Questions: The market(s) that channel the excess savings of households into investment spending by firms is(are) known as: - the stock market. - financial markets. - the bond market.

The answer is the second one: financial markets.

Explanation:

• The stock market: This is a specific type of financial market where shares of publicly held companies are issued and traded. While it is a part of the broader financial markets, it is not the only market that channels savings into investments.
• Financial markets: This term encompasses a wide range of markets, including the stock market, bond market, and other markets where financial instruments are traded. Financial markets are the primary channels through which savings are mobilized and allocated to investment spending by firms.
• The bond market: This is another specific type of financial market where debt securities are issued and traded. Like the stock market, it is a part of the broader financial markets but does not encompass all the mechanisms through which savings are channeled into investments.

Summary: The market(s) that channel the excess savings of households into investment spending by firms are known as financial markets.