Does the effect of strategic environments (strategic substitution v.s.
strategic complement) on the experimental outcomes depend on the size of
group? We investigated this question by varying the group size, 2-player vs
8-player, in the two versions of beauty contest games with an interior
equilibrium. We replicate main finding of a previous study that shows significantly larger deviations of chosen numbers from the equilibrium under the strategic complementarity than under the strategic substitution for 8-player games. We found, however, that such
a significant effect of the strategic environment disappears in 2 player
games.