1 For the following questions, select the key term that best matches with the definition provided. - Manipulation of the money supply and the interest rate to achieve specific economic goals - Markets in which commodities are bought and sold; one loop in a circular flow diagram measuring the value flow of final goods and services in an economy - The linkage of successive stages in producing or marketing a product in a single decision entity - The linkage of firms in different stages of production or marketing under the ownership of a single firm A. Vertical integration B. Vertical coordination C. Monetary policy D. Product market