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Table 1 The results of choices under the two contract types

From: Profit distribution and managers’ behaviour in vertical integrated medical delivery systems – an experimental economics study

  Subgroup Rigid contract Flexible contract Total  
Median Quartile Median Quartile Median Quartile P
The bidding distribution rate (%) Undergraduates 15.00 4.75 13.50 5.50 14.25 14.25  
Postgraduates 18.25 12.00 20.50 14.00 20.00 20.00  
Professionals 25.00 16.25 24.00 5.50 24.50 24.50  
Total 17.00 12.00 20.00 13.00 18.50 18.50 < 0.001
Observations (%) 161(33.61) 318 (66.39) 479 (100.00)
The final rate (%) Undergraduates 16.00 6.00
Postgraduates 25.00 14.00
Professionals 28.00 6.50
Total 23.00 14.00 < 0.001
The improvement rate (%) Undergraduates 2.00 3.25
Postgraduates 4.00 6.00
Professionals 3.50 6.50
Total 3.00 4.63 0.01
The effort level Undergraduates 10.00 2.00 10.00 1.00 10.00 1.00  
Postgraduates 8.00 4.00 8.00 3.00 8.00 3.00  
Professionals 8.00 4.00 9.00 3.00 8.00 4.00  
Total 8.00 4.00 9.00 3.00 9.00 3.00 < 0.001