
-------------------------------------------------------------------------------------------
                                    SepalLength            SepalWidth       SepalLength    
                          ------------------------------   ----------   -------------------
                               (1)        (2)        (3)          (4)        (5)        (6)
-------------------------------------------------------------------------------------------
(Intercept)               6.526***                                                         
                           (0.479)                                                         
SepalWidth                  -0.223   0.432***   0.506***                0.729***   0.614***
                           (0.155)    (0.081)    (0.103)                 (0.152)    (0.105)
PetalLength                          0.776***   0.830***      1.048**                      
                                      (0.064)    (0.069)      (0.362)                      
PetalWidth                                       -0.312*                                   
                                                 (0.154)                                   
SepalLength                                                    -0.313                      
                                                              (0.239)                      
-------------------------------------------------------------------------------------------
Species                                   Yes        Yes          Yes                      
isSmall                                              Yes                     Yes        Yes
Species & isWide                                                             Yes           
PetalLength & isWide                                                                    Yes
-------------------------------------------------------------------------------------------
Estimator                      OLS        OLS        OLS           IV        OLS        OLS
-------------------------------------------------------------------------------------------
N                              150        150        150          150        150        150
R2                           0.014      0.863      0.867        0.080      0.731      0.841
Adjusted R2                  0.007      0.860      0.861        0.055      0.716      0.836
Within-R2                               0.642      0.595       -0.535      0.140      0.192
F                            2.074    129.736     69.567       17.468     22.872     34.443
F-test p value               0.152      0.000      0.000        0.000      0.000      0.000
First-stage F statistic                                        19.962                      
First-stage p value                                             0.000                      
Degrees of Freedom             147        145        143          145        141        145
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