The main purpose of any investment is to generate more money than the amount invested, the time it takes to do so is called the payback period (PBP) in capital budgeting. Payback period is wildly used by investors and entrepreneurs when they consider to open a new enterprise, invest in an existing business, or when they try to pick the best opportunity among two or more possible options.

For many years, the majority of economists based their financial theories on a few basic assumptions: all market participants are perfectly rational (investors aren't emotional at all), and they are also free from any biases or information processing errors. The real-life and practical economy showed that these assumptions don't work in many cases and people tend to behave irrationally from time to time.

All of the major countries’ central banks hold a significant portion of their reserves in foreign currencies. Why do they purchase them and why the U.S. dollar is the most popular reserve currency? In this article, we'll explain what the reserve currencies are, what purpose do they serve and why the world's central banks hold them.

Alpha (α) and beta (β) are two crucial coefficients that are used for measurement of success of a particular portfolio. Beta represents the volatility of a particular asset (or the whole portfolio) versus the volatility of the benchmark.

It's hard to make an entertaining and interesting film about the stock market for the masses, many filmmakers have tried (Margin Call, Rogue Trader, The Wolf of Wall Street, etc.), but most of them failed to attract an average person.