| Abstract: | The fall in the personal sector savings ratio to a record low last year has been a major factor behind the rapid growth of domestic demand in the past two years and the associated deterioration in the current account. It is also a major uncertainty in the Chancellor's Budget judgement. Existing econometric relationships for the consumption function have failed to predict the fall in personal savings over the past few years. Possible explanations include statistical error, the effects of financial deregulation, the housing boom, expectations of higher growth in incomes, and demographic influences. In this Viewpoint, we report on a new consumption function that successfully explains the decline in savings. It provides evidence of a major demographic influence resulting from the decline in the proportion of the population in the 45–64 age cohort, the main savers in society. Subsidiary effects arise from the boom in house prices, and statistical mis-measurement. The equation predicts an appreciable revival of savings over the next few years as the 45–64 age cohort grows again. These shifts in demographic structure reflect the after-effects of the Second World War. This new evidence suggests that the Chancellor has done quite enough to ensure a slowdown in consumption, and that he would be ill-advised to heed calls for special measures to boost savings. By contrast, well conceived tax changes that remove microeconomic distortions in the tax system (perhaps moving in the direction of an expenditure tax) would improve the tax structure, and may well increase the scope for tax cuts in future budgets. Our new consumption function also lends weight to the Chancellor's argument that the current account deficit is not a source of concern, insofar as it arises from a shift in savings associated with demographic changes that will be reversed in due course. |
