Shan Weijian, the chairman and chief executive of the investment giant PAG, has a reputation as one of Asia’s savviest investors. While at Newbridge Capital, later called TPG, he bought stakes in Shenzhen Development Bank and Korea First Bank. At Hong Kong-based PAG, he acquired a piece of Tencent Music and began searching for health care and consumer plays. A trained economist, Shan studied with Janet Yellen at Berkeley, taught at the Wharton School at the University of Pennsylvania and in 1989 founded the academic journal,“China Economic Review.” He recently wrote a memoir, Out of the Gobi: My Story of China and America, about growing up during the Cultural Revolution, and then living in the U.S. What follows is a lightly edited Q. and A. Shan Weijian Illustration by Lauren Crow Q: Covid-19 has devastated the global economy, starting in China but now reaching just about everywhere. What’s your outlook on growth for the remainder of this year, and are there long term co