are $50 and the deficit $80 $20 (good catch by a commenter0, then the primary surplus is $30. If you keep running a primary surplus long enough, the interest payments keep falling until you no longer have a deficit. It’s like if you keep paying off some of the principal on your credit card, eventually you get out of debt.

But in case you haven’t noticed, Dwight Eisenhower is no longer President. We aren’t running primary surpluses, and we are not going to. We had some nice economic growth in the 1990s, and it took a while for Washington politicians to catch on, so the fiscal situation improved for a couple years. We had some slow economic growth from 2011-2019, and even though the Obama and Trump Administrations outspent the resulting increases in tax revenues, the Federal debt increased only gradually.

And now we have that 50 percent increase in spending. With more to come, probably. And no tax increases.

10 percent of GDP here, 10 percent of GDP there, and soon you are talking about real money. Of course I could turn out to be wrong, but I think this time we will catch the inflation virus.

AEI paper on virus containment policy

Written by Scott Gottlieb and others. They call it a road map to reopening, and it includes various benchmarks and milestones that might be used in deciding when to lighten up on the shut-downs. Pointer from Yuval Levin.

My main quibble with it is that I think that we should at least try a “masks and scarves” strategy in one city and compare it with the “shut down the economy” strategy in a comparable city. Although the report recommends using masks or face-covering fabric, it does not consider that this might substitute for strangling local economies.

[UPDATE: You want to object, “We can’t experiment with people’s lives in a crisis!” My response is that we are doing exactly that. We are experimenting with various lockdown policies, but not in a way that allows us to learn from the results. ]

For the future, the report recommends,

The COVID-19 pandemic has exposed serious gaps in our nation’s pandemic preparedness. COVID-19 will not be the last public-health emergency to threaten American society. We must invest in the scientific, public-health, and medical infrastructure needed to prevent, detect, and respond to the next infectious disease threat.

. . .We need to move away from a decentralized system that promotes unequal implementation of preparedness measures across the nation and toward more coordinated execution of response. . .Preparedness for public-health emergencies should be elevated as a function in the White House, with a coordinating function analogous to the director of national intelligence.

I fear that this is exactly what will happen. But it embodies a form of the Nirvana Fallacy, in which a big spending spree and consolidating power in a central agency are presumed to work. Some points to consider:

1. We already have a CDC, and it failed at its One Job. It may have done more harm than good, by trying to monopolize testing and by recommending against people wearing masks.

2. After 9/11, we created the TSA. Do we think that was cost effective? Remember to include the lost time for passengers. Plus the inconvenience and the effort it takes to implement workarounds for the restrictions on liquids.

We are in a Robert Higgs Crisis and Leviathan moment. Government officials always say in a crisis “We need more power.” They never relinquish it. Look at where the Fed’s balance sheet stood ten years after the “emergency” of 2008. It had not even come close to shrinking back toward its pre-crisis level. And now, of course, it will grow by another order of magnitude.

We have increased government spending by roughly 50 percent over last year. What do we expect to happen in 2021?

a) We go back to the old baseline level of spending.

b) We cut spending below the old baseline, as part of the process of restoring fiscal health.

c) We continued to spend about 50 percent more than the old baseline.

You and I both know that the answer is (c). Keynesians will be warning us that any “cuts” in spending will cause a recession. And politicians, having increased their ability to conspicuously bestow funds on various constituents, will not relinquish their enhanced control over resources.