Understanding Money Supply Contraction

Money supply refers to the total amount of money circulating in an economy at a given time. Contraction of money supply means reducing the amount of money available in the economy. This is usually done by the central bank as a tool of monetary policy, often to control inflation.

Let's analyze each action described in the question to see how it affects the money supply:

Analyzing Government Actions on Money Supply

We will examine each numbered action and determine its impact on the total money circulating among the public and commercial banks.

1. Purchase of Treasury Bills by the central bank from public: When the central bank buys Treasury Bills (government securities) from the public or commercial banks, it pays money in return. This money goes into the hands of the public or adds to the reserves of commercial banks, increasing their capacity to lend. This action injects money into the economy, leading to an expansion of the money supply.
2. Sale of Treasury Bills by the central bank to public: When the central bank sells Treasury Bills to the public or commercial banks, the buyers pay money to the central bank. This money is effectively withdrawn from circulation in the economy. This action removes money from the economy, leading to a contraction of the money supply. This is a common open market operation used to tighten liquidity.
3. Sale of foreign exchange by the central bank: When the central bank sells foreign currency in the market, it receives domestic currency in exchange from those buying the foreign currency (like commercial banks or businesses). This inflow of domestic currency to the central bank takes that money out of circulation in the domestic economy. This action removes domestic currency from the economy, leading to a contraction of the money supply (assuming the domestic currency received is not immediately reinjected).
4. Purchase of foreign exchange by the central bank: When the central bank buys foreign currency, it pays for it with domestic currency. This domestic currency is then released into the economy, either to the public or commercial banks who sold the foreign currency. This action injects domestic currency into the economy, leading to an expansion of the money supply.

Based on this analysis, actions 2 and 3 typically lead to a contraction of the money supply, while actions 1 and 4 lead to an expansion.

The question asks which of the given actions would lead to contraction and provides options combining these actions. We need to select the option that correctly identifies the action(s) causing contraction.

Let's look at the options in light of our analysis:

• Option 1: 1 and 4 only (Both cause expansion) - Incorrect.
• Option 2: 1 and 3 only (1 causes expansion, 3 causes contraction) - Incorrect combination.
• Option 3: 2 and 3 only (Both cause contraction) - This option combines two actions that typically cause contraction.
• Option 4: 2 only (2 causes contraction) - This option identifies one action that causes contraction.

Considering the structure of the options and the typical effects of these central bank actions, action 2 (Sale of Treasury Bills) definitely causes contraction by withdrawing money from the public/banks.

Therefore, action 2 is an action that leads to the contraction of money supply.

Revision Table: Impact of Central Bank Actions on Money Supply

Additional Information on Monetary Policy Tools

Central banks use various tools to manage the money supply and influence economic activity. The actions discussed above are key examples:

• Open Market Operations (OMO): This involves the buying and selling of government securities (like Treasury Bills) by the central bank in the open market. Buying securities adds money to the banking system (expansion), while selling securities removes money (contraction). This is a primary tool for controlling liquidity. Action 1 and Action 2 in the question are examples of OMO.
• Foreign Exchange Operations: Central banks can intervene in the foreign exchange market by buying or selling foreign currencies. Selling foreign currency and receiving domestic currency can reduce domestic money supply (contraction). Buying foreign currency and paying with domestic currency can increase domestic money supply (expansion). Action 3 and Action 4 are examples of such operations.
• Reserve Requirements: The central bank can mandate the percentage of deposits that commercial banks must hold in reserve. Increasing the reserve requirement reduces the money available for lending (contraction), while decreasing it increases lending capacity (expansion).
• Policy Interest Rates: The central bank can influence interest rates in the economy by setting a target rate (like the repo rate or discount rate) at which banks borrow from it or from each other. Raising this rate makes borrowing more expensive, reducing lending and economic activity (contraction). Lowering the rate makes borrowing cheaper (expansion).

All these tools are part of the central bank's monetary policy framework aimed at achieving goals like price stability, full employment, and economic growth.