Explanation

Correct Answer: C - Network effects are present in many older, pre-internet businesses.

Detailed Analysis:

1. Network effects refer to the phenomenon where the value of a product or service increases as more people use it. This creates a positive feedback loop where increased usage attracts more users.

2. Option A is incorrect: Network effects actually raise barriers to entry rather than lower them. When a company benefits from strong network effects, new competitors face significant challenges because they need to attract a critical mass of users to make their service valuable. Established networks have a competitive advantage that's difficult to overcome.

3. Option B is incorrect: Network effects are not created only when crowd sourcing is used. While crowd sourcing can create network effects, network effects exist in many contexts without crowd sourcing. Examples include:

   • Telecommunications networks (telephones)
   • Social media platforms
   • Operating systems
   • Credit card networks
   • Marketplaces (eBay, Amazon)

4. Option C is correct: Network effects have existed long before the internet. Classic examples include:

   • Telephone networks: The more people had telephones, the more valuable the telephone network became
   • Fax machines: Their value increased as more businesses adopted them
   • Credit card networks: More merchants accepting a card makes it more valuable to consumers, and more consumers using it makes it more valuable to merchants
   • Railroad gauges: Standardization created network effects
   • Language: The more people speak a language, the more valuable it becomes to learn

Key Takeaway: Network effects are a fundamental economic concept that predates the internet and digital technology. They create powerful competitive advantages and high barriers to entry in various industries, both old and new.