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by nuisance-bear 1907 days ago
Whoa, the press release does not match the results. Scroll down to Tables 2a,2b on pp. 26-27 of the NBER paper.

These are their 1 year horizon alpha's and tstats against Fama French 3 factor:

          alpha     tstat
   Long   6.5%      6.6
   Shrt   5.0%      3.7
Those numbers are economically and statistically significant.