PatentsRD

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 : production units

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 vehicles)

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&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/. Verbeek, Marno (2004) A Guide to Modern Econometrics, John Wiley and Sons, chapter 7.

See Also

PatentsHGH, Index.Source, Index.Economics, Index.Econometrics, Index.Observations, Index.Time.Series