Economics

external diseconomies

internal returns to scale

internal economies

internal diseconomies

constant returns to scale

Low level of investment

lack of modern technology

High rate of population growth

Low productivity

Dedicated leadership

middle-aged people in the population

young people in the population

women in the the population

old men in the population

old people in the population

Age structure

Occupation of workers

Proportion of men to women

Average length of the working day

Efficiency of the labour force

dependent population

maximum population

active population

productive population

optimum population