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Pollution control innovations and the Clean Air Act of 1990
Popp, David, (2001)
International innovation and diffusion of air pollution control technologies : the effects of nox and SO2 regulation in the US, Japan, and Germany
Popp, David, (2004)
Intellectual Property Rights and Green Technology Transfer : German and U.S. Perspectives
Percival, Robert V., (2014)
Trends and volatilities in foreign patents registered in the USA
Chan, Felix, (2004)
An econometric analysis of asymmetric volatility : theory and application to patents
McAleer, Michael, (2007)
The geometry of specification error
Fisher, Gordon R., (1984)