← Search Econometrica Vol. 37 No. 2 1969 A Nonlinear, Maximum Likelihood Estimate of the Liquidity Trap Howard W. Pifer DOI10.2307/1913540 Volume37 Issue2 Pages324 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 ✓