The Impact of Access Regulation on Health Insurance Market Structure. Table 12: Estimated Coefficients and Standard Errors: Individual Market

10/20/2000

  NUMINS (1) NUMINS (2) NUMINSa (3) BCBS HMO (1) HMO (2) COMM (1) COMM (2) TOP5 HERF
Constant 6.931*
(2.104)
9.856*
(2.621)
7.437*
(2.098)
0.732*
(0.100)
-0.013
(0.071)
0.253*
(0.078)
0.281*
(0.088)
0.747* 97.933*
(3.674)
0.548*
POP -2.584
(1.221)
-2.264***
(1.218)
-2.548**
(1.226)
0.08
(0.058)
0.039
(0.041)
0.068**
(0.036)
-0.119**
(0.051)
-0.068***
(0.036)
10.283*
(2.134)
0.070
(0.048)
PREEX 0.0073
(0.014)
0.0063
(0.013)
-0.493
(0.763)
-0.00024
(0.001)
0.000084
(0.000)
-0.0000046
(0.0000)
0.00016
(0.001)
0.0000046
(0.000)
-0.020
(0.024)
0.00045
(0.001)
SOMALL 0.738
(1.405)
0.292
(1.408)
0.536
(1.459)
-0.112***
(0.067)
-0.037
(0.048)
-0.078***
(0.042)
0.149*
(0.059)
0.078***
(0.042)
-5.714*
(2.454)
-0.057
(0.055)
ALL -3.625
(2.651)
-2.709
(2.665)
-3.197
(2.523)
0.229***
(0.126)
-0.024
(0.090)
0.060
(0.079)
-0.206***
(0.111)
-0.060
(0.079)
12.082*
(4.630)
0.199***
(0.104)
GRENEW 0.198
(1.052)
-0.406
(1.045)
-0.090
(1.057)
-0.052
(0.050)
0.028
(0.036)
0.0093
(0.031)
0.024
(0.044)
-0.0093
(0.031)
-2.634
(1.838)
-0.13
(0.041)
AGE 1.454
(4.666)
1.998
(4.616)
-0.025
(1.3)
0.136
(0.222)
-0.042
(0.158)
0.0079
(0.137)
-0.094
(0.196)
-0.0079
(0.137)
-6.102
(8.150)
-0.037
(0.182)
HEALTH 0.086
(1.365)
0.530
(1.369)
0.288
(1.172)
0.111***
(0.065)
0.020
(0.046)
0.060
(0.041)
-0.131**
(0.057)
-0.060
(0.041)
2.304
(2.384)
0.106**
(0.053)
RISKDUM 0.071
(1.329)
0.209
(1.314)
0.06
(1.329)
0.034
(0.063)
-0.018
(0.045)
-0.0054
(0.039)
-0.016
(0.056)
0.0054
(0.039)
.766
(2.322)
0.014
(0.052)
BCBS   -3.998***
(2.185)
      -0.364*
(0.065)
  -0.636*
(0.065)
   
1995DUM 0.0095
(0.364)
0.087
(0.362)
-0.00082
(0.359)
0.019
(0.017)
-0.036*
(0.012)
-0.029*
(0.011)
0.017
(0.015)
0.029*
(0.011)
0.298
(0.636)
-0.0069
(0.014)
1996DUM 0.493
(0.323)
0.445
(0.320)
0.481
(0.322)
-0.012
(0.015)
-0.0098
(0.011)
-0.014
(0.010)
0.022
(0.014)
0.014
(0.010)
-0.508
(0.565)
-0.023*
(0.013)
adjusted r2 0.968 0.969 .968 .880 .869 0.902 0.916 .959 .913 .891
F 77.801 78.555 77.789 19.512 17.763 23.897 28.614 59.362 27.374 21.697

*Significant at 0.99.

**Significant at 0.95.

***Significant at 0.90.

a - All independent regulatory variables are entered as dummies.