China is opening its financial firms to more foreign ownership. The opportunity might seem tempting. But developed-world buyers should beware — it’s possible that it’s a trap. On November 10, Vice Finance Minister Zhu Guangyao announced changes in the rules limiting foreign ownership of Chinese financial companies. Foreign investors will now be allowed to take controlling interests in Chinese securities …

Asia’s two rival financial centers are starting to look very different, and the gap is going to widen. The divergence of Singapore and Hong Kong is already evident in the quality of their transportation networks. MTR Corp.’s main rail lines in Hong Kong have been glitch-free for 5.6 million kilometers of passenger journeys on average this year, while Singapore’s subway …

Later this month, the Bank of England will publish the results of new stress tests on the UK banking system. With Britain facing the risk of a disorderly exit from the European Union, the exercise is even more important than usual. A so-called cliff-edge Brexit is looking more likely. This could cause a sizable fall in gross domestic product, a …