Mathprof,are you aware of strategic analysis in management science???

Your statistics in business consists mostly of amateurs, ploppies in wall street and entrepreneurism.

Heard of competitive advantage from management science? Which is exact to ev, an "environmental analysis" is a study of market conditions, transferring to bj, this is game conditions.

Professionals use important economic tools to gauge the advantage, penetration, no of decks, etc is socio-econ factors, political-legal, etc.

The 90% failure rate is nothing compare to the ploppy rate in Las Vegas. That is why Warren Buffet, Ken Fisher, Peter Lynch looks for management's track record.

(Let's ignore the weak-form of random walk for now)