Retail analytics : integrated forecasting and inventory management for perishable products in retailing This book addresses the challenging task of demand forecasting and inventory management in retailing. It analyzes how information from point of sale scanner systems can be used to improve inventory decisions and develops a data driven approach that integrates demand forecasting and inventory management for perishable products while taking unobservable lost sales and substitution into account in out of stock situations. Using linear programming a new inventory function that reflects the causal relationship between demand and external factors such as price and weather is proposed. The book subsequently demonstrates the benefits of this new approach in numerical studies that utilize real data collected at a large European retail chain. Furthermore the book derives an optimal inventory policy for a multi product setting in which the decision maker faces an aggregated service level target and analyzes whether the decision maker is subject to behavioral biases based on real data for bakery products.