One sanitary goods strategy doesn't fit all of Asia's elder care markets

TOKYO -- Japan is at the forefront of Asia's aging curve, but it is hardly the only nation going gray. Over the next 30 years or so, the ratio of citizens aged 65 and older is expected to reach around 20% in a number of Southeast Asian countries, according to the United Nations. This is a major societal issue; it is also a potential source of business opportunities.