Money markets serve five functions—to finance trade, finance industry, invest profitably, enhance commercial banks' self-sufficiency, and lubricate
central bank policies.
Financing trade The money market plays a crucial role in financing domestic and
international trade. Commercial finance is made available to the traders through
bills of exchange, which are discounted by the bill market. The
acceptance houses and discount markets help in financing foreign trade.
Financing industry The money market contributes to the growth of industries in two ways: • They help industries secure short-term loans to meet their
working capital requirements through the system of finance bills, commercial papers, etc. • Industries generally need long-term loans, which are provided in the
capital market. However, the capital market depends upon the nature of and the conditions in the money market. The short-term interest rates of the money market influence the long-term interest rates of the capital market. Thus, money market indirectly helps the industries through its link with and influence on long-term capital market.
Profitable investments The money market enables commercial banks to use their excess reserves in profitable investments. The main objective of commercial banks is to earn income from its reserves as well as maintain liquidity to meet the uncertain cash demand of its depositors. In the money market, the excess reserves of commercial banks are invested in
near money assets (e.g., short-term bills of exchange), which are easily converted into cash. Thus, commercial banks earn profits without sacrificing liquidity.
Self-sufficiency of commercial banks Developed money markets help commercial banks to become self-sufficient. In an emergency, when commercial banks have scarcity of funds, they need not approach the central bank and borrow at a higher interest rate. They can instead meet their requirements by from the money market.
Help to Central Bank Though the
central bank can function and influence the banking system in the absence of a money market, the existence of a developed money market significantly enhances monetary policy transmission and central bank efficiency. Money markets help central banks in three primary ways: Interest Rate Signaling: Short-term interest rates in money markets serve as immediate indicators of monetary and banking conditions, guiding central bank policy decisions. As Chen & Valcarcel (2021) demonstrate, money market rates respond quickly to policy changes, providing real-time feedback on policy effectiveness. Bech & Klee (2011) further show how segmentation in money markets can affect this transmission mechanism. Policy Implementation: Well-integrated money markets enable central banks to achieve widespread influence across financial sub-markets efficiently. When the central bank adjusts its policy rate, these changes transmit rapidly through interbank markets to other financial instruments and ultimately to the broader economy. Carpenter & Demiralp (2012) highlight how this transmission has evolved beyond traditional money multiplier frameworks. Liquidity Management: Money markets facilitate efficient distribution of liquidity among financial institutions, reducing the need for direct central bank intervention. This market-based approach to liquidity allocation improves the overall efficiency of monetary policy operations. However, as Brunnermeier & Koby (2018) note, there are limits to the effectiveness of monetary policy through these channels, particularly in low-interest-rate environments. == Instruments ==