The exogenous shock of coronavirus has now spilled over into the real economy.
Equity markets as a predictor of recession
Research has shown that the U.S. economy tends to fall into a recession when two criteria have been met: (1) a decelerating rate of real GDP growth falls to about 1% or lower per year, which sets the stage for (2) the likelihood that an unforeseen event or monetary or fiscal policy error becomes the catalyst for pushing the economy into outright recession. The metaphor for thinking about this is the single drop of water falling into an ice-cold pond, which then becomes the catalyst for the pond turning into a sheet of ice. The catalyst for turning sluggish slow economic growth into a recession can be anything from the start of a war, an oil crisis, or the bursting of a financial bubble. The adverse event then leads to a loss of confidence in the ability of the monetary and fiscal authorities to control the crisis or to create the climate for the restoration of normal economic behavior and growth, which is precisely where we find ourselves now. In this latest cycle, the focus of the world turned from the trade war with China and the pre-existing manufacturing recession to the coronavirus crisis and its implications for the whole of society.The past 10 days have seen the single-worst decline in stock market history.


The stock market is not the economy
The stock market is not a perfect indicator of the direction or level of economic growth. There have been episodes during the modern economy when stock market returns outstripped economic growth, and vice versa. For example, after a disturbing drop in the stock market during the last quarter of 2018, which wiped out an entire year of profits – perhaps the first signal of a fragile economy and an impending economic downturn — the stock market rebounded in 2019 even as growth was decelerating.

A shifting composition of economic activity
There have recently been dramatic shifts in the makeup of the economy, with manufacturing taking a backseat to the service and tech sectors. There is also the rise of oil extraction which has propelled the U.S. to one of the top three producers and exporters of oil. Before 2008, the relationship between the rate of change of oil prices and the point-to-point yearly return from an investment in the S&P 500 was predominantly negative, with higher prices of oil a factor in decreased consumer spending and decreased business profits, all leading to lower GDP growth. After the 2008-09 recession, and with improvements in shale extraction technologies, the energy sector became a positive factor in U.S. economic growth, with higher prices of oil pushing up the value of gross domestic product, while lower prices — such as during the 2014-15 commodity price collapse — leading to lower values of GDP output. That might explain the anxiety and equity sell-off caused by the price war between the two other top producers of oil, Russia and Saudi Arabia. The Saudis (OPEC) hoped to maintain the price of oil by cutting production, with the cut in supply offsetting the global drop in demand for oil brought on by the coronavirus health crisis and general economic slowdown. When the Russians balked, the Saudis instead took the opportunity to increase production, with an oil glut causing prices to drop below the break-even level for Russian producers and the more expensive shale extraction in the U.S. and Canada. The addition of an oil glut collapsing prices at the same time the coronavirus began to pick up steam in its global spread has further hampered economic activity.