Abstract:With the vigorous development of digital economy，The importance of bet365 free bets to China’s economic growth is increasingly apparent。Data collected、Cleaning、Storage、Processing and other aspects，Continuously accumulate value to form bet365 free bets。Based on the perspective of data value chain，Estimating bet365 free bets formation and bet365 free bets stock at the value level using cost method and value-added method，Use the storage scale method to estimate the data size at the physical level，Use provincial panel model to estimate its contribution to economic growth based on bet365 free bets estimation results，can be found between: 20032020，my country’s bet365 free bets formation、bet365 free bets stock has achieved substantial growth both in total and per capita，The growth rate is significantly faster than the GDP growth rate;After 2011，The output elasticity of bet365 free bets and its contribution to economic growth are significantly higher than in the previous stage，has become one of the important driving forces of China’s economic growth。

　　Keywords:bet365 free bets, data value chain, value-added method, economic growth

　　AuthorLiu Taoxiong，Professor, School of Social Sciences, Tsinghua University (Beijing 100084);Rong Ke，Professor, School of Social Sciences, Tsinghua University (Beijing 100084);Zhang Yadi，Assistant Professor, School of Economics and Management, Beijing Jiaotong University (Beijing 100044)。