US import demand for swordfish.

摘要

Recently, there have been concerns in the USA that harvest of swordfish is harmful or the stocks are poorly managed. This has led to several campaigns targeting swordfish in general as well as swordfish from specific source. The effect of campaigns and regulatory measures against specific sources depend on the demand structure. In this paper, the Generalized Composite Commodity Theorem (GCCT) is applied to test whether imports of swordfish can be treated as a separate group. US import demand for swordfish is then estimated using an Almost Ideal Demand System.