Currencies

Mexico central bank raises key interest rate to 7.5 percent

Mexico's central bank has decided to raise its key interbank interest rate from 7.25 percent to 7.5 percent, citing expectations of a U.S. rate increase in March and continued volatility in exchange rates for the Mexican peso.

Markets Right Now: Asian shares tumble, Nikkei drops 7.1 pct

The latest on developments in financial markets (All times local): Midnight Top Japanese officials are seeking to downplay concerns about plunging share prices, pointing to strong growth and corporate earnings as reasons for calm.