Unit 6

1. Fast-growing suburban cities with large populations but not traditional downtown areas.
3. Less developed countries that depend on core countries and provide raw materials and labor.
6. Cities with a population of over 10 million people.
8. Model: A model that predicts interaction between two places based on population size and distance.
9. City: A city that has a major influence on global economic, political, and cultural systems.
11. Place Theory: A theory by Christaller that explains how cities are located and how they provide goods and services to surrounding areas.

2. Cities with a population of over 20 million people.
4. Residential areas beyond the suburbs where people live but commute to the city for work.
5. City: A city that is more than twice as large as the next largest city and dominates a country’s economy, politics, and culture.
7. World Systems Theory: A theory that divides the world into core, semi-periphery, and periphery countries based on economic development.
10. Size Rule: A rule stating that the population of a city is proportional to its rank in the country (2nd largest is 1/2 the size of the largest, 3rd is 1/3, etc.).
12. Cities: Large centers of business, shopping, and entertainment located on the outskirts of cities, usually near highways.