I have created various databases that are available for free to academic researchers. For full information regarding the data and the conditions for access, please visit the website of the Center on Law, Business, and Economics at Northwestern University.

In addition, Julia Schmidt and I are sharing the standards count time series used in our joint paper “Technological Standardization, Endogenous Productivity and Transitory Dynamics”:

• Standard_series_33_35_US.
• Read_me
• Code_package
• R_files
• Output_data