"When Americans by buying securities such as stocks and bonds or putting money in a bank, they provide funds for firms wishing to engage in by buying assets used to produce goods and services. Households with extra money left over after buying things they want or need purchase securities or put their funds in savings accounts, and banks help transfer those funds to firms. By matching and working with these borrowers and lenders, banks act as ."

The correct answer is: save investment intermediary.

Explanation:

Investment intermediaries act as a middleman between individual investors or entities with investment firms. These intermediaries could be commercial banks, mutual and pension funds, credit unions or pension funds. One of the advantages of working through save investment intermediaries is that they could obtain securities at lower prices since when they do so they purchase them at lower rates at larger quantities.

turnover

the amount of money taken by a business in a particular period.