 farmers will react to policy
change, they assume a proportional response in total actions with
respect to a change in cost (e.g., doubling the cost of culling will
decrease stakeholder culling by <span class="math inline">\(1/2\)</span>). Farmers responding to policy are
interested only in minimising waterfowl’s exploitation of their crops,
so they will either cull or scare to remove the waterfowl from their
land, depending on which option is more effective (i.e., cheaper). This
is reflected in the botto