← Search Journal of Finance Vol. 32 No. 4 1977 Canadian Evidence of Heteroscedasticity in the Market Model Ahmed Belkaoui DOI10.2307/2326532 Volume32 Issue4 Pages1320 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 ✓