从“经济学家”沦为“骗子专家”，郎咸平是如何一步步走下神坛？

Core Viewpoint - The article discusses the controversial life of Lang Xianping, highlighting his rise as a prominent academic and subsequent fall from grace due to involvement in financial scandals and personal misconduct [1]. Group 1: Academic Background - Lang Xianping was born in Taiwan in 1956 and studied economics at Donghai University before pursuing further education at National Taiwan University [3]. - He earned a PhD from the Wharton School and had a successful academic career, teaching at prestigious institutions and serving as a governance consultant for the World Bank [5]. Group 2: Rise to Fame - Lang gained significant recognition for accurately predicting the financial troubles of the DeLong Group, which elevated his academic reputation [7]. - His public criticism of Gu Chujun's misappropriation of state assets in a 2004 speech at Fudan University further solidified his status as a leading economist [7]. Group 3: Fall from Grace - Lang's reputation began to decline due to his involvement in various financial scandals, including the Kunming Pan-Asia Nonferrous Metals Exchange fraud in 2011 and the fake box office scandal of "Ip Man 3" in 2015 [11]. - He faced public backlash for defending individuals involved in scandals, such as Guo Meimei's controversy with the Red Cross, and for his personal life choices, including multiple marriages and extramarital affairs [9][11]. Group 4: Lessons Learned - Lang Xianping's story serves as a cautionary tale about the consequences of greed and the importance of maintaining integrity in both personal and professional life [13].