Warren Buffett has a simple explanation for how he invests — and it's easy to replicate (MOAT)

Warren Buffet's "economic moat" idea sparked its own index and ETF.
The fund is decided by committee and has performed well since it's inception. 
In a 1999 interview with Fortune, legendary investor Warren Buffett coined the term "economic moats" to sum up the main pillar of his investing strategy. He described it like this:
"The key to investing is not assessing how much an industry is going to affect society, or how much it will grow, but rather determining the competitive advantag