However, there are reasons for counselling caution in such an en- deavour, The full-time payment of people for whom there is only intermittent work is a positive disincentive to work, both to these people themselves who inevitably will come to think that full-time work is abnormally onerous, as well as to those others who work full-time side by side with them and who will quite naturally resent the difference. It is advisable that the Government adopt and adhere to some general principle of wage determination, which should be based as consistently as possible on the principle ‘to each according to his work’. This means that the demand for regularisation of workers’ contracts should be transformed into a demand for the regularisation of work. g Discussions towards this end should deal in turn with all of the problems outlined in this paper. These discussions should proceed on the basis of some agreed timetable for regularisation, combined with the agreement of Government, workers and managers to im- plement certain changes in the interim. The final system evolved should set performance norms for all concerned, including managers, and eventually including those external institutions on which the performance of the industry depends to a large extent —the ministries, S.T.C. the cement factory, other suppliers. Ear- nings should be related to fulfilment of these norms and should fluctuate within a band extending from 15 per cent below to 15 per cent above the basic wage or salary, with the basic wage being earned at ‘normal’ performance levels. Though it should be obvious that the detailed schemes to be established must be worked out jointly by the various parties involved, some general points can be made here concerning the form such a scheme might take. In determining appropriate incentive schemes for employees within the firm three principles should be borne in mind: (i) workers should be paid according to their work, with the corollary that payment should be related to productivity while at work and that payment cease when there is no work. (i) efficiency is improved more through the thoughtful well- organised operation of a group, than through frantic hurry and haste on the part of individual members of the group, with the corollary that incentives should be group incentives encouraging such efficiency; 127