estimator,beta,se,gamma,n,r2
Cheng OLS (pooled),0.8119241820644745,0.029259867729858405,-0.18807581793552552,522769,0.7053864314995516
Cheng FE (cell),0.6558022813415533,0.029440415405950358,-0.3441977186584467,522769,0.7956390786292254
Clapp IV (rank instrument),0.9165755831160218,0.02111681371535637,-0.08342441688397817,522769,0.4855697563551059