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The Dynamics of the Transfer and Renewal of Patents
Serrano, Carlos J. - University of Toronto, Department of Economics - 2006
This paper explores a new dataset of transfers of patents recorded at the United States Patent and Trademark Office …. The aim of the paper is twofold. First, a number of patterns are presented. For instance, the probability of a patent …. Second, the paper extends Pakes and Schankerman\\'s patent renewal framework in order to develop a model of the transfer and …
Persistent link: https://www.econbiz.de/10005827263
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Industrial Energy from Water-Mills in the European Economy, Fifth to Eighteenth Centuries: the Limitations of Power
Munro, John - University of Toronto, Department of Economics - 2001
The water-mill, though known in the Roman Empire from the second century BCE, did not come to enjoy any widespread use until the 4 th or 5 th centuries CE, and then chiefly in the West, which was then experiencing not only a rapid decline in the supply of slaves, but also widespread...
Persistent link: https://www.econbiz.de/10005704737