Japan's Megabanks

The Economist, 5 January 2006THE world's biggest bank, with $1.6 trillion of assets, opened for business on January 4th, and you are forgiven a few trips of the tongue before you can say �Bank of Tokyo-Mitsubishi UFJ� as readily as �Citigroup�, the number two. The new entity is the core bank of Mitsubishi UFJ, formed last autumn and one of three huge groups that now dominate retail banking in