Cultural Diffusion and Regions

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Hierarchical Diffusion

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The spread of an idea or trait from persons or nodes of authority or power to other people or places.

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Stimulus Diffusion

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The spread of an underlying idea even though a specific characteristic is rejected or altered.

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Relocation Diffusion

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The spread of an idea through the physical movement of people from one place to another.

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Formal Region

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An area in which everyone shares one or more distinctive characteristics, often officially recognized.

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Functional Region

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An area organized around a central focal point, such as a city and its surrounding service area.

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Perceptual Region

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An area defined by people's feelings and attitudes rather than by objective data.

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Arithmetic Density

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The total number of people divided by the total land area.

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Physiological Density

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The number of people per unit of arable (farmable) land.

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Demographic Transition Model

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A model showing changes in population growth over time as a country develops economically.

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Antinatalist Policy

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A policy that discourages population growth by reducing birth rates.