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Table 22 Per-firm entry thresholds from an ordinary ordered probit

From: Market structure and competition in the healthcare industry

  Pharmacies Physicians Dentists
  1995 2001 2010 1995 2001 2010 1995 2001 2010
Threshold population per firm
\(s_1\) 2448 3189 2761 1694 1443 1301 2092 1752 1966
\(s_2\) 3383 4676 3029 1342 1046 1036 2542 2051 1949
\(s_3\) 4853 5555 3125 1492 1086 1031 2752 2127 1864
\(s_4\) 4230 6351 3206 1555 1119 1002 2700 2085 1846
\(s_5\) 5564 6650 3108 1469 1134 1016 2527 2131 1779
\(s_6\) 5728 8211 3116 1527 1100 980 2522 2103 1941
\(s_7\)   8274 3323 1645 1061 968 2615 2170 2029
Per-firm entry threshold ratios (\(s_7/s_N\))
\(s_7/s_1\) 2.34 2.59 1.20 0.97 0.74 0.74 1.25 1.24 1.03
\(s_7/s_2\) 1.69 1.77 1.10 1.23 1.01 0.93 1.03 1.06 1.04
\(s_7/s_3\) 1.18 1.49 1.06 1.10 0.98 0.94 0.95 1.02 1.09
\(s_7/s_4\) 1.35 1.30 1.04 1.06 0.95 0.97 0.97 1.04 1.10
\(s_7/s_5\) 1.03 1.24 1.07 1.12 0.94 0.95 1.03 1.02 1.14
\(s_7/s_6\)   1.01 1.07 1.08 0.96 0.99 1.04 1.03 1.05