Understanding Exchange Rate Changes: Rupee and Dollar Dynamics

An exchange rate tells us how much one currency is worth in terms of another currency. It determines how many units of one currency are needed to buy one unit of another currency.

In this question, we are given an initial exchange rate and a new exchange rate:

• Initial Exchange Rate: $1 = Rs. 72
• New Exchange Rate: $1 = Rs. 68

We need to understand what this change signifies for the value of the Rupee and the Dollar.

Analyzing the Change in Exchange Rate

Let's look at the change from the perspective of both currencies.

Perspective 1: The Rupee

Initially, you needed 72 Rupees to buy 1 US Dollar. Now, you only need 68 Rupees to buy the same 1 US Dollar. This means that the Rupee can now buy more Dollars than before with the same amount of Rupees (or you need fewer Rupees to get the same amount of Dollars).

When a currency's value increases relative to another currency, it is called appreciation. Since fewer Rupees are needed to buy one Dollar, the value of the Rupee has increased. Therefore, the Rupee has appreciated.

Perspective 2: The Dollar

Initially, 1 US Dollar could be exchanged for 72 Rupees. Now, 1 US Dollar can only be exchanged for 68 Rupees. This means that the Dollar buys fewer Rupees than before.

When a currency's value decreases relative to another currency, it is called depreciation. Since one Dollar now fetches fewer Rupees, the value of the Dollar has decreased. Therefore, the Dollar has depreciated.

Evaluating the Given Statements

Let's examine the statements provided in the options:

1. A. Rupee has depreciated
2. B. Dollar has depreciated
3. C. Rupee has appreciated
4. D. Dollar has appreciated

Based on our analysis:

• Statement A (Rupee has depreciated) is incorrect. The Rupee has appreciated.
• Statement B (Dollar has depreciated) is correct.
• Statement C (Rupee has appreciated) is correct.
• Statement D (Dollar has appreciated) is incorrect. The Dollar has depreciated.

The correct statements are B and C.

We can summarize this in a table:

Determining the Correct Option

The question asks to choose the correct answer from the options given below, which are combinations of these statements. We found that statements B and C are correct.

Let's look at the options provided:

1. A and D only
2. B and C only
3. C and D only
4. A and B only

Option 2 lists "B and C only", which matches our finding that the Dollar has depreciated and the Rupee has appreciated.

Conclusion on Exchange Rate Change

When the exchange rate changes from $1 = Rs. 72 to $1 = Rs. 68, it takes fewer Rupees to buy one Dollar. This signifies that the Rupee has become stronger relative to the Dollar, which is Rupee appreciation. Conversely, with one Dollar, you can now get fewer Rupees, which signifies that the Dollar has become weaker relative to the Rupee, which is Dollar depreciation.

Therefore, both the Dollar has depreciated and the Rupee has appreciated.

Revision Table: Exchange Rate Concepts

Additional Information: Fixed vs. Flexible Exchange Rates

Exchange rates can operate under different systems:

• Flexible Exchange Rate System: In this system, the exchange rate is determined by market forces, primarily the demand for and supply of currencies. Appreciation and depreciation occur naturally due to shifts in these market forces. The change from $1 = Rs. 72 to $1 = Rs. 68 could happen in a flexible exchange rate system if, for example, demand for Rupees increases or supply of Rupees decreases relative to the Dollar.
• Fixed Exchange Rate System: In this system, the government or central bank fixes the exchange rate against another currency or a basket of currencies. Changes in the fixed rate are deliberate policy actions. When a fixed rate is lowered (making the domestic currency cheaper), it's called devaluation. When a fixed rate is raised (making the domestic currency more expensive), it's called revaluation. Appreciation and depreciation are market-driven changes in flexible systems, while devaluation and revaluation are policy-driven changes in fixed systems. The scenario described in the question ($1 = Rs. 72 to $1 = Rs. 68) represents appreciation of the Rupee and depreciation of the Dollar, which typically happens in a flexible rate system or after a revaluation policy by the Indian central bank in a fixed system (though the terms appreciation/depreciation are standard for any move).

Understanding whether a currency appreciates or depreciates is crucial for analyzing the impact on trade, capital flows, and inflation.