By Carla Mozee, MarketWatch

LONDON (MarketWatch)--European stocks slipped Wednesday, with a pull back in shares of broadcaster Mediaset SpA weighing on the benchmark index after it reached a six-year high.

The Stoxx Europe 600 index gave up 0.1% to end at 341.59. It ended Tuesday's session at its strongest closing level since January 2008, at 341.89.

Edging back from highs, European stocks gained no traction after the European Central Bank's chief economist said the low-inflation environment in the euro zone has policy makers considering measures to address the issue. Measures may include issuing a negative deposit rate on bank deposits. Such a move could prompt banks to make loans instead of leaving any surplus of money overnight at the ECB.

Bundesbank President Jens Weidmann late Wednesday reportedly said the German central bank would support action taken by the ECB, if warranted, but that not every measure the ECB discusses may be suitable to tackle the low-inflation problem.

"As the inflation outlook keeps on worsening, the pressure for the ECB to intervene is reinforced," Société Générale economist Herve Amourda who in a note also said French consumer prices, released Wednesday, in April "surprised on the downside."

Highlighting weakness in the euro zone's recovery, figures from the European Union's statistics agency showed industrial output in March was down 0.3% from February, and by 0.1% from the same month a year ago.

Standing out among the largest decliners on the Stoxx 600 index was Mediaset , falling 6.6% after the Italian broadcaster swung to a first-quarter loss of EUR12.5 million ($17.14 million), weighed by its domestic unit.

First-quarter results for Mediaset came in below expectations, and second-quarter advertising trends "are poor," said analysts at Barclays on Wednesday. "On this basis, we feel the shares discount too much recovery."

In London, ITV PLC fell 6.2% after the British broadcaster issued a trading update. But Compass Group PLC shares pushed up 1.6% as the food services company said it would return 1 billion pounds ($1.68 billion) to shareholders in a special dividend. The move follows an increase in first-half profit supported by growth in North America and emerging markets.

The U.K.'s FTSE 100 index shook off losses by the close, rising 0.1% to 6,878.49, which was enough to mark its highest finish since late December 1999.

The Bank of England on Wednesday in its May Inflation Report largely left forecasts for growth and inflation unchanged, indicating an increase in the benchmark interest rate from a record low 0.5% remains on course to take place early next year.

Among country-specific stock indexes, Germany's DAX 30 index ended down less than 1 point at 9,754.39 after Tuesday's close at an record high. Earlier Wednesday, EU-harmonized German inflation came in at 1.1% in April, broadly in line with forecasts.

France's CAC 40 index fell 0.1% to 4,501.04.

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