See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/222658809 Impact factors ARTICLE in JOURNAL OF ECONOMETRICS · SEPTEMBER 2005 Impact Factor: 1.6 · DOI: 10.1016/j.jeconom.2004.08.007 · Source: RePEc CITATIONS 5 READS 47 2 AUTHORS, INCLUDING: Paruolo Paolo European Commission 70 PUBLICATIONS 530 CITATIONS SEE PROFILE Available from: Paruolo Paolo Retrieved on: 04 February 2016