Answer:
Efficient frontier analysis closely resembles a graphic system that breaks down risk performance and will show three levels. The return or investment of low, medium and high risk can help in the decision-making process. EFA reminds me of one of my favorite TV shows, Shark Tank. In Shark Tank you will see "sharks" or investors who choose to invest in a company, usually new companies, and often these investments have a high risk, but they could also have a high rate of return. As with most things, there are some limitations with the use of an efficient border analysis. A common limitation for EFA is the lack of reality that the return will always follow a distribution flow. EFA is not an exact science; It is difficult to identify and disaggregate. Stocks are a good example of EFA limitation. Investment actions are difficult to predict and preserve because there is a lot of unpredictability in the stock market.
NOTE: Explanation is in the answer.