Within the standard linear framework, a methodology, formally similar to the labour theory of value, is proposed to compute the direct and indirect commodity contents of any produced good. The proposal is then compared with the more familiar social accounting matrix (SAM) accounting procedure,...

In economic literature, some information deficiencies and computational complexities have traditionally been solved through the aggregation of data. In input--output (IO) modelling, researchers have been interested in aggregation since the 1950s. Extending the conventional IO aggregation...