The impact of vertical integration (VI) on performance is an often-addressed topic in both management and
economic studies. The contradicting conclusions based on different theoretical perspectives regarding this impact cause
need for empirical studies. Empirical work, however, has lagged behind. In fact, few studies have in a convincing way
demonstrated how VI affects performance. The barriers in conducting empirical studies of VI are multiple. The main
purpose of this paper is to demonstrate ways of overcoming the difficulties facing empirical studies of VI. The empirical
setting chosen for the study is the Norwegian fish processing industry. We examine to what extent VI is implemented in
this industry, mainly upstream, towards the fishing fleet. The economic effect of VI is addressed.
Isaken, J.R. and B. Breyer. The Impact of Vertical Integration on Performance. In: Microbehavior and Macroresults:Proceedings of the Tenth Biennial Conference of the International Institute ofFisheries Economics and Trade, July 10-14, 2000, Corvallis, Oregon, USA.Compiled by Richard S. Johnston and Ann L. Shriver. InternationalInstitute of Fisheries Economics and Trade (IIFET), Corvallis, 2001.