TABLE 2: Descriptive Statistics, 1997 levels
                           
  Full set of companies, 1997   Paired differences, 1997^
    (mean of SO minus non-SO paired values)
  All surveyed Surveyed  
  All non-SO cos. Stock option cos. stock option cos. SO cos. w > 50% All paired cos. Paired cos w > 50%
    (1)   (2)   (3)   (4)   (5)   (6)  
   
   
Sample size 7165 490 105 73   490 73
   
   
Sales (000,000's) 1151.26 (5716.137) 3562.746 (8929.085)*** 2769.606 (10474.95)*** 2731.662 (11960.170)** 784.19 (4674.435)*** 879.592 (4675.732)
Employees (000's) 5.654 (27.916) 14.451 (33.497)*** 11.888 (37.701)** 10.053 (38.186) -0.364 (16.068) -1.641 (13.345)
Capital Intensity 264.338 (2800.588) 110.557 (304.687) 161.843 (448.753) 156.061 (436.980) -12.717 (699.928) -189.801 (1717.53)
(total assets/ee)(000's)  
   
Ln (Sales)   4.532 (2.427) 6.23 (2.196)*** 5.359 (2.390)*** 4.959 (2.521) 0.361 (0.902)*** 0.074 (1.104)
Ln (Employees) -0.598 (2.253) 0.868 (2.012)*** 0.171 (2.120)*** -0.261 (2.117) 0.001 (0.187) -0.012 (0.622)
Ln (Capital Intensity) 3.625 (1.577) 3.769 (1.612)* 3.811 (1.306) 3.912 (1.256) 0.122 (1.252)** 0.025 -1.435
   
Industry    
  Agriculture 0.35 % 0.48 % 1.12 % 0.25 % 0.26 % 0.28 %
  Mining/construction 5.56 % 0.97 % 2.33 % 0.79 % 1.04 % 0.84 %
  Manufacturing 47.87 % 57.39 % 60.24 % 57.9 % 58.66 % 58.94 %
  Communications 9.81 % 8.47 % 8.01 % 8.42 % 7.23 % 7.54 %
  Wholesale 4.94 % 2.9 % 0.56 % 3.16 % 3.1 % 3.35 %
  Retail   8.52 % 4.6 % 6.98 % 3.68 % 4.91 % 3.91 %
  Finance, real estate 4.84 % 1.69 % 7.63 % 1.32 % 1.3 % 0.82 %
  Service   18.12 % 23.49 % 13.13 % 24.47 % 23.51 % 24.3 %
                           
Notes:  Standard deviations in parentheses.
* Significantly different from all non-SO companies (cols. 2-4) or from zero (cols. 5-6) at p<.10  **p<.05  ***p<.01
^ The actual number of companies is close to three times larger than the number of paired differences.  The non-SO company's value was subtracted from the SO company's
   value to create a single paired difference value.  Where there was more than one paired company, the values were averaged before being subtracted from the SO value.