The Key to Financial Success: Investment, Speculation, and Gambling
Jason Wang
Ph.D/ MBA / CEO/CFO/Manufacturing/Renewable-Energy/Fin-tech/Business Serve/USA
Introduction
Investing, speculating, and gambling all seem to be activities shrouded in uncertainty. Entrepreneurs and investors often use phrases like "Let's take a gamble," which might give the impression that these activities involve blindly betting on an invisible future. In reality, the distinction between investing, speculating, and gambling can significantly impact your financial success.
Defining the Differences
To distinguish these terms effectively, let's use a straightforward approach:
Understanding Expected Value
Expected value, a simple yet often misunderstood concept, forms the basis of this distinction. In probability theory and statistics, the expected value of a random variable is calculated by multiplying each possible outcome by its probability of occurring and then summing them up. In simple terms, it represents the average result you can expect from a random experiment when repeated numerous times.
For instance, when rolling a fair six-sided die, the expected value for each roll is:
E(x) = (1/6) 1 + (1/6) 2 + (1/6) 3 + (1/6) 4 + (1/6) 5 + (1/6) 6 = 3.5
This simple framework of expected value is the foundation of most investment strategies and decisions made by financial experts. It serves as a crucial tool for assessing the potential outcomes of an investment.
Calculating Expected Value
Let's examine an example of investment to clarify the concept of expected value. Suppose you're considering an arbitrage opportunity as a result of a merger announcement between Company W and another firm. You aim to buy Company W's stock when the price is $30.50 per share. If the merger succeeds, the stock price might increase by $3, and if it fails, the price could drop by approximately $6.
You estimate an 85% chance of the merger succeeding and a 15% chance of it failing. To calculate the expected value, multiply the possible outcomes by their corresponding probabilities:
(Upward potential) = $3 85% = $2.55 (Downward risk) = -$6 15% = -$0.9 Adding these values together, the expected value of this investment is approximately $1.65 per share. This investment is expected to yield a 5.5% return in three months, translating to an annualized return of approximately 22%.
The Power of Expected Value
The concept of expected value provides a framework to analyze decision-making and betting in the face of future uncertainties. It allows you to assess the potential outcomes and probabilities in the context of your investments.
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Even though calculating expected value seems simple, it often stumps many professionals. Renowned investors like George Soros partner Jim Rogers made fundamental mistakes when trying to grasp such concepts.
The Notion of Risk and Probability
The probabilities of price increases or decreases, as well as the chances of a successful trade, should be combined within the expected value framework. Regardless of how accurate your predictions may seem, unforeseen outcomes can still occur.
Like rolling a die, the expected value may be 3.5, but there's still a 1/6 chance of rolling a 6. Therefore, the expected value offers a kind of "fuzzy precision," with greater accuracy achieved through more repetitions.
The Kelly Criterion
However, understanding expected value is not enough; you need to address your betting strategies, as well. To determine the optimal bet size concerning your capital, investors often turn to the Kelly Criterion. It guides investors in managing their bankroll prudently.
The Kelly Criterion emphasizes the maximization of the geometric mean (geometric average) of your returns, and it is most effective for bets with a positive expected value. It helps you find the right proportion of your capital to invest, allowing you to maximize your long-term returns.
Risk Management and Capital Allocation
Effective risk management is essential for ensuring your survival in the world of investing. In addition to assessing the expected value of investments, understanding how much capital to allocate and employing a sound risk management strategy are crucial. If your bets are too small, your gains may be slow, but if they're too large, you might risk losing your entire capital.
A Guiding Principle
Before you can succeed, you must live to fight another day. This simple guiding principle underlines the importance of capital preservation. The art of investing lies not only in understanding expected value but also in carefully managing your bets' proportions and durations.
Conclusion
To achieve consistent, positive financial results, you need a combination of several elements:
Remember, financial success isn't solely about investments but also about realizing that wealth grows through persistence, consistent decision-making, and focusing on positive expected values.