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With the calculation of correlation statistics and fluctuation function, the beginning procedures of MF\u2010DCCA, we find that the cross\u2010correlation between USEPU and GDCP is significant and presents power law property. Also, with the Hurst exponent, we find that the long\u2010horizon correlations between series are persistent. Moreover, we perform R\u00e9nyi exponent and spectrum singularity check. The empirical findings reveal that the all the correlations are of multifractality and the correlation of GDCP holds the highest degree.<\/jats:p>","DOI":"10.1155\/2021\/8091394","type":"journal-article","created":{"date-parts":[[2021,7,5]],"date-time":"2021-07-05T20:35:08Z","timestamp":1625517308000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Economic Policy Uncertainty and Local Carbon Emission Trading: A Multifractal Analysis from US and 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