Indicators
which stress the self-sufficiency level of the
farm, such as the indicator of farm autonomy, and the
willingness of the farmer to pursue this goal, such as
the indicator of voluntary re-use, should be taken into
consideration when establishing economic support
policies for farmers. Conversely, taxes or disincentives
might be imposed according to the magnitude of
the indicator of dependence on non-renewable energy.
In conclusion, APIs as cognitive elements can play a
doubly useful role by