SlideShare a Scribd company logo
 Everett Rogers—the main developer
◦ Adapted ideas from Gabriel Tarde and from the Hybrid
Seed Corn Study (Ryan & Gross)
 This theory has been used and studied across
many fields: Rural sociology, Medical sociology,
Anthropology, Economics, Marketing
 Innovation = An idea, practice, or object perceived
as new by an individual or other unit of adoption
◦ Software (necessary)
◦ Hardware (optional)
 The Diffusion of Innovations Theory attempts to
predict adoption of innovations. . . Typically, the
adoption follows a standard pattern:
The Classic S-Shaped Adoption Curve
The corresponding Classic Bell-Shaped Adopters Curve
The corresponding Classic Bell-Shaped Adopters Curve
Many studies have looked at how these groups differ:
Innovators are highly cosmopolite and open to new things.
Early adopters tend to be opinion leaders.
Early majority provide “legitimization” of the innovation.
Late majority are skeptical.
Laggards put trust in the status quo.
 Home Video
◦ Betamax  VHS  Laser  DVD  Blue-ray
 Home Video
◦ Betamax  VHS  Laser  DVD  Blue-ray

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Roger - Consumer Buying

  • 1.  Everett Rogers—the main developer ◦ Adapted ideas from Gabriel Tarde and from the Hybrid Seed Corn Study (Ryan & Gross)  This theory has been used and studied across many fields: Rural sociology, Medical sociology, Anthropology, Economics, Marketing
  • 2.  Innovation = An idea, practice, or object perceived as new by an individual or other unit of adoption ◦ Software (necessary) ◦ Hardware (optional)  The Diffusion of Innovations Theory attempts to predict adoption of innovations. . . Typically, the adoption follows a standard pattern:
  • 3. The Classic S-Shaped Adoption Curve
  • 4. The corresponding Classic Bell-Shaped Adopters Curve
  • 5. The corresponding Classic Bell-Shaped Adopters Curve Many studies have looked at how these groups differ: Innovators are highly cosmopolite and open to new things. Early adopters tend to be opinion leaders. Early majority provide “legitimization” of the innovation. Late majority are skeptical. Laggards put trust in the status quo.
  • 6.
  • 7.
  • 8.
  • 9.  Home Video ◦ Betamax  VHS  Laser  DVD  Blue-ray
  • 10.  Home Video ◦ Betamax  VHS  Laser  DVD  Blue-ray