U.S. R&D 1975-1998: A New Dataset

This novel dataset covers 2805 companies with 8525 facilities, including location, reporting line within the organization, numbers of professional staff and technicians, and R&D fields over the years 1975-98. The dataset includes a match to the Compustat identifier, gvkey. Also included here are the original source files under license from the copyright owner.本新型数据集涵盖2805家企业，共计8525处经营设施，收录了1975年至1998年间的企业所在地、组织内部汇报层级、专业人员与技术人员数量，以及研发领域等相关信息。本数据集包含与Compustat标识符（gvkey）的匹配项，同时收录经版权方授权的原始源文件。