describe and explain how the proportions employed in each sector vary according to the level of development

•LEDCs

          •people in the poorest countries are dependent on primary industry 

          •many of them are subsistence farmers

          •other primary sector jobs are far too dangerous 

          •few work in other sectors as there isn't enough money to invest in the technology

          •people may move to cities, but the job numbers are few, leading to growth in the informal sector

•NICs

          •has a high number in manufacturing 

          •increase in wealth from industry and foreign investments means mechanisation

          •this means fewer are employed in the primary sector 

          •but as infrastructure develops, secondary areas decrease as businesses move to LEDCs for cheaper labour 

•MEDCs

          •they are ‘post-industrial’ societies 

          •most are employed in the tertiary and quaternary sectors as there is an increase in demand and reliance for services - first world problems

          •naturally moved away from secondary industries due to mechanisation and cheaper labour 

•200 years ago, most people were employed in the primary sector, living as subsistence farmers

•some made tools that were used in farming 

•100 years ago, the Industrial Revolution meant that fewer people worked in the primary sector and moved to the secondary 

•farming and industry became more mechanised and needed fewer workers

•coal became less abundant and industry faced increasing overseas competition

•at the same time, more people were needed to work in tertiary sector to provide services due to the economic growth