Commerce announced a new targeted dumping methodology on March 4, 2013. The targeted dumping methodology is used when the level of dumping is concealed by offsetting sales among certain regions, time periods, or customers. For example, high priced (non-dumped) sales to one customer could be offsetting the low priced (dumped) sales to another customer. The new test, called the “differential pricing analysis,” requires a finding of a pricing pattern that differs significantly among purchasers, regions, or time periods before calculating dumping margins on a transaction specific-basis. The new approach includes two tests: the “Cohen’s d test,” which statistically measures the pricing differences among the sale groups, and the “ratio test,” which measures the value of the sales passing the “Cohen’s d test.” Depending upon the results, Commerce will apply the average-to-transaction methodology to all, some, or none of the reported sales. Commerce also identified a meaningful increase in the dumping margin that must be met prior to using the average-to-transaction methodology. Specifically, the overall relative change must be 25 percent or move the margin above the de minimis threshold.