There are indeed monopoly in this world, Buffett said that a moat is the competitiveness of a business economy. Most companies have many competitors because a profitable industry attracts competitors to join in for a piece of the pie.
In this post, we’ll discuss the rebirth and fall of 4 technology stocks in 10 years.
The differences between Visa and Mastercard, I discussed on pages 96-99 of 2-4 in my book “The Rules of Super Growth Stocks Investing” that these two companies are a classic duopoly and both are profitable. I also wrote an article about these two companies previously on my blog. However, I am frequently asked a question by people “What is the difference between Visa and Mastercard?”