Abstract
The aim of this work is to measure the development of the concentration of quota holdings by harvesting companies and harbours in Iceland. For the period 1990–2014, the analysis traces the development of relative quota holdings of the biggest actors operating large vessels as well as firms that employ smaller boats that are only allowed to use hook-and-line. A more detailed data set is used for the period 2001–2014 which allows for a more thorough investigation of consolidation in both fleet segments using Herfindahl-Hirchman Indexes, Gini coefficients and Lorenz-curves. The biggest firms in the two fleet segments increased their share of quotas throughout the period but the quota market is though still quite competitive. The distribution of quotas between firms has become more unequal, and there is also clear evidence of increasing transfers between harbours, especially in the case of the quota shares of hook-and-line boats. However, the results also indicate that spatial concentration has been much less than consolidation at firm level during the period under consideration. This would indicate that firms have mostly grown in size by merging with local firms or buying out smaller local operators.
Author(s): S. Agnarsson , T. Matthiasson , F. Giry