کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
984545 934328 2014 11 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
The lag structure of the relationship between patenting and internal R&D revisited
ترجمه فارسی عنوان
ساختار تاخیر رابطه بین اختراعات و تحقیق و توسعه داخلی بازبینی شده
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کلمات کلیدی
اختراعات؛ تحقیق و توسعه داخلی . تاخیر ساختار؛ مدل تأخیر توزیعی افزاینده ؛ مدل خطی پویا ؛ صنعت داروسازی
موضوعات مرتبط
علوم انسانی و اجتماعی مدیریت، کسب و کار و حسابداری کسب و کار و مدیریت بین المللی
چکیده انگلیسی


• Our results illustrate a cumulative, path-dependent innovation process of incumbent pharmaceutical firms.
• In that context, current patent production is historically dependent on past internal R&D investments.
• In addition to emphasizing current internal R&D, firms should adopt a long-term perspective for their R&D investment strategies.
• Through periodically reviewing and recombining old, useful but under-utilized knowledge, firms can enhance their R&D investment returns.

The principal purpose of this study is to revisit the classic research question regarding the lag structure of the patents–R&D relationship through an examination of the impact of internal R&D on firm patenting in the context of the global pharmaceutical industry during 1986–2000. Our empirical analysis, using both a multiplicative distributed lag model and a dynamic linear feedback model, differs from previous work that examines the patents–R&D relationship in three aspects. First, our estimation results exhibit direct evidence on lagged R&D effects, with the first lag (t − 1) of R&D being significant in all distributed lag specifications. Second, a U-shaped lag structure of the patents–R&D relationship is found in most estimations of the multiplicative distributed lag model, which suggests a potential long-run effect of internal R&D investments on firm patenting. Finally, the results from the dynamic linear feedback model coincide with those from the multiplicative distributed lag model, indicating not only lag effects from more recent R&D but also an overall long-run effect of internal R&D investments in the distant past on the knowledge production or innovation process of incumbent pharmaceutical firms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Research Policy - Volume 43, Issue 8, October 2014, Pages 1275–1285
نویسندگان
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