COMPETITIVE SUPPLY CHAIN AND REVENUE MANAGEMENT: FOUR ESSAYS When the peer group measure is interacted with the choice index in Column B, and again with additional controls in the remaining columns the coefficient is indistinguishable from zero, with a negative point estimate in every specification. Panel B repeats this analysis, this time with the score earned by students when they were in the 12th Again, estimates of the choice effect are imprecise but are with one statistically insignificant exception of the opposite sign from that predicted by the economic model
