1. Population An Introduction to Concepts and Issues
9th Edition John R. Weeks

2. A Demographic Perspective
Part One
A Demographic Perspective

3. Part Outline 1 Introduction to Demography 2 Global Population Trends
3 Demographic Perspectives
4 Demographic Data

4. Introduction to Demography
Chapter 1
Introduction to Demography

5. Chapter Outline What Is Demography? Why Is Demography Important?
How Will You Use This Information?

6. What is Demography? The scientific study of human population.
Concerned with:
Population size
Population growth or decline
Population processes
Population distribution
Population structure
Population characteristics

7. The Past Is a Foreign Country
1900
2000
World population (billions)
1.6
6.1
U.S. population (millions) 76
281
U.S. percent of world total
4.8%
4.6%
Life expectancy 47 77
Children per woman
3.5
2.1

8. The Past Is a Foreign Country
1900
2000
U.S. Population
Immigrants from Italy
(1900–1910); (1990–2000)
2 million
63,000
Immigrants from Mexico
50,000
2.2 million
% foreign-born
13.6%
11.1%
% urban
40%
80%

9. The Past Is a Foreign Country
1900
2000
U.S. Population
Number of passenger cars
8,000
130 million
% of population under 15
34.4%
21.4%
% of population 65+
4.1%
12.4%
Average persons per household
4.76
2.59
% high school graduates
10%
80%

10. Why is Demography Important?
Global issues that have important demographic components include:
Terrorism and regional conflict
Violence in sub-Saharan Africa
The backlash against immigrants
Globalization
The degradation of the environment

11. Degradation of the Environment
Every person added to the population requires energy to prepare food, to provide clothing and shelter, and to fuel economic life.
More than half a billion people face water scarcity.
Two to three billion live in areas that are water-stressed.

12. Demographics of Politics
The Census of Population provides data for the apportionment of seats in the House of Representatives.
Legislators ask questions about how population influences the programs:
Will increase in the older population bankrupt the Social Security system?
Would federal subsidies to inner-city areas help lower the unemployment rate?

14. Demographics of Social Planning
Local agencies use demographics to plan for services for their communities.
Sickness and health are affected by sociodemographic characteristics and the demand for services shifts with demographic trends.

15. Births and Selected Age Groups in the United States

16. Marketing Demographics
Segmenting markets - tailoring products and services to a specific demographic group
Targeting - aiming the advertising of a product or service to a specific demographic group
Cluster marketing relates demographic information about people to information about where they live.

17. Business Demographics
Demographics are an important component of site selection for many businesses.
Investors use demographics to find areas of potential market growth.
Human resource managers use demographics to increase their awareness of the special qualities and needs among their present and prospective employees.