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		| Joachim  Wagner | 
	
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		| ''Exports, R&D and productivity: a test of the Bustos-model with German enterprise data'' | 
	
		| ( 2012, Vol. 32 No.3 ) | 
	
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		| This paper presents the first empirical test with German firm level data of a hypothesis derived by Bustos (AER 2011) in a model that explains the decision of heterogeneous firms to export and to engage in R&D. Using a non-parametric test for first order stochastic dominance it is shown that, in line with this hypothesis, the productivity distribution of firms with exports and R&D dominates that of exporters without R&D, which in turn dominates that of firms that neither export nor engage in R&D. These results are in line with findings for Argentina. The model, therefore, seems to be useful to guide empirical work on the relation between exports, R&D and productivity. | 
	
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		| Keywords: Exports,  R&D,  productivity,  Germany | 
	
		| JEL: F1 - Trade: General L6 - Industry Studies: Manufacturing: General
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		| | Manuscript Received : Jun 26 2012 |  | Manuscript Accepted : Jul 16 2012 | 
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