“…(Maskus and Penubarti, 1995, Rafiquzzaman, 2002, Smith, 1999, 2001). In the early 2000s, studies began to focus on developing countries' trade flows and the role of IPR rights (Park and Lippoldt, 2005, Awokuse and Yin, 2010, Yang and Maskus, 2009, Branstetter et al, 2005. With respect to China, Awokuse and Yin (2010) Some studies analyze the role of innovation and government policies in explaining the rapid development of the renewable energy sector in China.…”