How Did Walmart Get Cleaner Stores and Higher Sales? It Paid Its People More

Can the answer to what ails the global economy be found in the people in blue vests at your neighborhood Walmart?
Read more: http://www.nytimes.com/2016/10/16/upshot/how-did-walmart-get-cleaner-stores-and-higher-sales-it-paid-its-people-more.html?source=Snapzu