← Search American Economic Review Vol. 75 No. 3 1985 Network Externalities, Competition, and Compatibility Michael L. Katz; Carl Shapiro Volume75 Issue3 Pages424-440 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 ✓