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Erscheinungsjahr: 
2012
Schriftenreihe/Nr.: 
Discussion Papers No. 713
Verlag: 
Statistics Norway, Research Department, Oslo
Zusammenfassung: 
The major claim in Acemoglu, Aghion, Bursztyn & Hemous (2012) (AABH) is that subsidies for research and development of clean technologies are more important than carbon taxes when dealing with climate change. However, they - unconventionally - assume that a patent only lasts for one period. In this note we introduce long-lived patents into the AABH model. This makes the role of a research subsidy for clean technologies in AABH far less crucial and reestablishes the role of the carbon tax. This is good news as it is far easier to tax emissions than to pick the right technologies to subsidize.
Schlagwörter: 
Environment
directed technological change
innovation policy
JEL: 
O30
O31
O33
Dokumentart: 
Working Paper

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