What would happen to our own economy in such an event?
"What would happen to our own economy in such an event?"
The more relevant question is "what would happen to China's economy if it occurred?" We can operate comfortably without China while China would collapse without us. Over half of their exports go to America and our allies. While only 13% of our total imports are Chinese.
China Export Partners:(2004)
US 22.8%, Hong Kong 16.2%, Japan 12.4%, South Korea 4.4%
http://www.cia.gov