In Walmart’s first social responsibility report, released this week, the company outlined its commitment to sustainable growth and reported a few key figures, including employee compensations. Wages for Walmart’s average employee are growing, according to the report. The retail giant is also investing in training and education programs. Hyunseob Kim studies corporate finance and labor economics at Cornell University’s Johnson Graduate School of Management, where he focuses on the effects of corporate governance and investment on wages and productivity. Kim says that Walmart is responding to an increasingly tight labor market.