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The matching scriptsFirst run matches 162 (163 but no match 66). Although the 179 are going in, LBOmatchingscriptsome are missing indu3 (because they are missing n2) and some are missing logitpreg.jl and LBOmatching . count if hadlbo==1 & regfilter==1 179 .jl, were rewritten by Ed to run with Julia count if hadlbo==1 & regfilter==1& logitpreg <. 171 .count if hadlbo==1 & regfilter==1& logitpreg <. & indu3 <. 163 .count if hadlbo==1& regfilter==1 & logitpreg <. & n2 <. 163 The solution was to create an additional sic to naics lookup and then union it with the official one. Because of the courseness of the newly included SIC and so NAICS codes, this will only work when using 2 digit NAICS codes.
The Effect of Leverage Buyouts on Innovation (view source)
Revision as of 14:46, 25 July 2019
, 14:46, 25 July 2019→Code
With the increased sample, we now find that LBOs are associated with reduced likelihood of patenting overall. However, this results is driven by the LBOs in period 1 from 1980 to 1995. In period 2, from 1995 to 2015, there is no statistically significant association. We also tried using decades but this wasn't instructive.
The matching scripts, LBOmatchingscript.jl and LBOmatching.jl, were rewritten by Ed to run with Julia 1.1.1. They use the LBOregmarker and regfilter -- we are matching at t-1 (or t-2). Note that we only export if regfilter==1 to MatchInput2V1.txt. All 179 patenting LBOs are in there...
=Ed's version from 2018=
