Achieving cooperation in natural resource management is always
a challenge when incentives exist for an individual to maximise her short term
benefits at the cost of a group. We study a public good social dilemma in water
infrastructure provision on land reform farms in Namibia. In the context of the
Namibian land reform, arbitrarily mixed groups of livestock farmers have to share
the operation and maintenance of water infrastructure. Typically, water is mainly
used for livestock production, and livestock numbers are subject to high fluctuations