← Search Journal of Finance Vol. 31 No. 1 1976 Optimal Speculation Against an Efficient Market Jeffrey F. Jaffe; Robert L. Winkler DOI10.2307/2326394 Volume31 Issue1 Pages49 Sources semanticscholar openalex crossref 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 ✓