RT Journal T1 How the iPhone Widens the U.S. Trade Deficit with China: The Case of the iPhone X A1 Yuqing Xing PB Front. Econ. China FD 2020-12-15 YR 2020 JF Frontiers of Economics in China JO Front. Econ. China VO 15 IS 4 SP 642 DO 10.3868/s060-011-020-0026-8 K1 China;US;value added;global value chains (GVCs);iPhone;Chinese yuan (CNY) LK {https://academic.hep.com.cn/fec/EN/article/article_28852.shtml}