Objective : Distinguish between the different types of diffusion with examples of each.

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Diffusion Objective : Distinguish between the different types of diffusion with examples of each

Transcript of Objective : Distinguish between the different types of diffusion with examples of each.

Page 1: Objective : Distinguish between the different types of diffusion with examples of each.

Diffusion

Objective: Distinguish between the different types of diffusion with

examples of each

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What is diffusion?

The process by which an idea, object or innovation is transmitted across space… usually from one culture to another

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Relocation- spread of an idea through the physical movement of people from one place to another

Expansion- The spread of a feature from one place to another in a snowball process

Two kinds

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Immigration/Migration

Business/International Trade

Causes of relocation diffusion

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Types of Expansion Diffusion

Hierarchical

Cause: expansion from a person or

node of authority or power

Examples: urban to rural; a law is

passed; popular icon does

something good or bad

Contagious

Cause: expansion catches on quickly and is hard to stop

Examples: flu epidemic of 1918,

AIDS in Africa, AIDS treatment in the US

Stimulus

Cause: the underlying principle

expands specific characteristics do

not

Examples: the MacIntosh mouse

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What type of diffusion are each of the following?

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What makes expansion diffusion

more likely now than in the past?