And if the initial stimulus triggers a cascade of expenditure among consumers and businesses, the multiplier can be well above one.

Companies to do their own brand of single model thus reducing the cost of promotional expenditure is conducive to the introduction of new products better understood by consumers.

Such a "consumers become more prudent with advancing age" observation is reinforced by the fact that retirees faced with dwindling savings typically husband income, and so expenditure, very carefully.