Before revision:  As a result, we can use a recent randomized algorithm to solve the problem, which offers an approximation factor of 1/e . Finally, we illustrate our theoretical findings by performing experiments on synthetic and real lending data .
After revision:  As a result, we can use a recent randomized algorithm to solve the problem, which offers an approximation factor of 1/e . Finally, we illustrate our theoretical findings by performing experiments on synthetic and real lending and credit card data illustrate our theoretical findings and show that the counterfactual explanations and decision policies found by our algorithms achieve higher utility than several competitive baselines .