PatentsRD: Patents, R&d and Technological Spillovers for a Panel of...
In pglm: Panel Generalized Linear Models
Description
Usage
Format
Source
References
Description
annual observations of 181 firms from 1983 to 1991
number of observations : 1629
country : world
economic topic : producer behavior
econometrics topic : count data
Usage
1
Format
A dataframe containing :
- firm
firm's id
- year
year
- 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://qed.econ.queensu.ca/jae/.
pglm documentation built on July 20, 2021, 1:06 a.m.
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Description Usage Format Source References
Description
annual observations of 181 firms from 1983 to 1991
number of observations : 1629
country : world
economic topic : producer behavior
econometrics topic : count data
Usage
1 |
Format
A dataframe containing :
- firm
firm's id
- year
year
- 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://qed.econ.queensu.ca/jae/.
R Package Documentation
Browse R Packages
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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