Abstract
The purpose of this current paper is twofold. Firstly it extends the analysis of an earlier paper by the authors, (Roe and Tyler 1977a). That paper was based on a semi-aggregated version of the 1970 Social Accounts Matrix (SAM) available for Sri Lanka, which incorporated 12 economic activities. The current paper is based on the full 48 sector accounts, and seeks to examine the implications of the greater disaggregation. Secondly, this current paper examines in greater depth the problem of key sector analysis when there are multiple objectives and multiple constraints, and shows how the choice problem may be reduced without resourse toany specified social welfare weightings. This paper should be read in conjunction with the earlier paper, and the qualifications and reservations expressed there apply equally to the current paper.
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