Fig. 2 indicates that punishment and expectations thereof increased in proportion to the amount by which dictators' transfers fell short of 50%. The average punishment imposed when A gave nothing was 14 deduction points, that is, reducing A's income by 42 points, and sanctioning declined monotonically to near zero as transfers reached half of the endowment.

DEFINE: Clarifies how punishment was measured in deduction points and income reduction, making the experimental scale concrete.

Ernst Fehr, Third-Party Punishment and …, loc. 30