The Producer Price Index (PPI) is the official measure of producer prices within the U.S. economy. It measures the average change in selling prices for goods received by manufactures. The Producer ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who ...

Indexes represent baskets of financial assets, gauging overall market performance. Index funds allow passive investment at low costs, popular for matching market returns. Understanding indexes helps ...