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