超額外匯儲(chǔ)備和匯率超調(diào):中國(guó)的證據(jù)
[Abstract]:The data show that many developing countries have accumulated huge foreign exchange reserves during their short-term development, showing a strong preference for foreign exchange reserves and foreign bonds. At the same time, there is a significant positive correlation between the standard deviation of exchange rate changes and the standard deviation of foreign exchange reserve movements in the same period. On the basis of ObstfeldRogoff (1995) model, this paper considers the influence of resident's preference for foreign bonds on exchange rate overshoot. The results of the model analysis show that the preference for foreign bonds will cause the exchange rate to fluctuate sharply. This is because the expected devaluation of the local currency as the currency expands will allow residents to hold more foreign bonds in the hope of making a profit when they appreciate. Holding foreign bonds means less demand for money. In order for the money market to be balanced, nominal interest rates must be further lowered, leading to a greater depreciation of the expected exchange rate, resulting in exchange rate overshoot. It is found that the proportion of China's foreign exchange reserves deviating from its proper size has increased from about one time in 1991 to about five times in 2008, and the phenomenon of exchange rate imbalance is obvious during this period. VAR results show that the current average reserve deviation of nearly 30 percent will mean that the real exchange rate level deviates from the equilibrium value by about 4 percent.
【作者單位】: 武漢大學(xué)經(jīng)濟(jì)與管理學(xué)院;
【分類(lèi)號(hào)】:F832.6;F224
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