a panel of 181 observations from 1983 to 1991
number of observations : 1629
observation : production units
country : world
data(PatentsRD)
A dataframe containing :
year
firm's id
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)
geographic area, one of eu
(European
Union), japan
, usa
, rotw
(rest of the world)
numbers of European patent applications
log of R\&D expenditures
log of spillovers
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.
PatentsHGH
,
Index.Source
,
Index.Economics
,
Index.Econometrics
,
Index.Observations
,
Index.Time.Series