system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is efficient market hypothesis?


assistant
Efficient market hypothesis postulates that markets converge on a fair price with all available information being generally available to the market.  Thus it is not logical that any one person can beat the market, if all information is generally available.