Answer to Question #136193 in Macroeconomics for Nontobeko

Question #136193
Explain, with an aid of a graph the effect of this on the rand /dollar exchange rate and the equilibrium of dollars
1
Expert's answer
2020-10-05T16:28:37-0400
"Solution"


Let's assume an open Economy like SA, the scenario below can be used to explain the dollar exchange rate and the equilibrium of dollars.


Figure-1 in the document attached below illustrates the impact of an increase in the criminal activities in South Africa and the ensuing reduction in the influx of tourists into the country on its foreign exchange market. The "y" and the "x" axes in figure-1 represent the price of Rand in terms of US Dollars or P(R) and the quantity of rand or Q(R) respectively.

The D(R)1 and the S(R)1 denote the initial demand curve and supply curve of Rand in the foreign exchange market of Rand. The initial equilibrium exchange rate and the quantity of Rand in the market are indicated or denoted as P(R)1 and Q(R)1 respectively corresponding to the intersection of D(R)1 and S(R)1 curves.

Now, as criminal activities increase in South Africa, the foreign tourists would be apprehensive about travelling to South Africa leading to a reduction in the overall tourist activities in the country. This would expectedly reduce the demand for Rand among the foreign residents or tourists thereby leading to a decrease in the overall demand for Rand in the foreign exchange market.

As a result, the market demand for Rand would decrease as indicated in figure-1 by a leftward or downward shift of the market demand curve for Rand from its initial position D(R)1 to D(R)2 leading to new equilibrium exchange rate and quantity of Rand which are denoted as P(R)2 and Q(R)2 respectively corresponding to the intersection of D(R)2 and S(R)1 curves in figure-1. Note that as the demand for Rand decreases in the market the exchange rate value of Rand in terms of US Dollars depreciates or declines from the initial value of P(R)1 to P(R)2 and the equilibrium quantity of Rand also decreases from Q(R)1 to Q(R)2.


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