Q.What is exchange rate? How is it measured?

Let's break down each statement to understand the underlying economic concepts.

Understanding Statement 1: The price of a given currency in terms of another is known as bank rate.

The "price of a given currency in terms of another" refers to how much one currency is worth when exchanged for another. This fundamental concept in international economics is known as the exchange rate. For instance, if one US dollar can be exchanged for ₹83, then ₹83 is the exchange rate for one US dollar in Indian rupees. It tells us how many units of the domestic currency are needed to buy one unit of a foreign currency, or vice versa.

On the other hand, the bank rate is a monetary policy tool used by the central bank of a country (like the Reserve Bank of India). It is the interest rate at which the central bank lends money to commercial banks without demanding any collateral. It influences the overall interest rate structure in the economy and is distinct from the exchange rate.

Since the statement incorrectly equates the exchange rate with the bank rate, Statement 1 is false.

Understanding Statement 2: Demand curve for foreign exchange is a downward sloping curve.

The demand for foreign exchange arises from various international transactions. For example, when residents of a country want to:

• Import goods and services from abroad.
• Travel to foreign countries (tourism).
• Invest in foreign assets (e.g., buying foreign stocks or bonds).
• Send remittances to relatives living abroad.

All these activities require converting domestic currency into foreign currency, thus creating a demand for foreign exchange.

Now, let's consider the relationship between the exchange rate and the quantity demanded of foreign exchange. Suppose the exchange rate is expressed as the price of foreign currency in terms of domestic currency (e.g., rupees per US dollar).

• If the exchange rate falls (i.e., foreign currency becomes cheaper in terms of domestic currency), then:
  • Imports become cheaper for domestic consumers, leading to an increase in import demand.
  • Foreign travel becomes cheaper, encouraging more tourism abroad. …

The question asks about the impact of a rising home currency exchange rate on the value of exports. To understand this, we first need to clarify what "exchange rate of the home currency rises" means and then trace its effects on international trade.

In economics, when the "exchange rate of the home currency rises," it means the home currency has appreciated. This implies that one unit of the home currency can now buy more units of foreign currency, or, conversely, one unit of foreign currency buys fewer units of the home currency. This change in relative value directly impacts the prices of goods traded internationally.

Let's break down the process:

1. Understanding "Exchange Rate of the Home Currency Rises"

   • An exchange rate expresses the value of one currency in terms of another. For example, if the exchange rate is $1 \text{ USD} = 80 \text{ INR}$, it means 1 US Dollar can be exchanged for 80 Indian Rupees.
   • When the "exchange rate of the home currency rises," it means the home currency appreciates. This implies that the home currency becomes stronger relative to foreign currencies.
   • Consider India as the home country. If the exchange rate of the Indian Rupee (INR) rises, it means the INR can now buy more foreign currency. For instance, if the rate changes from $1 \text{ USD} = 80 \text{ INR}$ to $1 \text{ USD} = 75 \text{ INR}$, this signifies an appreciation of the INR. Why? Because now you need fewer Rupees to buy one Dollar, meaning each Rupee is worth more Dollars than before ($1 \text{ INR} = 1/80 \text{ USD}$ initially, now $1 \text{ INR} = 1/75 \text{ USD}$).

2. Impact on the Price of Exports for Foreign Buyers

   • Exports are goods and services produced domestically and sold to foreign countries. These goods are typically priced in the home currency by the domestic producers.
   • When the home currency appreciates, foreign buyers need to spend more of their own currency to acquire the same amount of the home currency.
   • Let's use our example: An Indian exporter sells a product for $8,000 \text{ INR}$.
     • Initially, at $1 \text{ USD} = 80 \text{ INR}$, a US buyer would pay $8,000 \text{ INR} / 80 \text{ INR/USD} = 100 \text{ USD}$.
     • After the INR appreciates to $1 \text{ USD} = 75 \text{ INR}$, the same product still costs $8,000 \text{ INR}$ to the Indian producer. However, the US buyer now has to pay $8,000 \text{ INR} / 75 \text{ INR/USD} \approx 106.67 \text{ USD}$.
   • This shows that the price of Indian exports, when converted into foreign currency, has increased for foreign buyers. …

The foreign exchange rate is fundamentally a price — but instead of pricing apples or steel, it prices money itself. When you travel abroad or when countries trade goods and services, they need a way to convert one currency into another. The exchange rate is the mechanism that makes this conversion possible.

Think of it this way: if you're an Indian importer buying machinery from the United States, the American seller wants payment in dollars, not rupees. You need to know how many rupees you must surrender to acquire each dollar. That ratio — rupees per dollar — is the exchange rate. It bridges two monetary systems and allows international transactions to happen.

More formally, the foreign exchange rate is the rate at which one country's currency can be exchanged for another country's currency. It can be quoted in two equivalent ways:

• Direct quotation (price quotation): the domestic currency price of one unit of foreign currency. For instance, ₹83 per US dollar means you pay ₹83 to get 1 US dollar.
• Indirect quotation (volume quotation): the foreign currency price of one unit of domestic currency. For example, 0.012 US dollars per rupee means one rupee buys you 0.012 US dollars.

Both convey the same information; they are reciprocals of each other. …