While greater rewards do not automatically produce better performance, it is helpful to establish some link between the two. This is seldom easy to do because public bureaucracies are expected to serve social and political objectives that are inherently hard to quantify. In addition, informal social relations between managers and their subordinates are often so strong that, even where "output" can be measured, supervisors are reluctant to jeopardize loyalties and friendships.
These considerations notwithstanding, some developing countries are starting to devise appraisal systems that link promotion and pay increases to individual performance. This requires, first, strengthening the capacity of personnel offices to work out such systems. Second, red tape can often be reduced.