By Martin Dokoupil Slovak EU-harmonised inflation was higher than expected in November, at 3.7 percent year on year after a one year low of 3.1 percent in October, but analysts said the central bank is set to keep interest rates unchanged next week as the crown has firmed sharply and the outlook for inflation has improved. Over the month, prices rose 0.5 percent whereas they were unchanged in October, Statistics Office data showed on Friday. The market had expected November monthly inflation of 0.3 percent and 3.4 percent year-on-year. "The biggest factor behind the rise was the increase in natural gas prices and surprisingly high growth in food prices. On the other hand, lower fuel prices were taming the rise," said Tatra Banka analyst Juraj Valachy. "The figure is in line with the already released national index," said Valachy. Earlier this week, data showed inflation calculated under the local methodology stood at 0.6 percent on the month in November and 4.3 percent on an annual basis. Hikes to regulated energy prices boosted inflation to a 5.0 percent peak in summer. EU-norm inflation is the yardstick of price growth for the central bank. The central bank (NBS) has hiked its key rate by 175 basis points to 4.75 percent this year to curb inflation, a key challenge for Slovakia's plan to adopt the euro in 2009. But analysts said no change in the central bank's policy settings was likely on its Dec. 20 board meeting, after the crown's rally tightened monetary conditions. The inflation outlook has also improved as the energy market regulator slashed household natural gas prices and kept electricity costs flat next year. "The key factor to keep interest rates unchanged should be the currency's rally, which has tightened monetary conditions and contributed to a positive inflation outlook for the next year," said Lucia Steklacova, senior analyst at ING in Bratislava. The crown hit a record high of 34.620 per euro on Wednesday, but retreated to weaker levels after the central bank said its rise was too fast and not in line with fundamentals. The crown showed no reaction to the release, trading at 34.790 per euro , compared with Thursday's close of 34.770. It has gained 7.7 percent over the past three months, buoyed by a bullish regional mood and Slovakia's record economic growth. (Additional reporting by Martin Santa) ((Editing by Ian Jones; Reuters Messaging: martin.dokoupil.reuters.com@reuters.net; +421 5341 8402)) Keywords: SLOVAKIA ECONOMY/INFLATION
[BRATISLAVA/Reuters/Finance.cz]