← Search Econometrica Vol. 37 No. 3 1969 The Identification Problem in Econometrics Herman O. Wold; Franklin M. Fisher DOI10.2307/1912803 Volume37 Issue3 Pages547 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 ✓