This document discusses working capital management. It defines working capital as the difference between current assets and current liabilities, and can be positive or negative. It outlines key components of working capital like inventories, receivables, payables. The document also discusses factors that influence working capital needs like nature of business, credit policies. It then explains how to calculate the operating cycle and applies it to sample data. Finally, it discusses various sources to finance working capital needs, including bank financing tools like overdrafts and letters of credit, as well as trade credit, public deposits, commercial papers and more.