Professor Sinn speaking on the current situation on March 18, 2020
In our view, the two most substantial arguments against closing the stock markets fail to hold up in the face of the coronavirus crisis:
- The liquidity provided by the stock markets would freeze up, which would be grossly unfair to investors, who must have access to their assets. With all due respect, the production and productivity of the companies that are to be traded have also been frozen up after all, so would it not be consistent to also put the liquidity of trading these companies on ice? In actual fact, the investors whose money is vested in the stock markets must be protected from themselves just as much as the curfews serve to protect from themselves the citizens who might catch the virus. If the capital markets are to mirror what happens in the real economy, they must likewise be put on hold if the economy is suspended.
- OCT trading is intransparent and would increase if the official markets were to be closed. Therefore, stock markets are the preferred venue of trading especially in times like these, because at least they can be controlled. It goes without saying that OTC trade in company shares must be halted, too, in times like these. After all, we are not talking about the exchanges self-imposing a break when trade becomes too volatile but rather about temporary government measures whose effects extend much beyond the financial markets – and which must nevertheless incorporate these markets.
To merely close down the stock exchanges and to reopen them a few weeks later would be a somewhat naïve approach. The big question is, what will the starting share prices be, after much will have happened to the companies in the meantime, to some extent independently of the virus, so that all company values will have to be reassessed from scratch. To use the last trading prices before the close of the markets would lead to utter chaos on the opening day. However, it can also be argued that chaos on a single day is still the lesser evil compared to several weeks of chaos with unrealistic price fluctuations driven only by gamblers – yet that is precisely what we are looking at these days. German stocks expert Dirk “DAX” Müller has very aptly described what is currently happening on the exchanges, which are prone to being closed for weeks in any event, in a video from March 25, 2020 (see www.youtube.com/watch?v=eYHeE_hwt30 in German).
Speaking as a game theorist, I would like to propose a pragmatic solution, whose feasibility stock market theorists and politicians are welcome to debate: The stock markets should indeed remain open, but without processing any real trade for the time being. For as long as trade remains suspended in this fashion, all market participants will continue to be asked about their buying and selling offers every day on the basis of the currently available information, and a clearing price will be determined for every share. However, the transactions are not carried out right away but are rather accumulated over each trading day. At the end of each trading day, the government decides whether A) trading remains suspended, in which case all transactions of that day are void, or B) the markets are allowed to open in their usual form the next day. In that case, and only in that case, all transactions of the previous trading day are actually executed. Only this uncertainty regarding how the government will decide can ensure that real prices form during every day of the trading suspension, for each new suspended trading day may with hindsight in a sense turn out not to have been suspended after all.
Note that we must not confuse “real prices” with “realistic prices” at this point. The essential purpose of this “shadow stock exchange”, whose effect is suspended but which nevertheless operates in real terms, is to generate real prices. Due to the crisis, we may expect these prices to be very low. And it is precisely because these prices differ substantially from the companies’ value in a hypothetical world without a ban on economic transactions that we propose to also ban all transactions concerning shares in companies that are subject to transaction bans in the real economy.
The second major challenge brought forth by the coronavirus crisis that the shadow stock exchange can help to overcome is the allocation of the large government rescue package that is to benefit individual companies in the form of guarantees and credit. This allocation is currently achieved via the banking system in the form of credit commitments – with all due respect, a sufficiently chaotic and distortive procedure. This is exactly the point where the capital markets, whose transparency produces real prices, may come in handy. Every day, the shadow stock exchange in the form proposed above delivers current and real stock prices, which may be interpreted as the answer to the question, “If the markets were to open tomorrow, how much would this company be worth?” The difference between the share prices that prevailed before the onset of the crisis (or before the closing of the stock exchange, in case the onset of the crisis has already come and gone)) and the daily prices on the shadow stock exchange can constitute a meaningful key by which to distribute each daily ration of the government rescue package.
Dr. Gregor Berz
IFAMD GmbH, March 29, 2020