The Vital Few or the Trivial Many?

When the Pareto Principle [1] was popularized within business and engineering in the 1940s by Dr. Joseph Juran, he called his theory "The Vital Few and the Trivial Many" [3] : A few vital inputs produce most of the results. For many years now that has been how we are taught to prioritize ideas and activities in business. However, thanks to the Internet, the Pareto Principle is being falsified [4] in various domains.
The insight comes from power law theory [2]. As one can see in the figure to the right (from wikipedia) , a power law distribution can be split into a vital few (the green area) and the trivial many (the yellow). What is happening for many products and services sold via the Internet is that demand is shifting down the tail - making the tail fatter and the head slimmer! According to [5] there are 3 reasons for this:

1. Cost of production of many products from music and books to Internet services is falling, thereby creating more available products in the tail.
2. Cost of inventory and distribution is falling though JIT production, digital content and application hosting. The marginal cost of one more product ore product feature in the inventory is extremely small, making it profitable for low volume sales of one item.
3. The Internet and it's search engines and communities are creating new ways for consumers and businesses to find more specialized products and solutions that fit their exact tastes and needs.
   

This insight is rather extraordinary because it shows that lucrative business opportunities exist where there was said to be none. Furthermore, there are signs that the profit margin is larger and the competition smaller at the tail per unit than at the head. Sounds like faster money to me!

[1] The Pareto Principle
[2] Power Laws and Long Tails
[3] The Vital Few and the Trivial Many (external)
[4] Falsifiability (external)
[5] The Long tail (exteral)