274.Insum,underthelower-growth scenario andwithacontinuation ofthetypical relation between investment inwaterandsanitation andpercapita incomeand aggregate investment, only50percentofthepeopleinthedeveloping market economies wouldhavesafedrinking waterby1990and56percentbytheyear2000. Underthehigher-growth scenario, 60percentwouldhavesafedrinking waterbythe year2000.Similarly, withlowergrowthonly28percentofthe.population of thesecountries wouldhaveadequate sanitation by1990andonly34percent by2000.withhighergrowth, 40percentwouldhaveadequate sanitation bythe year2000. 275.Thedeveloping countries andtheinternational community thuswouldhaveto givemuchhigherpriority towaterandsanitation withinthetotalinvestment budgets projected evenwithhighergrowth, andextremely highpriority withinthe /...A/40/5l9 English Page124 limited totalinvestment projected underthelower-growth scenario, inorderto provide safedrinking waterandadeguate sanitation forallby1990orevenbythe year2000. Foradditional discussion ofproblems andprogress inmeeting thegoals oftheDecade, seedocuments E/C.7/l983/ll andA/40/l08-E/1985/49. 1/Distributed asdocument E/CN.5/l985/2, tobeissuedasaunitedNations publication. ~SeelLD,WorldLabourReport, vol.I,1984,p.7. l!The36leastdeveloped countries areAfghanistan, Bangladesh, Benin, Bhutan, Botswana, Burundi, CapeVerde,theCentral African Republic, Chad,Comoros, Democratic Yemen,Djibouti, Equatorial Guinea, Ethiopia, theGambia, Guinea, GUinea-Bissau, Haiti,theLaoPeople's Democratic Republic, Lesotho, Malawi, Maldives, Mali,Nepal,theNiger, Rwanda, Samoa, SaoTomeandPrincipe, Sierra Leone,Somalia, theSudan, Togo,uganda, theunitedRepublic ofTanzania, Burkina FasoandYemen. ifThethreeage-dependency ratiosaredefined asfollows: (a)the child-dependency ratioistheratioofthepopulation under15yearsofagetothe population between theagesof15to64yearsper1001(b)theaged-dependencY ratioistheratioofthepopulation 65yearsofageandovertothepopulation between theagesof15to64yearsperlOO,and(c)thetotal-dependency ratiois theratioofthecombined childpopulation under15yearsofageandtheadult population 65yearsandovertothepopulation between theagesof15to64years ofageper100. 2/GUyStanding, Labourforceparticipation anddevelopment (Geneva, International LabourOrganisation, 1978). ~N.Youssef, WOmen's employment andfertility: demographic transition or economic needsofmothers? (International CenterforResearch onWomen,1979),and R.Dixon,Ruralwomenatwork,strategies fordevelopment inSouthAsia (Baltimore, JohnsHopkins University press,1973). 21GUyStanding, "Women's workactivity andfertility", inDeterminants of fertility indeveloping countries, R.BUlatao andD.Lee,eds.(NewYork,Academic Press,1983),vol.I. ~E.Ware,"Women's workandfertility inAfrica", inThefertility of working women, Asynthesis ofinternational research, S.Kupinsky, ed.(NewYork, praeger Publishers, 1977)IandC.Oppong, "Family structure andwomen's reproductive andproductive roles: someconceptual andmethodological issues", in Women's rolesandpopulation trendsinthethirdworld, R.Anker, M.Buvinic and N.Youssef, eds.(London, CroomHelm,fortheInternational LabourOrganisation, 1982)• /...A/40/slg Engli sh Page 125 Notes (continued) "Direct econoRic costs and benefits of chilatrenn in Bulatao in Standing, ri{omen, s vrork and fertllityr, p. 525. Studies cited in Standing, I€bour forcep. I88; E. ware, Ioc. ci.t. r and R. L,"ffiii,oi.-2/and Lee, p/ \/J. cald$ell, op. cit. Studies cited structure and growthnl International Union for theNewsletter, 17 (.lanuary-April l9g3 ) .consequenceg scienti ficof popula tion si ze, study of popula tion,
**Analysis**
The text discusses the development of water and sanitation infrastructure in developing countries, highlighting the need for increased investment to achieve safe drinking water and adequate sanitation for all by 1990 and 2000. The text also touches on the importance of labor force participation and demographic transition in these countries. Given the focus on infrastructure development, demographic trends, and labor force participation, it is likely that the text falls under categories related to economic development and health.

**Category**
Economic development, Health