EghtesadOnline: While Japan’s failure to spur inflation continues to generate angst about the nation’s future, gross domestic product data this week is likely to show that the economy has still managed to eke out five straight quarters of expansion.

EghtesadOnline: Japan's economy grew for a fourth straight quarter in the final three months of last year as a weaker yen supported exports, but tepid private consumption and the risks of rising U.S. protectionism cast doubts over a sustainable recovery.