from 65 per cent of Central government revenue to 92.9 per cent in 1984; in Uruguay from 73 per cent in 1981 to 77 per cent in 1985; in Venezuela from 8.6 per cent to 31.5 per cent.
Rabbi Concepts of capital employed and fair return have been changing with the times.
Return on net worth is a very sound concept hut it should he seen along with other concepts like turnover of capital and utilisation of surplus.