Population Pyramids

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Population Pyramids

• A way to examine the structure of a population

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Population Pyramids, Explained

• https//ed.ted.com/lessons/population-pyramids-pow
  erful-predictors-of-the-future-kim-preshoff

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Influences on Pyramids

• Individual and/or Unique Factors
• Demographic Transition
• MDCs vs. LDCs

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Individual and/or Unique Factors

• Education, particularly for women
• Health care / health infrastructure
• War / civil unrest
• Religion
• Nationalism
• Individuals economic status
• A countrys economic make-up

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More Developed Countries (MDCs) vs. Less
Developed Countries (LDCs)
MDCs
LDCs

• More urban
• Higher GDP
• More democratic
• Less theocratic
• More gender equity
• Slower pop. growth
• Older populations

• Less urban
• Lower GDP
• Less democratic
• More theocratic
• Less gender equity
• Faster pop. growth
• Younger populations

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Dynamic Population Pyramids

• from the
• US Census Bureau

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Questions

• Why would a country 's leaders want to know the
  proportion of the population in different age
  groups?
• What difference does the age of the people in a
  country make? (People of different ages have
  different needs.)
• What kinds of products do young people use? What
  kinds of services do they need? (diapers, day
  care, toys, health care, schools, etc.)
• What about older people? (different kinds of
  health care, different foods, different products)
  Is it important for a government leader or
  planner to know the age of the population they
  are serving?

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Constructing your population pyramids

• Example Haiti

60
40-59
20-39
0-19
0
5
10
15
20
25
30
5
10
15
20
25
30
Male
Female
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A special case
Source AgeWorks.com
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Contrasting states
Source AgeWorks.com
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Source AgeWorks.com
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Population Pyramid Exercise