Media type: E-Article Title: A Note on Necessity Entrepreneurship and Competitive Strategy Contributor: Block, Joern Hendrich; Kohn, Karsten; Miller, Danny; Ullrich, Katrin imprint: Elsevier BV, 2013 Published in: SSRN Electronic Journal (2013) Language: English DOI: 10.2139/ssrn.2288745 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: