NEW YORK ( TheStreet) - Bank Indonesia kept rate steady at 6.5%, as expected. However, we disagree with its dovish stance. Inflation pressures are rising, and tightening should have begun in 2010.Headline inflation was 7.0% year over year in December, the highest since April 2009 and well above the 5% +/- 1 percentage point target band for both 2010 and 2011. While much of this is driven by food prices (up 15.6% year over year over year in December), we note that core CPI has been creeping higher to 4.3% year over year in December. Indonesia offers high yields, good economic fundamentals, and strong equity market potential, but we think BI needs to establish some credibility by hiking soon. USD/IDR made a cycle low around 8881 in early November. We think there remains a significant risk of more capital controls should IDR retest that low. However, as investors in Brazil are finding, even a stable currency is palatable as long as high interest payments are being received. On the flip side, Taiwan is experiencing very limited price pressures and for now this supports the central bank's very cautious tightening path of 12.5 basis points per quarter. Headline CPI rose only 1.3% year over year in December even as core CPI remains below 1% year over year. For CBC, the argument for allowing a stronger currency to limit inflation is clearly not as compelling as it is for others in emerging Asia. Still, TWD outperformed in Asia during the fourth quarter after underperforming for most of 2010. With Taiwan rates now at 1.625% and the central bank continuing to intervene to limit TWD gains, we think that TWD outperformance is likely to wear off a bit in 2011 despite the very good underlying fundamentals from the economic ties to mainland China. However, we do expect TWD to continue rallying along with the rest of EM as investor sentiment remains positive. Here too, there is risk of more capital controls on further TWD gains. USD/TWD recently broke trendline support dating back to 2005. Near-term level ahead is around 28.95 (high from 1997 as well as 62% retracement level of the move since 1995). TWD gains will likely be a very slow grind.