Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Magnus Kellermann"'
Autor:
Giannis Karagiannis, Magnus Kellermann
Publikováno v:
Journal of Productivity Analysis. 51:175-187
In this paper we provide several new specifications within the true random effects model as well as stochastic frontiers models estimated with GLS and MLE that enrich modeling choices when distinguishing between heterogeneity and efficiency. The main
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab66af3f2b71f0327a41b4e60d175f39
https://doi.org/10.1007/s11123-019-00551-y
https://doi.org/10.1007/s11123-019-00551-y
Publikováno v:
Agribusiness. 34:61-76
In this paper, we provide a method to separate the product differentiation markup from other sources of market power, i.e., collusive behavior or lack of market transparency, based on the estimation of a single reduced form equation. We apply this me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cc6fe5e95ed0bfc18d52bcda58714fa
https://doi.org/10.1002/agr.21528
https://doi.org/10.1002/agr.21528
Autor:
Klaus Salhofer, Magnus Kellermann
Publikováno v:
Journal of Dairy Science. 97:6196-6210
Based on an extensive data set for southern Germany, we compared the productive performance of dairy farms that operate solely on permanent grassland and dairy farms using fodder crops from arable land. We allowed for heterogeneous production technol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52bfcc5fd172753fb3a85a2b28e345ad
https://doi.org/10.3168/jds.2013-7825
https://doi.org/10.3168/jds.2013-7825