← Search Research Policy 2009 Categorical coherence, classification volatility and examiner-added citations David Tan1; Peter W. Roberts2 1 Georgetown University · 2 Emory University DOI10.1016/j.respol.2009.11.001 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 ✓