Using Conditional Lorenz Curves to Examine Consolidation in New Zealand Commercial Fishing

KOBI ABAYOMI

doi:10.5950/0738-1360-27.4.303

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KOBI ABAYOMI^1,*

¹Binghamton University

^*Kobi Abayomi is an assistant professor, Binghamton University, Environmental Studies Program and Department of Mathematics and Statistics, Department of Mathematical Sciences, Binghamton University, Binghamton, NY 13902–6000 USA (email: kobi@math.binghamton.edu).

Abstract

We use individual transferable quota (ITQ) consolidation in New Zealand's commercial fishing to illustrate three different methods of measuring consolidation: the Herfindahl Hirschman Index (HHI), conditional Gini Coefficients, and conditional Lorenz curves. The Lorenz curve allows for conditional specification over stratified groupings, which yields straightforward interpretation and illustration of overall inequality for more nuanced interpretations.

JEL Classification Codes: Q22, Q28, C4

Citation Download Citation

KOBI ABAYOMI "Using Conditional Lorenz Curves to Examine Consolidation in New Zealand Commercial Fishing," Marine Resource Economics 27(4), 303-321, (1 December 2012). https://doi.org/10.5950/0738-1360-27.4.303

Published: 1 December 2012