We have learned historically that if we can isolate sick people, we can often keep a communicable disease from spreading. Unfortunately, the situation with the new coronavirus causing COVID-19 is different: We can’t reliability determine which people are spreading the disease. Furthermore, the disease seems to transmit in many different ways simultaneously.
Politicians and health organizations like to show that they are “doing something.” Because of the strange nature of COVID-19, however, doing something is mostly a time-shifting exercise: With quarantines and other containment efforts, there will be fewer cases now, but this will be mostly or entirely offset by more cases later. Whether time-shifting reduces deaths and eases hospital care depends upon whether medical advances are sufficiently great during the time gained to improve outcomes.
We tend to lose sight of the fact that an economy cannot simply be shut down for a period and then start up again at close to its former level of production. China seems to have seriously overdone its use of quarantines. It seems likely that its economy can never fully recover. The permanent loss of a significant part of China’s productive output seems likely to send the world economy into a tailspin, regardless of what other economies do.
Before undertaking containment efforts of any kind, decision-makers need to look carefully at several issues:
- Laying off workers, even for a short time, severely adversely affects the economy.
- The expected length of delay in cases made possible by quarantines is likely to be very short, sometimes lasting not much longer than the quarantines themselves.
- We seem to need a very rapid improvement in our ability to treat COVID-19 cases for containment efforts to make sense, if we cannot stamp out the disease completely.
Because of these issues, it is very easy to overdo quarantines and other containment efforts.
In the sections below, I explain some parts of this problem.
We read a lot in the news about the new Wuhan coronavirus and the illness it causes (COVID-19), but some important points often get left out.
 COVID-19 is incredibly contagious.
COVID-19 transmits extremely easily from person to person. Interpersonal contact doesn’t need to be very long; a taxi driver can get the virus from a passenger, for example. The virus may be transmissible even before an infected person develops symptoms. It may also be transmissible for a few days after a person seems to be over the virus; it is possible to get positive virus tests, even after symptoms disappear. Some people may have the disease, but never show symptoms.
 The virus likely remains active on inanimate surfaces such as paper, plastic, or metal for many days.
There haven’t been tests on the COVID-19 virus per se, but studies on similar viruses suggest that human pathogens may remain infectious for up to eight days. Some viruses that only infect animals can survive for more than 28 days. China is reported to be destroying paper currency from the hardest hit area, because people do not want to accept money which may have viruses on it. Clearly, surfaces in airplanes, trains and buses may also harbor viruses, long after a passenger with the virus has left, unless they have been thoroughly wiped down with disinfectant. Continue reading
Recently, a new coronavirus has been causing many illnesses and deaths. The virus first became active in Wuhan, China, but it has already spread to the rest of China. Scattered cases have been identified around the rest of the world as well.
There are two important questions that are already being encountered:
- How much of an attempt should be made to limit the spread of the new virus? For example, should businesses close to prevent the spread of the virus?
- Should this disease be publicized as being far worse than flu viruses that circulate each year and cause many deaths among the elderly and people in poor health? The median age of those dying from the new coronavirus seems to be about 75.
Unfortunately, there aren’t easy answers. We can easily see the likely outcome of under reaction. More people might die of the disease. More people might find themselves out of work for a couple of weeks or more with the illness. We tend to be especially concerned about ourselves and our own relatives.
The thing that is harder to see is that reacting too vigorously can have a hugely detrimental impact on the world economy. The world economy depends on international trade and tourism. China plays a key role in the world economy. Quarantines of whole regions that last for weeks and months can have a very detrimental impact on the wages of people in the area and profits of local companies. Problems with debt can be expected to spike. The greater the reaction to the coronavirus, the more likely the world economy will be pushed toward recession and job loss.
The following are a few of my thoughts regarding possible overreaction: Continue reading
Energy Forecast for 2020
Overall, I expect that oil and other commodity prices will remain low in 2020. These low oil prices will adversely affect oil production and several other parts of the economy. As a result, a strong tendency toward recession can be expected. The extent of recessionary influences will vary from country to country. Financial factors, not discussed in these forecasts, are likely also to play a role.
The following are pieces of my energy forecast for 2020:
 Oil prices can be expected to remain generally low in 2020. There may be an occasional spike to $80 or $90 per barrel, but average prices in 2020 are likely to be at or below the 2019 level.
Figure 1. Average annual inflation-adjusted Brent equivalent oil prices in 2018 US$. 2018 and prior are as shown in BP’s 2019 Statistical Review of World Energy. Value for 2019 estimated by author based on EIA Brent daily oil prices and 2% expected inflation.