Estimating Targeting Ability in Multi-Species Fisheries: A Primal Multi-Output Distance Function Approach
估计了两个北海船队段的多产出距离函数，通过产出替代弹性考察通过目标捕捞活动改变渔获组成的能力，发现该能力因船队段和船舶特征而异，大型船舶更能影响渔获组成。
<i>In this paper, we estimate a multi-output distance function for two North Sea fleet segments and derive output elasticities of substitution to examine the potential for changing catch composition though targeting fishing activity. We find that this ability differs between fleet segments, and also within fleet segments due to differences in vessel characteristics, with larger vessels appearing to be more able to influence their catch composition than smaller vessels. We argue that failure to quantify and integrate these technical interactions in the construction of management instruments for fisheries regulation may result in increased discarding and/or illegal fishing.</i>