The dollar store industry has historically done well when the consumer was under pressure. And so, in the decade that followed the Great Recession, Dollar General and Dollar Tree outperformed the S&P 500. But the current economic environment is playing out differently as both companies face competition in e-commerce and have been burdened with a number of operational challenges. Watch the video to find out why the share price of both stocks have plunged more than 50% in the past couple of years.