first stage

Bootstrap its confidence interval:bθ0 ±c αbvn−1/2, where cα is the1 −α/2quantile of the standard Gaussian andbvn−1/2 is the bootstrap standard error ofbθ0 fixing the estimated representations · 2003

1 Pith paper cite this work. Polarity classification is still indexing.

1 Pith paper citing it