PatentsRD {micEcdat} | R Documentation |
Patents, R&d and Technological Spillovers for a Panel of Firms
Description
a panel of 181 observations from 1983 to 1991
number of observations : 1629
observation : firms
country : world
Usage
data(PatentsRD)
Format
A dataframe containing :
- year
- year
- fi
- firm's id
- sector
- firm's main industry sector, one of aero (aerospace), chem (chemistry), comput (computer), drugs, elec (electricity), food, fuel (fuel and mining), glass, instr (instruments), machin (machinery), metals, other, paper, soft (software), motor (motor vehicules)
- geo
- geographic area, one of eu (European Union), japan, usa, rotw (rest of the world)
- patent
- numbers of European patent applications
- rdexp
- log of R and D expenditures
- spil
- log of spillovers
Source
Cincer, Michele (1997) “Patents, R & D and technological spillovers at the firm level : some evidence from econometric count models for panel data”, Journal of Applied Econometrics, 12(3), may–june, 265–280.
References
Journal of Applied Econometrics data archive : http://jae.wiley.com/jae/.
See Also
Index.References
, Index.Economics
, Index.Econometrics
[Package
micEcdat version 0.1-1
Index]