Diffusion confusion? No way! No way!. What is diffusion? Diffusion is the process by which an idea, object or innovation is transmitted across space…usually.

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Presentation transcript:

Diffusion confusion? No way! No way!

What is diffusion? Diffusion is the process by which an idea, object or innovation is transmitted across space…usually from one culture to another.Diffusion is the process by which an idea, object or innovation is transmitted across space…usually from one culture to another.

Kinds of diffusion Relocation diffusionRelocation diffusion Expansion diffusionExpansion diffusion

Relocation diffusion: idea, object or innovation spreads through someone permanently leaving an original location.Relocation diffusion: idea, object or innovation spreads through someone permanently leaving an original location. This is closely related to immigration/migration.This is closely related to immigration/migration.

Relocation diffusion: idea, object or innovation spreads…Relocation diffusion: idea, object or innovation spreads… This is can also pertain to a business and international trade.This is can also pertain to a business and international trade.

Expansion diffusion Type 1: Hierarchial Expansion comes from a person or node of authority or power.Expansion comes from a person or node of authority or power. Examples: urban to rural; a law is passed; popular icon does something good or bad.Examples: urban to rural; a law is passed; popular icon does something good or bad.

Expansion diffusion Type 1: Hierarchial Expansion comes from a person or node of authority or power.Expansion comes from a person or node of authority or power. In what way is “democracy” in Iraq hierarchial diffusion?In what way is “democracy” in Iraq hierarchial diffusion?

Expansion diffusion Type 2: Contagious Expansion catches on quickly.Expansion catches on quickly. Expansion is hard to stop, like the flu epidemic of 1918.Expansion is hard to stop, like the flu epidemic of Expansion can be desirable; example of AIDS treatment in U.S.Expansion can be desirable; example of AIDS treatment in U.S.

However, the spread of AIDS to the U.S. is more likely “relocation diffusion.”However, the spread of AIDS to the U.S. is more likely “relocation diffusion.” AIDS is Africa is “contagious.”AIDS is Africa is “contagious.”

Expansion diffusion Type 3: Stimulus Expansion of an underlying principle but the “main idea” doesn’t go with it.Expansion of an underlying principle but the “main idea” doesn’t go with it. Example: the MacIntosh mouseExample: the MacIntosh mouse In what way is “democracy” in Iraq stimulus diffusion?In what way is “democracy” in Iraq stimulus diffusion?