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As pound tumbles, UK faces sharp return of inflation

(Repeats from Thursday without changes)

By Andy Bruce

LONDON, Oct 13 (Reuters) - Prices are going to rise in Britain. The only question now is by how much.

The prospect that much-loved brands like Marmite spread and PG Tips tea might vanish from Tesco supermarkets is the first taste of what economists say will be rising inflation. Next up, the cost of fuel is likely to rise later this month.

The resilience of consumers since June's shock vote to leave the European Union will be tested in the coming months by the Brexit-induced fall in the value of the pound which hit an all-time low against a range of currencies on Wednesday.

Yields on long-dated British government bonds have jumped higher in recent days as markets brace for the return of inflation which briefly sank below zero in 2015.

Economists at some leading banks are predicting a leap to around 3 or nearly 4 percent by the end of next year, up from 0.6 percent in August.

A Reuters poll of economists on Thursday showed a wide range of forecasts for consumer price growth next year, but all agreed inflation will rise significantly from current levels.

"Rising inflation is rarely good news for consumers. But in a world of sluggish ... wage growth and low rates of return on savings, it is especially bad," Kallum Pickering, an economist at Berenberg Bank, said.

The poll's median forecast showed consumer price inflation will average 2.3 percent next year, above the Bank of England's 2 percent target. Economists think it will top 1 percent by the end of this year.

But predicting the path of inflation with much accuracy is something that forecasters - not least at the BoE - have struggled with over the years.

While there are established models showing how much a fall in the value of currencies will pass through into inflation, the variables surrounding the pound's plunge complicate the outlook, including oil prices which hit a one-year high this week.

Analysts expect further increases next year when the Organization of the Petroleum Exporting Countries plans, potentially with non-OPEC producer Russia, to cut production in a bid to rein in a global glut.

Some elements behind the expected rise in inflation are crystal clear.

The prices paid by factories for raw materials and goods - the first point in the inflation pipeline - grew in August at the fastest annual pace since late 2011.

The Petrol Retailers Association said British motorists can expect fuel pump prices to increase by 4 or 5 pence per litre by the end of this month, barring a rebound in sterling, from around 110 pence at the moment.