← Search American Economic Review Vol. 86 No. 2 1996 HMO Penetration and the Cost of Health Care: Market Discipline or Market Segmentation? Laurence C. Baker; Kenneth S. Corts Volume86 Issue2 Pages389-394 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 ✓