Patents and profit rates

被引：9
|
作者：
Kaiser, Ulrich [1 ,2 ,3 ,4 ]
机构：
[1] Univ Zurich, Inst Strategy & Business Econ, CH-8032 Zurich, Switzerland
[2] Copenhagen Sch Econ & Business Adm, Ctr Econ & Business Res, Copenhagen, Denmark
[3] Ctr European Econ Res, Mannheim, Germany
[4] Univ Copenhagen, Ctr Ind Econ, DK-1168 Copenhagen, Denmark
来源：
ECONOMICS LETTERS | 2009年 / 104卷 / 02期
关键词：
Profit rates; Quantile regression; Unobserved heterogeneity; MARKET VALUE; FIRMS;
D O I：
10.1016/j.econlet.2009.04.004
中图分类号：
F [经济];
学科分类号：
02 ;
摘要：
This paper finds that patenting activity has a significantly positive effect on profit rates (profits/sales) for the 50%, 25% and 10% most profitable Danish firms while it has a negative impact on the 10% least profitable firms. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：79 / 80
页数：2
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