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Measuring FirmsAAA R&D Effects on Technical Progress: Japan in the 1990s
The authors present a method based on index number theory for estimating technical progress
and then apply it for estimating technical progress for Japanese manufacturing firms in the 1990s. Estimated technical progress is then used to test the above Griliches hypothesis.
Link
http://repec.org/esFEAM04/up.13333.1072776480.pdf