“…The principal-agent literature is concerned with situations in which one actor (the principal, e.g., a landowner) contracts another actor (the agent, e.g., a share-cropper) to carry out work on the principal's behalf (Eisenhardt, 1989;Levacic, 2009;Stiglitz, 1988). The principal-agent problem arises where (a) the interests and objectives of the two parties conflict or at least are not completely aligned, (b) it is not technically or economically feasible for the principal to verify exactly how well the agent is carrying out the work in question (with respect to time, effort, and diligence), (c) the principal and agent have different attitudes to risk.…”