An indicator linked to Walmart, one of the US's most iconic economic stalwarts, is flashing a possible recession warning , according to a Wall Street veteran. Jim Paulsen — a longtime economist and the former chief investment strategist of the Leuthold Group — maintains the Walmart Recession Signal (WRS), which measures Walmart's stock price against a basket of luxury stocks. The general idea is that the higher the gauge goes, the more risk there is of a sharp economic downturn. As the chart