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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/2738

Title: Productivity spillovers from multinational corporations in the portuguese case: evidence from a short time period panel data
Authors: Proença, Isabel
Fontoura, Maria Paula
Crespo, Nuno
Keywords: domestic firm productivity
multinational corporations
Portugal
technological spillovers
panel data
Extended GMM
Issue Date: 2002
Publisher: ISEG – Departamento de Economia
Citation: Proença, Isabel, Maria Paula Fontoura e Nuno Crespo. 2002. "Productivity spillovers from multinational corporations in the portuguese case: evidence from a short time period panel data". Instituto Superior de Economia e Gestão - DE Working papers nº 6-2002/DE/CEDIN
Series/Report no.: DE Working papers;nº 6-2002/DE/CEDIN
Abstract: Empirical evidence on productivity spillovers - a concept that embodies the fact that foreign enterprises own intangible assets which can be transmitted to domestic firms, thus raising their productivity level - is ambiguous. With a panel data set at the firm level for the Portuguese manufacturing industry, we aim to uncover the possibility that the choice of statistical techniques will have profound effects on evidence of spillovers diffusion. We will consider the panel data models commonly used in the literature and the recent and more robust Extended GMM technique, specially devised for panels with a small number of time periods. We find that positive spillovers occur only when the technologic gap between domestic and foreign firms is moderate. Though all methods agree on this result, there are differences worth to be noted, revealing that the traditional estimates can sometimes be misleading.
URI: http://hdl.handle.net/10400.5/2738
ISSN: 0874-4548
Publisher version: https://aquila1.iseg.utl.pt/aquila/getFile.do?method=getFile&fileId=23830
Appears in Collections:DE - Documentos de trabalho / Working Papers
CEDIN - Documento de trabalho / CEDIN - Working paper

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