The paper defines concepts of real wealth and saving which take into account the intertemporal index number problem that results from changing interest rates. Unlike conventional measures of real wealth, which are based on the market value of assets and ignore the index number problem, the new...

This paper examines the influence of fashion on wealth accumulation in an economy with two groups of agents. Fashion is modelled as an externality generated by a particular dependence of individual agents' time preference on the two groups' per-capita consumption habits. It is shown that fashion...