As foreign exchange activity grows, a given degree of central bank intervention becomes less effective. Hence, the correct option is (b) less effective.
Central banks manage currency by generating new currency, setting foreign currency reserves, and fixing interest rates. In regard to foreign exchange, the central bank intervention aims at stabilizing its currency in the foreign exchange market. The success of central bank interventions highly depends on how it manages and stabilizes its currency in the foreign exchange market.
If the central bank fails to maintain its stability in the foreign exchange market, it undermines the credibility of the central bank. The increase in foreign exchange activities means that the role of central bank intervention is less effective to stabilize its currency in the foreign exchange market.
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<span>This reflects upward mobility and globalization. It also reflects a tendency by Wesley and his father to follow in their fathers' footsteps and choose a similar (in this case agricultural) career path. It reflects upward mobility because farming your own land is more prestigious and profitable that being a sharecropper, comparing Wesley's father to his grandfather's situation; and owning and international dairy company is more prestigious and profitable than owning one farm. Wesley's role in the world market also represents globalization, as this global market was likely not open to his father or grandfather.</span>
