Oki Matsumoto, chief executive officer of online trader Monex Group Inc. and a former Goldman Sachs Group Inc. partner, has a solution to the stagnant economy: Learn "globish."

Matsumoto holds regular parties at the Tokyo-based company where employees must speak globish, or global English, a language for nonnative speakers using basic grammar and a vocabulary of 1,500 words.

Fast Retailing Co. and Rakuten Inc. are also promoting English to help employees communicate with international partners and expand overseas.