sentences:  He was one of the pioneers of the forward estimates system, in March 1971 asking ministers to provide estimates of expenditure for future activities.He was an advocate of alternative measures of economic progress, stating "we must not fall too readily to exclusive worship at the altar of GNP [...] our prime concern should always be the social welfare of the community as a whole".He was also an early supporter of a broad-based national consumption tax, akin to the current GST.