In June 2004 an informative piece of research was published by Khor Hung Teik in the Journal of the Socio Economic & Environmental Research Institute iin Panang. Malaysia. Fortunately for all of us, the volume exists in .pdf format online and can be downloaded at. It is well worth studying both for its content and methodology. More regions should undertake such work. See especially the section starting at the top of page six, Are We Ready for Elderly Tourists?:
Economic Briefing to the Penang State Government
http://www.seri.com.my/EconBrief/EconBrief2004-06.PDF