1.Easter Island Collapse: a Tale of Population Race

David De la Croix
http://ssrn.com/abstract=975070

2.On modeling human behavior and institutions in simple ecological economic systems

Author: Anderies J.M.

Source: Ecological Economics, Volume 35, Number 3, December 2000 , pp. 393-412(20)

http://chinesesites.library.ingentaconnect.com/content/els/09218009/2000/00000035/00000003/art00221