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AI does not have enough experience to handle the next market crash

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Artificial intelligence is increasingly used to make decisions in financial markets. Fund managers empower AI to make trading decisions, frequently by identifying patterns in financial data. The more data that AI has, the more it learns. And with the financial world producing data at an ever-increasing rate, AI should be getting better. But what happens if the data the AI encounters isn’t normal or represents an anomaly?

Globally, around 10 times more data (pdf) was generated in 2017 than in 2010. This means that the best quality data is also highly concentrated in the recent past—a world that has been running on cheap money, supplied by central banks through purchases of safe securities, which is not a “normal” state for the market. This has had a number of effects, from causing a rise in “zombie” firms to creating generational lows in volatility to encouraging unusually large corporate buybacks (pdf).

With so much data residing in this era, AI might not know what a “normal” market actually looks like. Robert Kaplan, the president of the Federal Reserve Bank of Dallas, recently pointed out some of the market extremes that exist today. The essay included a caution that growing imbalances in the economy could increase the risk of a rapid adjustment.

  • US stock market capitalization is now around 135% of GDP, the highest since 2000;
  • Corporate debt is at record highs;
  • Trading volume for 2017 on the New York Stock Exchange is down 51% from 2007, while the NYSE market capitalization is up 28%;
  • Record low volatility where the US market has gone 12 months without a 3% correction.

Today’s volatility is “extraordinarily unusual,” Kaplan noted. Cheap credit makes markets less volatile. When credit is easy, a company can rely on the promise of cheap debt to support itself so the value of equity becomes less volatile. Markets have experienced periods of low volatility before—and each time they have ended with a shock. If this current period ends violently, AI trained on predictable central-bank money flows will be unable to reconcile what it sees in new data from what it’s been trained on.

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Article Credit: Quartz

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