The variable Percentage Area Owned is a categorical variable, and is intended to
capture the effect of landownership on the adoption of diversity strategies. Some studies
conclude that the probability of adoption of new practices is higher for farmers who
cultivate their own land (Nowak, 1987; Sunding and Zilberman, 2001), particularly if
the benefits are not visible in the short run as is the case of most investments in
sustainable agriculture, like for example soil conservation (Gebremedhin and Swinton,
2003).