iied
iied

Publications

Browse themes
About publications

Information for 8009IIED

On the overgrazing problem

Scott Barrett

Book/Report, 28 pages

A model of optimal range management is developed which explicitly recognises the dynamic interaction between livestock and carrying capacity. Compared with the usual bioeconomic model, the ratio of animals to "carrying capacity" must be too small in equilibrium. Furthermore, it may be optimal to overshoot the equilibrium following a drought. It is conjectured that the severe overgrazing in places like Africa's Sahel occurs not in an equilibrium situation but in times of drought when forces compel herders to hold onto their livestock just when optimality demands that they destock as quickly as possible.

Publication information

Download and Sharing

Free PDF 513k

Share with your network: