← Search Econometrica Vol. 5 No. 1 1937 Income in Theory and Income Taxation in Practice Irving Fisher DOI10.2307/1905400 Volume5 Issue1 Pages1 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 ✓