Tokyo is one of the most densely populated cities in the world, while rural areas of Japan are suffering with ageing populations and declining birth rates.Asia-Pacific markets traded mixed Wednesday, after Wall Street declined as investors awaited the key monetary policy decision from the U.S. Federal Reserve's two-day meeting, where it is expected to cut interest rates.Japan's benchmark Nikkei 225 index reversed losses from the start of the trading session to rise 0.17%, while the Topix index fell 0.4%.The ...