Fasten your seatbelts - deflation is back

The retail price index fell by 0.4% last month for the first time since March 1960. But should that worry anyone? Ruth Jackson finds out.

Deflation has arrived. The latest National Statistics Office figures reveal that the retail price index (RPI) fell by 0.4% last month for the first time since March 1960. Yet the consumer price index (CPI) the government's (and EU's) preferred measure of inflation is still rising at 2.9%. Confused? The difference arises largely because the RPI includes the cost of home loans. And these have been helpfully reduced by the many recent interest-rate cuts. So should a negative RPI worry anyone?

In short yes. But the impact will vary considerably. The falling mortgage costs implied by negative RPI will help households with tracker mortgages, for example. But if those households also include any private-sector workers they may suffer at their next pay review. Many private companies use the RPI as a guide for pay rises. Should it stay negative, some workers may face pay freezes, or even reductions as struggling firms look for ways to cut costs.

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Ruth Jackson-Kirby

Ruth Jackson-Kirby is a freelance personal finance journalist with 17 years’ experience, writing about everything from savings accounts and credit cards to pensions, property and pet insurance.

Ruth started her career at MoneyWeek after graduating with an MA from the University of St Andrews, and she continues to contribute regular articles to our personal finance section. After leaving MoneyWeek she went on to become deputy editor of Moneywise before becoming a freelance journalist.

Ruth writes regularly for national publications including The Sunday Times, The Times, The Mail on Sunday and Good Housekeeping, among many other titles both online and offline.