patentsrd | R Documentation |
Panel data on patents and R&D expenditures. The sample includes 346 firms with five years of data from 1975 to 1979 used by Hall, Griliches, and Hausman (1986).
patentsrd
A data frame with 346 observations and 25 variables:
Compustat's identifying number for the firm (Committee on Uniform Security Identification Procedures number).
A two-digit code for the applied R&D industrial classification.
= 1 if firm is in the scientific sector.
log of the book value of capital in 1972.
sum of patents applied for between 1972-1979.
log of R&D spending in 1970, in 1972 dollars.
log of R&D spending in 1971, in 1972 dollars.
log of R&D spending in 1972, in 1972 dollars.
log of R&D spending in 1973, in 1972 dollars.
log of R&D spending in 1974, in 1972 dollars.
log of R&D spending in 1975, in 1972 dollars.
log of R&D spending in 1976, in 1972 dollars.
log of R&D spending in 1977, in 1972 dollars.
log of R&D spending in 1978, in 1972 dollars.
log of R&D spending in 1979, in 1972 dollars.
number of patents applied in the year that were eventually granted (1970).
number of patents applied in the year that were eventually granted (1971).
number of patents applied in the year that were eventually granted (1972).
number of patents applied in the year that were eventually granted (1973).
number of patents applied in the year that were eventually granted (1974).
number of patents applied in the year that were eventually granted (1975).
number of patents applied in the year that were eventually granted (1976).
number of patents applied in the year that were eventually granted (1977).
number of patents applied in the year that were eventually granted (1978).
number of patents applied in the year that were eventually granted (1979).
23.3 Nonlinear Panel Example: Patents and R&D, pp. 792-5
http://cameron.econ.ucdavis.edu/mmabook/mmadata.html
Cameron, A. and Trivedi, P. (2005), "Microeconometrics: Methods and Applications," Cambridge University Press, New York.
Hall, B., Griliches, Z. and Hausman J. (1986), "Patents and R and D: Is There a Lag?," International Economic Review, 27, issue 2, p. 265-83.
summary(patentsrd)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.