TABLE 7:  Stock Options Plans and Pre-post Annual Growth in Performance
                                   
Dependent variables: Ln(output/employee)       Total Shareholder           Tobin's Q       Return on Assets  
               Return      
Sample: Full Paired   Full Paired   Full Paired   Full Paired  
  Independent variables (1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)  
All companies w/data in both periods^        
Stock option co.        
1     1985-87 0.022 ** 0.017 ** 4.132 * 3.59   0.075 ** -0.483 *** 0.583 * -0.087  
  (3.18) (2.12)   (1.67) (1.14)   (3.52) (5.38)   (1.82) (0.18)  
2     1995-97 0.01 0.022 *** -0.208 4.97   0.173 ** -1.672 *** 0.799 ** 0.52  
  (1.46) (2.70)   (0.08) (1.58)   (8.14) (18.66)   (2.49) (1.07)  
Paired co.        
3     1985-87 0.004   0.435   0.014   -0.034  
  (0.77)   (0.21)   (0.75)   (0.13)  
4     1995-97 0.001   -3.348   0.072 **   0.419  
  (0.25)   (1.57)   (4.01)   (1.60)  
Change from 1985-87 to 1995-97        
5     Stock option co. -0.012   -4.34   0.098 **   0.216  
  (1.24)   (1.28)   (3.38)   (0.49)  
6     Paired co. -0.003   -3.783   0.058 **   0.453  
  (0.37)   (1.31)   (2.39)   (1.26)  
7     Difference -0.009 0.005   -0.557 1.38   0.04 -1.189 *** -0.237 0.60  
  (0.77) (0.41)   (0.14) (0.31)   (1.11) (9.34)   (0.44) (0.88)  
         
Total observations 11478 696   9666 570   9648 588   11532 696  
Number of stock option companies represented 152 116   144 95   144 98   152 116  
  Number of paired companies represented 1761   116   1467   95   1464   98   1770   116  
Within-company change following adoption        
   of non-management stock option plans^^        
8      Pre-adoption 0.029 *** 0.029   2.413 1.276   0.028 -0.937   0.381 -0.953  
  (2.71) (2.06)   (0.49) (0.23)   (0.52) (6.55) *** (0.66) (1.26)  
9      Post-adoption -0.023 * -0.014   -3.456 -5.808   0.174 -2.288   0.638 -1.612  
  (1.88) (0.78)   (0.54) (0.74)   (1.29) (5.84) *** (0.50) (0.77)  
10      Difference -0.052 *** -0.043 ** -5.870 -7.084   0.148 -1.350 *** 0.257 -0.659  
  (3.25) (1.97)   (0.74) (0.77)   (1.24) (4.00)   (0.21) (0.34)  
         
Total observations 210 174   192 145   187 147   209 171  
Number of stock option companies represented 15 13   15 12   15 12   15 13  
  Number of control companies represented     13       12       12       13  
* p<.10   ** p<.05   *** p<.01
^ Based on robust regressions run on all companies with complete data for the 1985-87 and 1995-97 periods.  Controls include ln(employment)
   and ln(assets interacted with each period, plus year dummies and 2-digit industry dummies.
^^ Based on residuals from robust regressions of performance variables on ln(employment), ln(net assets), and 2-digit industry variables
    run separately for each year.  Reported results are based on stock option companies with at least two pre-adoption observations
    and two post-adoption observations.  Observations were weighted using robust regression weights and number of observations per
    company so that the weighted number of pre-adoption observations equals the weighted number of post-adoption
    observations for each company, to provide a balanced pre/post comparison.
Stata files stock4.do stock4b.do stock4.do stock4b.do stock4.do stock4b.do stock4.do stock4b.do
stock3bb.do stock3bp.do stock3cc.do stock3cp.do stock3dd.do stock3dp.do stock3ee.do stock3ep.do
Within-company change following adoption      
   of non-management stock option plans^^      
8      Pre-adoption 0.012   9.471   -0.813 *** -0.202
  (0.96)   (1.55)   (5.58)   (0.23)
9      Post-adoption 0.005   -8.574   -1.984 *** -0.866
  (0.25)   (1.15)   (5.91)   (0.51)
10      Difference -0.007   -18.045 * -1.171 *** -0.665
  (0.34)   (1.86)   (3.87)   (0.38)
       
Number of stock option companies represented 18   17   17   19
  Number of control companies represented     18               17               17               19