THE TWO PANDEMICS It is not good news when two pandemics are at work simultaneously. One can
within 30 miles within the previous 30 days, respondents’ assessment of the probability of a crash was significantly higher. That is the affect heuristic at work. It might make more sense to expect a stock- market drop from a disease epidemic than from a recent earthquake, but maybe not a crash of the magnitude seen recently. If it were widely believed that a treatment could limit the intensity of the COVID-19 pandemic to a matter of months, or even that the pandemic would last a year or two, that would suggest that the stock-market risk is not so great for a long-term investor. One could buy, hold, and wait it out. It is not good news when two pandemics are at work simultaneously. But a contagion of financial anxiety works differently than a contagion of disease. It is fueled in part by people noticing others’ lack of confidence, reflected in price declines, and others’ emotional reaction to the declines. A negative bubble in the stock market occurs when people see prices falling, and, trying to discover why, start amplifying stories that explain the decline. Then, prices fall on subsequent days, and again and again. Observing successive decreases in stock prices creates a powerful feeling of regret for those who have not sold, together with a fear that one might sell at the bottom. This regret and fear prime people’s interest in both pandemic narratives. Where the market goes from there depends on their nature and evolution.
feed the other. Business closures, soaring unemployment, and loss of income fuel financial anxiety, which may, in turn, deter people, desperate for work, from taking adequate precautions against the spread of the disease. Moreover, it is not good news when two contagions are, indeed, global pandemics. When a drop in demand is confined to one country, the loss is partially spread abroad, while demand for the country’s exports is not diminished much. But this time, that natural safety valve won’t work, because the recession threatens nearly all countries. Many people seem to assume that the financial anxiety is nothing more than a direct byproduct of the COVID-19 crisis – a perfectly logical reaction to the disease pandemic. But anxiety is not perfectly logical. The pandemic of financial anxiety, spreading through panicked reaction to price drops and changing narratives, has a life of its own. The effects that financial anxiety has on the stock market may be mediated by a phenomenon that psychologist Paul Slovic of the University of Oregon and his colleagues call the “affect heuristic.” When people are emotionally upset because of a tragic event, they react with fear even in circumstances where there is no reason to fear. In a joint paper with William Goetzmann and Dasol Kim, we found that nearby earthquakes affect people’s judgment of the probability of a 1929- or 1987-size stock-market crash. If there was a substantial earthquake centering
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April 2020
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