DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/3nhwj2/global_retail_it) has announced the addition of the "Global Retail IT Spending market 2016-2020" report to their offering. The report predicts the global retail IT spending market to grow steadily at a CAGR of close to 4% during the forecast period. Increased need to find customer insights from a large pool of structured and unstructured data is a major driver for investment by retailers on big data