“…Physical quantities of goods and services produced by households (in all or some non-market activities) have been estimated in several studies, both in industrialised and in other countries (Clark, 1958;Chaput-Auquier, 1959;Morgan et al, 1962;Alauddin, 1980;Dahl, 1979;Finland, Ministry of Social Affairs and Health, 1980-86;Acharya and Bennett, 1981 ;Chadeau and Pouquet, 198 1 ;Evers, 1981 ;Morgan, 1981 ;Sanik and Stafford, 1983;Hill, Martha, 1985;Lorfing and Khalaf, 1985;Bivens and Volker, 1986;Chadeau andRoy, 1987 andFitzgerald and Wicks, 1990;etc. ) Of all these studies, the most comprehensive is the Finnish "Housework Study7' because it covers the whole range of households' non-market activities and was performed, in 1979, on a representative sample of some 2,000 households.…”