@incollection{,
	
					
					
					EC9EDF1EBF21677A8C4A9FAE3B5CBA3A
				,
	author={{AhmedBellakhdhar} and {University of Tunis, Tunisia}},
	journal={{Global Journal of Management and Business Research}},
	journal={{GJMBR}}2249-45880975-585310.34257/GJMBR,
	address={Cambridge, United States},
	publisher={Global Journals Organisation}192116
}

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	title={{Too little or too much R&D?}}
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	title={{New evidence on international R&D spillovers, human capital and productivity in the OECD}}
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		,
	title={{On endogenous growth with physical capital, human capital and product variety}}
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}