← Search Research Policy 2005 Opportunity knocks Thomas B. Åstebro; Kristina Dahlin Joseph L. Rotman School of Management DOI10.1016/j.respol.2005.06.003 Sources semanticscholar openalex Cite APA 7 MLA 9 Chicago (author–date) Harvard Elsevier Harvard (JFE, JBF…) The Accounting Review Academy of Management American Marketing Association INFORMS (Management Science) Copy citation Copied ✓