Tuesday, January 31, 2006

Population Pyramids

*Hey you guys really good discussion on Bird Flu. Some of you may want to keep this in mind as a topic for your Senior to Sophomore papers.*

Now here is an exercise on Population Pyramid Analysis. This would count as one of your comments for the week.

1) Go to the International Database at the U. S. Census Bureau

2) Using the scrolling list of countries, select a country, and then select the type of output. For this exercise, choose "summary" for the output, and then select the image size you wish to view.

3) View the output. Take notes on it, save the image to a disk for later viewing or print out the page for analysis later.

4) What shape is the pyramid? Is it inverted, is it jagged or smooth, or is it not a pyramid at all? By subtracting the age from the cohort you are looking at, note approximately when the people were born during a gap in the sides or during a peak in the population. What other interesting features do you see in the pyramid?

5) Repeat this process for at least 5 countries.

6) Write a post summarizing what you have found, noting which countries had similar shapes and which countries had gaps. Try and explain the shape of the pyramids, explaining the irregularities in population. Also comment on what the future holds for each country in general. Are some expanding or declining? Provide some hypotheses for what may be going on. Remember that ageing or youthful populations may have implications for the following: labor availability and unemployment, economic growth, the size and nature of markets, welfare services such as pensions, old peoples homes, educational provisions, and housing markets.

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