Cite stock-capital stock ratio
Cite stock-patent sotck ratio
Cite stock-R&D stock ratio
Citation stock for patent apps this year
Cite-yr-dep cite stk
Dummy for zero cite stock
Dummy for zero patent stock
Dummy for zero R&D
Dummy for no self cites to pat apps this year
Dummy for all self cites to pat apps thia year
Future cite stock-patent stock ratio
Future cite stock-R&D stock ratio
Hall-Mairesse industry sector
Numeric ID for firm
~2-digit industry code (ARDSIC)
R&D stock, end of year (M$ curr
R&D stock-capital stock ratio
R&D deflator (1992=1)
Logarithm of Tobin's q
Net Cap Stock (end of yr, M$ cu
Patent apps this yr
Patent stock-capital stock ratio
Past cite stock-patent stock ratio
Past cite stock-R&D stock ratio
Patent stock-R&D stock ratio
Dep. pat stock
Tobin's q (V/A)
R&D expenditure (M$ current)
R&D deflator
Dummy for years after firm stopped doing R&D
Sales (M$ current)
Self cite stock-patent stock ratio
Self cite stock-R&D stock ratio
Undep selfcite share
Dep. selfcite share
Technology class indicator for firm's industry (1-6)
Sum of patent applications in all years
Sum of patent apps in all previous years
4-digit Year