Extra Credit Study Guide

Chapter 4 – Disruptive Innovation

Vocabulary

Disruptive technology / disruptive innovation (Textbook, Ch. 4): A technology that starts simple or low‑quality but eventually replaces established products or firms. Example: Netflix streaming disrupting DVD rentals like Blockbuster.

Sustaining innovation (Textbook, Ch. 4): Incremental improvements to existing products driven by current customers’ needs. Example: Annual upgrades to smartphone cameras.

Enabling technology (Textbook, Ch. 4): A technology that lowers cost or complexity, making products accessible to more people. Example: Cloud computing enabling streaming services.

Technology price elasticity (Textbook, Ch. 4): Demand increases sharply as the price of a technology falls. Example: Smartphones becoming widespread as prices dropped.

Value network (Textbook, Ch. 4): The system of partners, suppliers, and customers that must benefit for a technology to succeed. Example: App developers and users supporting mobile platforms.

Disruptive vs. sustaining innovation (Textbook, Ch. 4): Disruptive innovation targets new or low‑end markets, while sustaining innovation improves existing products. Example: Streaming services vs. DVD quality improvements.

Envelopment (Textbook, Ch. 4): When a dominant firm absorbs another product by bundling its features into an existing platform. Example: Microsoft bundling Internet Explorer with Windows.

Cannibalism (business) (Textbook, Ch. 4): When a new product reduces sales of a company’s existing product. Example: New iPhones reducing sales of older models.

Cash cow (Textbook, Ch. 4): A product that generates steady profits with little investment. Example: Microsoft Windows.

Creosote bush (Textbook, Ch. 4): A metaphor describing how dominant firms crowd out smaller competitors. Example: Large tech platforms limiting startup growth.

Fixed costs (Textbook, Ch. 4): Costs that remain constant regardless of production level. Example: Factory rent.

Key performance indicators (KPIs) (Textbook, Ch. 4): Metrics used to evaluate how well a company achieves its goals. Example: Customer retention rate.

Long tail (Textbook, Ch. 4): A strategy focused on selling many niche products rather than a few hits. Example: Netflix’s large catalog of lesser‑known films.

Marginal costs (Textbook, Ch. 4): The cost of producing one additional unit. Example: The near‑zero cost of streaming to one more user.

Quiz

Question 1

Early digital cameras entered the market with poor image quality but later replaced film cameras. Which characteristic of disruptive technology does this illustrate?

  • A. Early appeal to high‑end customers
  • B. Initial performance exceeding expectations
  • C. Entry with attributes existing customers do not value
  • D. Dependence on sustaining innovation
Question 2

Why did Blockbuster struggle to respond to Netflix?

  • A. Netflix had stronger branding
  • B. Blockbuster focused on sustaining innovation
  • C. Streaming required high capital intensity
  • D. Customers preferred lower quality
Question 3

What helped ride‑sharing services disrupt the taxi industry?

  • A. High switching costs
  • B. Strong regulation
  • C. Enabling technology and new business models
  • D. Increased supplier power
Question 4

Why might incumbents ignore early disruptive innovations?

  • A. They target customers who value different attributes
  • B. They require high development costs
  • C. They outperform existing products
  • D. They rely on brand loyalty
Question 5

What problem do incumbents face when disruptive technology becomes “good enough”?

  • A. Excessive regulation
  • B. Lack of resources
  • C. Moving too slowly in response
  • D. Weak value networks

Answer Key

Q1: C
Q2: B
Q3: C
Q4: A
Q5: C

Sources