What Triggers Stock Market Jumps?
Scott Baker,
Nicholas Bloom,
Steven Davis and
Marco C. Sammon
No 28687, NBER Working Papers from National Bureau of Economic Research, Inc
Abstract:
We examine next-day newspaper accounts of large daily jumps in 19 national stock markets to assess their proximate cause, clarity as to cause, and geographic source. Our sample of over 8,000 jumps, reaching back to 1900 for the United States, yields several novel findings. First, jumps have become more grounded in readily perceived news developments over the past century. Second, news about monetary policy and government spending accounts for a highly disproportionate share of upward jumps. Third, upward jumps attributed to monetary policy and government spending shocks are much more likely after a stock market crash. In this sense, the “Fed put” emerged decades before the 1990s, characterizes fiscal policy as well, and extends to other countries. Fourth, jumps triggered by monetary policy foreshadow much lower volatility than other jumps. Finally, leading newspapers attribute 38 percent of jumps in their own national stock markets to US economic and policy developments. The US role in this regard dwarfs that of Europe and China.
JEL-codes: E44 E52 E62 F36 G12 G18 (search for similar items in EconPapers)
Date: 2021-04
New Economics Papers: this item is included in nep-cwa, nep-fmk and nep-mac
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Related works:
Working Paper: What triggers stock market jumps? (2021) 
Working Paper: What triggers stock market jumps? (2021) 
Working Paper: What triggers stock market jumps? (2021) 
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