← Search American Economic Review Vol. 69 No. 1 1979 The Relative Efficiency of Slave Agriculture: A Comment Donald F. Schaefer; Mark D. Schmitz Volume69 Issue1 Pages208-212 Sources bibtex:phds-export.bib 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 ✓