Are There International R and D Spillovers Among Randomly Matched Trade Partners? : A Response to Keller /

Keller (1998) reexamines Coe and Helpman's (1995) analysis of international R and D spillovers focusing on the weights used to define the foreign R and D capital stock. Keller creates 'random' weights and shows that they give rise to positive estimates of international R and D spillov...

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Автор: Coe, David
Інші автори: Hoffmaister, Willy
Формат: Журнал
Мова:English
Опубліковано: Washington, D.C. : International Monetary Fund, 1999.
Серія:IMF Working Papers; Working Paper ; No. 1999/018
Онлайн доступ:Full text available on IMF
Опис
Резюме:Keller (1998) reexamines Coe and Helpman's (1995) analysis of international R and D spillovers focusing on the weights used to define the foreign R and D capital stock. Keller creates 'random' weights and shows that they give rise to positive estimates of international R and D spillovers, casting doubts on the robustness of Coe and Helpman's findings. We show that Keller's 'random' weights are essentially simple averages with a random error. We derive alternative random weights and present regressions showing that when they are used to define the foreign R and D capital stock, the estimated international R and D spillover estimates are nonexistent, as would be expected.
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Фізичний опис:1 online resource (21 pages)
Формат:Mode of access: Internet
ISSN:1018-5941
Доступ:Electronic access restricted to authorized BRAC University faculty, staff and students