Understanding the Heterogeneous Additionality of R&D Subsidy Programs of Different Government Levels
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2019 ◽
Vol 74
(2)
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pp. 911-937
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2019 ◽
Vol 11
(1)
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pp. 501-522
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2009 ◽
Vol 40
(1)
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pp. 79-94
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2019 ◽
Vol 109
(10)
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pp. 3475-3513
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