"At Least Two-Thirds of China Economy to Stay Shut Next Week:"
Fourteen provinces & cities in China "have said businesses need not start until at least the 2nd week of Feb. They accounted for almost 69% of China’s GDP in '19." – RJ O'Brien
— Carl Quintanilla (@carlquintanilla) January 31, 2020
The main risk comes not from the drop in production, which China can make up for later in the year, but the disruption in the supply chains causing the uncertainty in production output of the companies not explicitly associated with China. Most companies build supply chains with very little redundancy in order to improve efficiency, so any gaps will seriously affect them. And there’s always a risk that shutdown in China may be extended even further.