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39 results:
… firm performance using a difference-in-difference approach…
… has found no statistical difference between secondary…
… was used to divide the difference in average pay between…
… higher at £3,684, but the difference between online and…
… controlling for other differences, students who studied…
… place of death differs between ethnic groups in England…
… component: This is the difference between the actual…
… household consumption. A difference-in-differences…
… work often makes a big difference to ethnicity wage gaps,…
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