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Compared with scientific publications and patents, policy documents show some distinct characteristics, such as citation relationships with different legal validity, which could be considered to improve the policy citation analysis. To this end, this study formally constructs a policy citation network based on a plethora of citing\/cited links embedded in the textual content of policy documents and proposes a preference-adjusted main path analysis (PMPA) approach to track historical routes of policy diffusion. PMPA incorporates two kinds of policy citation preferences, including validity bias and time bias. An evidence analysis from China\u2019s new energy policies (NEPs) is implemented to show the efficacy of the proposed approach. The results unveil that the preference-adjusted main path approach can capture more important policies and more informative main paths of policy diffusion than the original MPA. Moreover, our research can yield in-depth insight into the evolutionary process of policy diffusion and provide guidance for policy-makers and industry decision-makers to formulate practical policy-making.<\/jats:p>","DOI":"10.1177\/01655515231189660","type":"journal-article","created":{"date-parts":[[2023,8,9]],"date-time":"2023-08-09T07:14:39Z","timestamp":1691565279000},"page":"451-470","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Tracing policy diffusion: Identifying main paths in policy citation networks"],"prefix":"10.1177","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5626-5604","authenticated-orcid":false,"given":"Zhichao","family":"Ba","sequence":"first","affiliation":[{"name":"Research Institute for Data Management Innovation, Nanjing University, China; School of Digital Economy and Management, Nanjing University, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yao","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Agricultural Economics and Rural Development, Renmin University of China, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuetai","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Information Management, Wuhan University, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yikun","family":"Xia","sequence":"additional","affiliation":[{"name":"Research Institute for Data Management Innovation, Nanjing University, China; School of Digital Economy and Management, Nanjing University, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,8,9]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-6210.2012.02610.x"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11192-018-2899-z"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.techfore.2022.122273"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12961-018-0326-9"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.techfore.2013.07.011"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.techfore.2020.120386"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.techfore.2020.120116"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1177\/0165551519871826"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joi.2020.101010"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joi.2021.101143"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1177\/01655515221101835."},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11192-014-1406-4"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/asi.20903"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.techfore.2018.07.040"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/0378-8733(89)90017-8"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.techfore.2019.04.013"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joi.2014.10.002"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11192-019-03105-z"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joi.2021.101136"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11192-018-2834-3"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1002\/asi.21692"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11192-013-1140-3"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1080\/01442870902863851"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-5907.2008.00346.x"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclepro.2022.134270"},{"key":"e_1_3_3_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joi.2020.101105"},{"key":"e_1_3_3_28_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1467-8306.1971.tb00806.x"},{"key":"e_1_3_3_29_2","doi-asserted-by":"publisher","DOI":"10.1080\/23812346.2017.1342381"},{"key":"e_1_3_3_30_2","volume-title":"Power and society: a framework for political inquiry","author":"Lasswell H","year":"2014","unstructured":"Lasswell H, Kaplan A, Brunner RD. 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