We argue that the measures of backward linkages used in recent papers on spillovers from multinational companies are potentially problematic, as they depend on a number of restrictive assumptions, namely that (i) multinationals use domestically produced inputs in the same proportion as imported inputs, (ii) multinationals have the same input sourcing behaviour as domestic firms, irrespective of their country of origin, and (iii) the demand for locally produced inputs by multinationals is proportional to their share of locally produced output. We discuss why these assumptions are likely to be violated in practice, and provide alternative measures that overcome these drawbacks. Our results, using plant level data for Ireland, show clearly that the choice of backward linkage measure and thus, the assumptions behind them, matters greatly in order to draw possible conclusions regarding the existence of FDI-related spillovers. Using the standard measure employed in the literature we fail to find robust evidence for spillovers through backward linkages. However, when we use alternative measures of backward linkages that relax assumptions (i)-(iii), we find robust evidence for positive FDI backward spillover effects
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Paper provided by Kiel Institute for the World Economy in its series Kiel Working Papers with number
1560.
Find related papers by JEL classification: F23 - International Economics - - International Factor Movements and International Business - - - Multinational Firms; International Business L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure
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