BANGKOK, Dec 12 (Reuters) - Past economic crises have shown that a prolonged period of low interest rates could lead to financial imbalances and it is necessary to closely monitor the high growth of certain credits, the Bank of Thailand said on Wednesday.

At its November monetary policy committee meeting, members noted the outlook for the global economy had improved but that substantial risks remained, so 'it was important to preserve policy space for such contingencies', it said in minutes of the meeting.

The central bank left its policy rate unchanged at 2.75 percent at the meeting on Nov. 28, taking a more optimistic view on the global economy than at the previous meeting on Oct. 17, when it surprisingly cut the rate by 25 basis points.

(Reporting by Alan Raybould; Editing by Simon Cameron-Moore) Keywords: THAILAND ECONOMY/MINUTES

(Alan.Raybould@thomsonreuters.com)(+6626489721)(Reuters Messaging: alan.raybould.thomsomreuters.com@reuters.net)

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