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R&D, concentration and advertising: A simultaneous equations model
Author(s) -
Lunn John
Publication year - 1989
Publication title -
managerial and decision economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.288
H-Index - 51
eISSN - 1099-1468
pISSN - 0143-6570
DOI - 10.1002/mde.4090100203
Subject(s) - simultaneous equations model , economics , mathematical economics , econometrics , mathematics
This study employs a simultaneous equations model to test the relationships among industrial R&D spending, market structure and advertising. The R&D data employed are the Line of Business data collected by the FTC and published at the three‐ and fourdigit SIC level. The results are, in general, complementary to several other recent studies that used data sets involving different degrees of aggregation as well as different measures of research activity.