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Firm size and the returns to R&D investment in high-technology industries
Doyle, Teresa M., (1994)
Do cross-border acquisitions of US targets differ from US domestic takeover targets?
Chen, Chao, (1997)
Estimating the effects of R&D on Bell System productivity : a model of embodied technical change
Gordon, Roger H., (1986)
Revisiting Corporate R&D Spending During a Recession
Dugal, Sanjiv S., (1995)