Homework3_07text - Econ 171-EEP 151 Fall 2007 Alain de...

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Econ 171-EEP 151 Alain de Janvry Fall 2007 Lourdes Rodriguez & Melissa Hidrobo Exercise #3 Population, growth, and the environment Due October 25, 2007 I. Analysis of the population structure The U.S. Census Bureau (International Data Base) gives information on the population size and the population by age groups for all countries in the world for 2007, 2025, and 2050 at the following website: http://www.census.gov/ipc/www/idb/idbsprd.html In Excel file “Homework3_07data.xls”, we extracted data for you on four countries with sharply contrasted population dynamics: Niger, India, Mexico, and Japan. They illustrate how population growth and the pyramid of ages change as GDP per capita rises and economies transform. Worksheet “Tot pop” gives the total population from 1950 to 2050 Worksheet “Pyramids” gives the population in each age group for 2007, 2025, and 2050. 1. Plot the total population of each country over the 1950-2050 period (each on a small separate graph). What do you see? Can population stabilize and even decline?
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