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. Author manuscript; available in PMC: 2018 Jan 22.
Published in final edited form as: J Econ Behav Organ. 2014 Nov 25;109:120–134. doi: 10.1016/j.jebo.2014.11.009

Table 4.

Average contributions by treatment and type

Without Punishment
 With Punishment
l-player h-player total l-player h-player total
Base 9.5 - 9.5 16.5 - 16.5
(4.6) - (4.6) (3.7) - (3.7)
Val 6.4 15.9 9.6 10.3 18.0 12.8
(5.2) (4.3) (4.1) (6.9) (5.4) (5.5)
Cap 12.6 16.2 13.8 18.4 19.8 18.9
(6.0) (4.2) (5.0) (3.0) (0.4) (2.0)

Note: Average contributions depending on treatment and subjects’ type using data from period 1-10 (without punishment) and 11-20 (with punishment). Numbers in parentheses display standard deviations using group averages as the unit of observation.