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living by subsistence farming. This sector is especially vulnerable to poverty <strong>and</strong> inequality: one<br />

bad crop can threaten the health <strong>of</strong> a whole family. 38<br />

Globalization, the process that induces more societies <strong>and</strong> increased interdependence <strong>and</strong><br />

integration <strong>of</strong> economies <strong>and</strong> societies around the world, has opened up new opportunities in<br />

terms <strong>of</strong> increased trade, wider markets, foreign investment, new technologies, exp<strong>and</strong>ing media<br />

<strong>and</strong> Internet connections <strong>and</strong> cross-border flows <strong>of</strong> people <strong>and</strong> knowledge. The "HDI” human<br />

development index ranks the relative "development" <strong>of</strong> the world's countries based on three<br />

indicators: longevity, as measured by life expectancy at birth; educational attainment, measured<br />

by a combination <strong>of</strong> adult literacy rate (two thirds weight) <strong>and</strong> combined gross primary,<br />

secondary <strong>and</strong> tertiary enrolment in schools (one third weight); <strong>and</strong> st<strong>and</strong>ard <strong>of</strong> living, as<br />

measured by GDP per capita - PPP (purchasing power parity) US$. 39<br />

Figure 11: Human development index<br />

Source [45]<br />

38 Sustainable Development in Sierra Leone [online]. 2012.03 [cit.2012.03.24]. Found from:<br />

http://www.umcor.org/UMCOR/Resources/News-Stories/2012/March/Sustainable-Development-in-Sierra-Leone<br />

39 Human development [online]. 2004 [cit.2012.04.14]. Found from:<br />

http://www.theglobaleducationproject.org/earth/human-conditions.php<br />

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