Successful retailers tend to grow quickly in their early years simply by opening new stores. But over time as they run out of real estate they need the discipline to stop opening stores and drive more sales through existing stores. For that they need to make changes in the way they run their existing stores, take help from analytics and use technology. Several such small changes brought in profits that helped 17 retailers outperform the stock performance of the S&P 500 index, according to a study titled “Curing the Addiction to Growth” published in the Harvard Business Review by Marshall