ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
abstract
Based on the wavelet decomposition approach, we study co-movement among foreign exchange markets using the returns of exchange rates (GBP/USD, EUR/USD, and JPY/USD). We focus on the interdependence among returns of exchange rates during the recent global financial crisis and European debt crisis. We use a wavelet analysis because of its ability to decompose signals into high and low frequencies. This approach allows us to study shorter time periods independently of longer time periods. The results reveal strong interdependence between the euro and pound sterling at all frequency bands of scale over the sample period. With regard to the yen– pound pairwise, covariation is localized at high scales. Further, we find that interdependence is more pronounced during crises.
5. Conclusion
Distinguishing between interdependence and contagion is a key issue from the perspective of portfolio diversification, especially during periods of high volatility. By making a distinction, investors can derive important information that enables them to develop rational asset allocation strategies and select optimal portfolios. Similarly, policymakers can create reliable crisis management policies in order to avoid risk.