This paper addresses the relationship between property regimes and lan
d degradation outcomes, in the context of peasant agriculture. We cons
ider explicitly whether private property provides for superior soil re
source conservation, as compared to common property and open access. T
o assess this we implement optimization algorithms on a supercomputer
to address resource decision-making of individual households. We find
that conditions exist under which private property does not lead to th
e best environmental outcome. Access to farming technology and off-far
m employment opportunities are key factors in this result.