尽管一些损失是拜信息技术和数字化所带来的生产率进步所赐，但也有许多损失的原因是公司将供应链的细分部分转移到了全球经济的其他地方，特别是中国。
Although some of the losses may have resulted from productivity gains from information technology and digitization, many occurred when companies shifted segments of their supply chains to other parts of the global economy, particularly China.