Investors' increasing allocation to international real estate is raising questions about the future of listed property companies. These are a popular choice with real estate investors in their home markets because they tend to be less volatile and more profitable than comparable asset classes. Most, though, tend not to invest outside their own countries. "Listed property companies are an excellent route to invest in local markets – they know the correct prices. And the market is comfortable with that specialization, because if you invest outside your local market, the risk...