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In addition, an intelligent model is constructed based on the action mechanism of circular economy development and green finance to improve the system structure.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Originality\/value<\/jats:title><jats:p>Finally, this paper designs experiments to verify the performance of the system model. The research results show that the system model constructed in this paper meets the actual situation.<\/jats:p><\/jats:sec>","DOI":"10.1108\/jeim-01-2021-0024","type":"journal-article","created":{"date-parts":[[2021,8,12]],"date-time":"2021-08-12T02:01:15Z","timestamp":1628733675000},"page":"988-1010","source":"Crossref","is-referenced-by-count":28,"title":["Research on the action mechanism of circular economy development and green finance based on entropy method and big data"],"prefix":"10.1108","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5293-9875","authenticated-orcid":false,"given":"Yan","family":"Xiaofei","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"140","published-online":{"date-parts":[[2021,8,11]]},"reference":[{"issue":"3","key":"key2022061704462238500_ref001","doi-asserted-by":"crossref","first-page":"232","DOI":"10.1080\/00208825.2020.1811524","article-title":"Calculation, principle or bias? 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