Digitalization and Upstream Supply Chain Source Concentration in High-Tech Industries

Data availabilityThe datasets used in this study come from multiple sources.Product-level dataThe datasets of product-level trade flows used in this study are available from the United Nations Comtrade Database and are publicly accessible. The tariff datasets used in this study are available from the WTO Tariff Database and are publicly accessible. The macroeconomic indicators (such as GDP per capita and trade openness) used in this study are available from the World Bank and are publicly accessible.Firm-level dataThe datasets of firm-level financial information used in this study are available from the CSMAR (China Stock Market & Accounting Research) database, but restrictions apply to the availability of these data, which were used under licence for the current study and so are not publicly available. Data are, however, available from the authors upon reasonable request and with permission of CSMAR.The datasets of firm-level textual and disclosure information used in this study are available from CNINFO, but restrictions apply to the availability of these data, which were used under licence for the current study and so are not publicly available. Data are, however, available from the authors upon reasonable request and with permission of CNINFO.The datasets of additional firm-level indicators used in this study are available from the China Research Data Services Platform (CNRDS), but restrictions apply to the availability of these data, which were used under licence for the current study and so are not publicly available. Data are, however, available from the authors upon reasonable request and with permission of CNRDS.The datasets of supplementary financial and market information used in this study are available from the Wind database, but restrictions apply to the availability of these data, which were used under licence for the current study and so are not publicly available. Data are, however, available from the authors upon reasonable request and with permission of Wind.Code and constructed indicatorsThe compiled firm-level and industry-level indicators and the Stata and Python codes used for variable construction and empirical analysis are available from the corresponding author upon reasonable request.