TOKYO -- As economic indicators go, few metrics grab more attention than gross domestic product. And when it comes to GDP, few countries are as closely watched as China and India, given their size and growing economic clout. But there are many reasons to doubt the reliability of the numbers coming from those countries.
It is not rare for them to significantly revise the figures later on, even to the extent of undermining the relevance of policy decisions and economic forecasts based on the figures.
