Discuss the concepts of days of inventory and inventory turnover. How are they defined? Why are these concepts important to Supply Chain Management? Find these values for Walmart, Amazon and Dillards. How are these values similar or different for these three companies? Explain the differences. Also, what is cross docking? Explain how Walmart uses cross docking to reduce its inventory. Also, what is the cash-to-cash cycle and how is it related to inventory turnover?

Please help. Thank you :-)