Key points are not available for this paper at this time.
M. Ishaq Nadiri, Theofanis P. Mamuneas, The Effects of Public Infrastructure and R & D Capital on the Cost Structure and Performance of U.S. Manufacturing Industries, The Review of Economics and Statistics, Vol. 76, No. 1 (Feb., 1994), pp. 22-37
Nadiri et al. (Tue,) studied this question.