Industrial research and development expenditures : determinants, prospects, and relation to size of firm and inventive output
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Industrial research and development expenditures : determinants, prospects, and relation to size of firm and inventive output
（Cowles Foundation paper / Cowles Foundation for Research in Economics at Yale University, no. 216）
Cowles Foundation for Research in Economics at Yale University, 1964
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注記
"Reprinted from The journal of political economy, Vol. LXXII, No. 4, August, 1964"--p. 319
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