Giannis Karagiannis

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Robin C Sickles1
Pavlos Almanidis1
1Robin C Sickles
1Pavlos Almanidis
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Introduction Most of cross country studies on research productivity differences do not take into account compositional differences in academic staff force, such as sex, years of experience, origin of PhD studies, even though there are well documented evidence that (a) males tend to publish more than females (Gupta et al., 1999); (b) junior academic staff(More)
This paper modifies the Cornwell, Schmidt and Sickles (CSS) (1990) time-varying specification of technical efficiency to allow for switching patterns in temporal changes, which may occur more than once during the sample period. For this purpose, we move from the (second-order) polynomial specification of the standard CSS to a spline function set up while(More)
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