How does the CITES trade. ban on international trade in elephant ivory affe
ct the incentives to poach African elephants? In this commentary: the major
effects of a trade ban on poaching incentives are captured in a simple sta
tic model of world ivory supply and demand. It is shown that a trade ban ha
s ambiguous effects on poaching incentives. Although the ban reduces intern
ational ivory demand, official production as well as confiscations are with
held from consumer markets, increasing black market prices paid to poachers
. It is found that a trade ban is likely to reduce poaching if it leads to
a reduction in demand, if it facilitates interception of smuggled goods, if
there is little official production piling up and if it does not negativel
y affect law enforcement efforts. A numerical example based on the presente
d model indicates that the ivory trade ban is likely to reduce poaching. (C
) 2001 Elsevier Science B.V. All rights reserved.