A new method based upon age determined population ratios is described and used to estimate household population intensities (households per person). Using an additive and a bounded model household projections are given to 2050 for the world and to 2030 for seven fertility transition subgroups...

This paper presents estimates for a thirty year period of Australia’s Gross Household Product (GHP), the economic value added by unpaid labour and the households own capital. In 2000 GHP was estimated to be worth $471 billion. Gross Market Product (GDP minus the imputed value of owner-occupied...

This paper outlines the beginnings of a general theory of critical events. Four types are defined. Two are micro-events each affecting a small number of people and are shown to arise in everyday life. Two are macro-events that affect large numbers of people and are related to ‘shocks’ in...