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Then, the effects of five environment variables (including the per capita GDP, the business volume of telecommunications service, the number of graduates, the local financial expenditure on science and technology, and the Internet penetration rate, as the explanatory variables) on the operating efficiency of the innovation ecosystem of college students\u2019 start-ups were studied by using efficiency values excluding environment variables and random factors as the explained variables, and five environment variables as the explanatory variables.<\/jats:p>","DOI":"10.3233\/jcm-226550","type":"journal-article","created":{"date-parts":[[2022,11,11]],"date-time":"2022-11-11T11:38:43Z","timestamp":1668166723000},"page":"485-498","source":"Crossref","is-referenced-by-count":0,"title":["Operating efficiency of the innovation ecosystem of college students\u2019 start-ups based on three-stage DEA 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