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===How to measure innovation/effect on innovation===
*Patents granted:**Grants - Flow vs. stock*Compustat *Patents sold (re-assignments)**Patents securitized?*Accounting variables:**R&D spending(spotty coverage, Brian's data and COMPUSTAT)**Intangible assets(Brian's data and COMPUSTAT)**Patents sold**Other compound variables
===Factors influencing LBO impact===
*Industry

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