Luxury hotel brand Langham is doubling the number of hotels in its global portfolio to 50 within the next five years. The hotelier said year-to-date, its revenue has grown by over 20 per cent compared to a year ago. And it's looking for more room to grow, including in the Chinese market, which Langham said will be driven by domestic demand. A night's stay at the Langham hotel in London will cost at...