← Search American Economic Review Vol. 78 No. 5 1988 Cooperative and Noncooperative R & D in Duopoly with Spillovers Claude d'Aspremont; Alexis Jacquemin Volume78 Issue5 Pages1133-1137 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 ✓