Vassar College Digital Library

Vassar Scholarship

Vassar Scholarship, the institutional repository formerly known as Digital Window, reflects the research and scholarly output of the Vassar College community.  It provides access to a variety of collections, including senior theses and projects across a wide range of disciplines.

Convergence among the U.S. states: Absolute, conditional, or club?

Publication Date
2003-October-01
Document Type
Department or Program
Document Type
Abstract

This paper attempts to ascertain which of the convergence hypotheses – absolute, conditional, or club – best describes the economic development of the U.S. states since 1950. We use regression tree analysis to identify convergence clubs among the states and...

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Patent protection, creative destruction, and generic entry in pharmaceuticals: evidence from patent and pricing data

Publication Date
2005-October-28
Document Type
Authors
Department or Program
Document Type
Abstract

This paper merges patent citation data with data on pharmaceutical patent expirations, generic entry, and pricing to explore the effects of observable patent characteristics on off-patent and on-patnet pharmaceutical pricing. Using a sample of drug patents facing generic entry in...

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