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Urban Start-up Agglomeration and Venture Capital Investment (view source)
Revision as of 12:56, 10 September 2019
, 12:56, 10 September 2019→Maximum R-squared
quietly capture reg growthinv17lf pc1 pc2 pc3 if placeid==`placeid' & numclusters==`clusters' & lowesthighestflag==1 & year>=1995 & year <.
There are two issues. Why are we using a pca? Just to get the number of regressors down? And more importantly, one or more PCA components may be picking up a scale effect. We don't want to use the scale regressors in R2 estimation, because they might drive the R2. '''So we should, for each regression or beforehand, create residuals from estimating the scale effect and then use then them as our dependent variable.'''
=====Revisiting Portland=====
