7.1. Cost-efficient vessels and intra-marginal rentTo compare fishing effort and costs among vessels, the relative standardised effort is calculated for each vessel. The relative fishing power differed among the vessels. Vessels equipped with high engine power, a large number of crew members and a large number of fishing days have the greater relative standardised effort. The results showed that a large number of vessels with high relative standardised effort (more than one) were the most efficient vessels, both from a fishing efficiency and from a cost efficiency point of view. As a result, intra-marginal rent is mostly generated by these vessels. From these results, the purse seine fishery may continue expanding, as well as attract fishing investors to this fishery in the near future. Either investments in engine capacity and fishing gear or an additional increase in fishing time may continue this growth. This seems to reflect somewhat the situation of Khanh Hoa’s fisheries since the total engine power of the fishing fleet continued to increase in 2011.Overall, intra-marginal rent is generated from the existence of heterogeneous vessels, of which the most cost efficient vessels make above-normal profits, called intra-marginal rent (Coglan and Pascoe, 1999; Flaaten, 2011). This could imply that even in an open-access fishery, some vessels may improve their economic performance by the introduction of cost saving practices. It is important to note that even under an open-access regime many vessels may create benefits for society.
đang được dịch, vui lòng đợi..
