This document discusses working capital management. It defines working capital as the capital required to finance short-term assets like cash, inventory, and receivables. It presents two concepts of working capital - the balance sheet concept, which is the excess of current assets over current liabilities, and the operating cycle concept, which involves the cash flows from purchasing inventory to collecting from sales. The document outlines factors that influence working capital needs and the risks of excess versus inadequate working capital. It also provides examples of estimating working capital requirements for trading and manufacturing businesses.