The euro was steady against the the dollar and the yen on Tuesday as the boost to sentiment from a Japanese stimulus plan and better-than-expected U.S. data fizzled out, with investors remaining wary of taking on risk. Falls in the euro were limited, however, as many in the market stayed sidelined ahead of the European Central Bank's rate decision on Thursday, where it is widely expected to leave interest rates on hold at 2 percent.

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