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With the aggravation of the global economic crisis and inflation, theprecious metals with safe-haven function have become more popular. An improvedMF-DFA method is proposed to analyze price fluctuations of the precious metalsmarket. Based on the widely used multifractal detrended fluctuation analysismethod (MF-DFA), we compare these two methods and find that the Bi-OSW-MF-DFAmethod possesses better efficiency. This article analyzes the degree ofmultifractality between spot gold market and spot silver market as well astheir risks. From the numerical results and figures, it is found that twoelements constitute the contributions in the formation of multifractality intime series and the risk of the spot silver market is higher than that of thespot gold market. This attempt could lead to a better understanding ofcomplicated precious metals market.

Improving MF-DFA model with applications in precious metals market