Table 4. Average earnings under limited open access and regulation

Treatment Session 1 Session 2 Session 3 All sessions
Limited open access 704 610 673 662
Regulation 910 876 873 886
Limited open access vs. regulation using a Mann-Whitney test (<0.01)*** (<0.01)*** (<0.01)*** (<0.01)***
Number of observations 250 250 250 750
*** denotes p < 0.01; ** denotes p < 0.05; * denotes p < 0.10