کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
975444 | 1480166 | 2014 | 9 صفحه PDF | دانلود رایگان |
• An absolute measure is proposed for a key currency using the 24 h periodicity.
• The proposed measure is more quantitative than the existing measure.
• US dollar increased its strength against euro and yen after the Lehman shock.
It is generally considered that the US dollar and the euro are the key currencies in the world and in Europe, respectively. However, there is no absolute general measure for a key currency. Here, we investigate the 24-hour periodicity of foreign exchange markets using a recurrence plot, and define an absolute measure for a key currency based on the strength of the periodicity. Moreover, we analyze the time evolution of this measure. The results show that the credibility of the US dollar has not decreased significantly since the Lehman shock, when the Lehman Brothers bankrupted and influenced the economic markets, and has increased even relatively better than that of the euro and that of the Japanese yen.
Journal: Physica A: Statistical Mechanics and its Applications - Volume 407, 1 August 2014, Pages 15–23