development objectives: higher population densities and overcrottding, an unfavourable age-structure with a high dependency ratio, Iarge increments aaldeal to the nork force each year creating a need for correspondingly large increases in employment' and difficulties of financing increased social services from already inadequate government revenues. Table 57. Ilumair resources and skills of different world economic regions, 1960 and 1980 Dependency ra tio 1960 19 80Adult literacy tate alPopula tion density b,/1960 1980 Developed market economies Developing market economies Least developed economies2.35 2.54 2.372.79 2.5s:t).r 46 .3 24 .Lt9 .7 L2.623 .7 33.8 21.r €rer Department of International Sconomic and Social. Affairs of the United NaCions Secretariat. Dates relate to most recent vear avaiLable. Expressed in population per square kilometre.v P_/A/ 40 /5I9 Engli sh Page 150 314. ronger-term problens in the developnent of human resources characterize thelabour force of all least developed countries. High revels of illiteracy prevailin those countries and school enrolment ratios are rou, particurarry at the moreadvanced levers, eith the result that there exists.an acute scarcity of trainedpersonnel and skills in arl occupationar categories. Data in annex table 11 shoi,that the secondary school enrolment rate of the least developed countries taken asa vrhole is onry 12 per cent and that only a little over one half of all chllalrenbetween 6 and ll years of age attend school-. Enrolment rates for girls andlileracy rates for $onen are ext.remely 1or.r, A heavy reliance on expatriates in thetrade and otber service sectors and in the area of industriar oanagenent is also arefrection of this situation. weak educationar systems arso characterize hlghereducationi consequently, training for hiqh-level technical occupa tions such asmedicine, science and the law must be obtained ersewhere and the number of peopletrained in Lhose areag is 1o!r in relation to the populations of those countries.
**Analysis**
The text discusses the challenges faced by least developed countries in terms of human resources, particularly in education and employment. It highlights the problems of high illiteracy rates, low school enrollment ratios, and a scarcity of trained personnel in various occupations. The text also touches on the reliance on expatriates in certain sectors and the need for training for high-level technical occupations.

**Category**
Economic development, Education, Employment