@article {Lothgren:1999:0003-6846:1231, title = "Testing scale efficiency in DEA models: a bootstrapping approach", journal = "Applied Economics", parent_itemid = "infobike://routledg/raef", publishercode ="routledg", year = "1999", volume = "31", number = "10", publication date ="1999-10-01T00:00:00", pages = "1231-1237", itemtype = "ARTICLE", issn = "0003-6846", eissn = "1466-4283", url = "https://www.ingentaconnect.com/content/routledg/raef/1999/00000031/00000010/art00008", doi = "doi:10.1080/000368499323445", author = "Lothgren, Mickael and Tambour, Magnus", abstract = "This paper presents a method for estimation and test of firm-specific scale efficiency using data envelopment analysis (DEA). The use of a simple bootstrap algorithm is proposed to perform firm-specific inference for scale efficiency. An empirical application using Swedish hospital data is provided. It is found that about 40% of the departments were scale efficient according to the original results. However, for about one-third of those departments the hypothesis of scale efficiency could be rejected.", }