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→Introduction of Compustat and Preparation for Stata
*Create table compupatentlboyearsummary with variables standard compustat names, gvkeys, years, number of patents per year, and lbo entries/exits in each year
*Create table statastaging with all variables from compupatentlboyearsummary in addition to all the pulled compustat variables *Create table sicnaicsconversion with sic codes and naics codes as a conversion table for adding naics that correspond to the sic codes in blank rows *Create table statastagingnew with two extra columns, concordsic and concordnaics, then export to Statastata
===Stata Work===
