Minimum detectable effect size for main outcomes (accounting for sample
design and clustering)
Assume that when the reservation wage is below the offered wage, the girl joins the labor force, and the offered wage distribution is the same as the current wage distribution, i.e., according to the pilot survey, the mean is BDT 5,250, and the standard deviation is BDT 2,693. Further assume that reservation wage distribution is equal to the current wage distribution minus one standard deviation. To maintain the 90% statistical power, the minimum sample size is 1,304.