I Cockburn

Characteristics of demand for pharmaceutical products: an examination of four cephalosporins.

Z. Griliches, I. Cockburn, J. Hausman, 1997, The Rand journal of economics.

Scale, scope, and spillovers: the determinants of research productivity in drug discovery.

I. Cockburn, R. Henderson, I Cockburn, 1996, The Rand journal of economics.

Mixed Poisson regression models with covariate dependent rates.

M. Puterman, I. Cockburn, P. Wang, 1996, Biometrics.