In the 1990s, history scholar Chen Yongfa made a fundamental study of the opium economy two decades before the founding of the CCP and completed a monograph, "Poppies under the Red Sun: The Opium Trade and the Yan'an Model". Since then, more and more research articles have been written on the subject, and new information has appeared. Subsequently, the phenomenon of the opium economy of the CCP's Yan'an regime has also became an important field of study.
Professor Chen Yongfa's book examines the history of the Chinese Communist Party from the perspective of modern Chinese history. It divides it into three stages: revolutionary seizure of power, continuous revolution, and farewell revolution. It delves into three major issues in CCP history: nationalism, grassroots power structure, and ideological transformation and control. published by Taiwan's Linking Publishing in 2001.
