Consumption is by far the largest component of Aggregate Demand. Around two-thirds of the total. Therefore rising consumer confidence will be good news for the economy as it struggles out of the double dip of this recession.
Consumers have been shell shocked since 2009. Real income is down due to low wage rises and inflation which is higher than the wage rises (in the public sector and some industries wages have been frozen or even fallen in money terms). Also the uncertainty associated with the recession, the Eurozone crisis and government cuts has led to a higher savings rate.
Currently the economy needs short-run growth desperately. Just using up more of the idle resources of the economy will help a lot. Output and employment will rise and there is then a good chance that a sustainable rate of growth will emerge. Households spending more will allow this to happen.
So the news from Visa that shoppers have spent more in September (around 3%) is great news. One swallow does not make a summer, but it really is a good sign.
The BBC report the figures and speculate on whether the economy has really turned the corner here.