Abstract:We analyze the time series of exchange rates and gold price, USD/JPY, EUR/USD, USD/CHF, GBP/USD and XAU/USD, in the period before and after the bankruptcy of Lehman Brothers by using relative noise contribution. Relative noise contribution detects the influences among multiple time series. As a result, we found the exchange rates and gold price are basically driven by their own influence. However, when the affairs happened, they sometimes were driven by other rates or price. In addition, the reaction to the af… Show more
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