FOR DECADES China has put overseas capital to work. Officers inspired Western companies to commerce know-how for entry to its huge market, serving to to construct up Chinese language opponents that had been typically higher and at all times cheaper. They started delivery items westwards. The ensuing “China shock” is commonly blamed for inflicting financial dislocation and despair in America’s industrial heartlands. Now, nevertheless, it’s China’s flip to fret about offshoring. Its producers are chickening out.