Behavioral Bias Bingo: The Affect Heuristic
How do your feelings affect your decisions? "Humans perceive and act on risk in two fundamental ways. Risk as feelings refers to individuals' instinctive and [...]
How do your feelings affect your decisions? "Humans perceive and act on risk in two fundamental ways. Risk as feelings refers to individuals' instinctive and [...]
Hindsight bias: How we overestimate our prediction abilities People tend to overestimate their own predictive power when events have already occurred. This is commonly known [...]
Financial advisers are ubiquitous in the US, where many investors hire them to assist with investing, financial planning and other types of financial decision-making. Advisers [...]
Hyperbolic discounting and Present bias Executive Summary: "Intertemporal tradeoffs are ubiquitous in decision making, yet preferences for current versus future losses are rarely explored in [...]
Human beings crave certainty and loath ambiguity. People naturally gravitate towards the "sure thing" versus another option where the outcome is uncertain. Sometimes this is [...]
In the first part of our series, “Introduction to Behavioral Finance – Part 1: Behavioral Bias,” we explored several market anomalies, and the first required condition for the real-life implementability of many quantitative strategies: the existence of human behavioral biases. In this Part 2 of our series, we consider a related question following from our Keynes example: given that certain behavioral biases can affect investors, how can it be that their effects persist in markets so we can take advantage of them? This would seem to contravene the notion of efficient markets, and leads to the second required condition for implementing a tradable strategy: limits to arbitrage.
In this blog post, Part 1 of our two part series on Behavioral Finance, we explore human behavioral biases, how they affect us as investors, and how they are reflected in the stock market. In Part 2 of our series, we will explore the second required ingredient for profiting from behavioral bias: Limits of Arbitrage. Human behavior is diverse and complex and, unfortunately, despite our best intentions, it is not always governed exclusively by rationality. In particular, our judgment and decision-making can be significantly affected by intuition, a form of abstract, automatic thinking that can override our reason. Decades of research in psychology have shown that intuition is often systematically biased, and follows identifiable patterns, causing us to reach conclusions that are predictable wrong, since they are based on our gut or instincts, rather than on logic. An important aspect of behavioral biases is that they affect us in areas of our lives where it is very important that we be purely rational, such as in investing. In this blog post, we highlight a number of behavioral biases, and specifically how they can affect investors. Before getting into the specifics, we wanted to review some background we hope will be informative, and put the biases into an appropriate investing context.
Family businesses permeate our economy and the business world. According to a recent Forbes article, close to 80% of US businesses and 40% of the [...]
Would you trust a computer to drive your car? Google’s self-driving cars are now driving on city streets, and are rapidly becoming better drivers than [...]
The “anchoring bias” is firmly established in psychology circles, but a more recent area of focus within the field--social anchoring--is opening up some intriguing new [...]
John Bogle did a tremendous service to humanity when he launched the first index fund in 1975. By providing people with a passive, low-cost way [...]
Music to a value investor's ears: You shouldn't buy this stock at any price. Ben Graham advocated that we should always follow a cardinal rule [...]
It has been a long, cold winter on the East Coast. This has been very good for anyone long natural gas. Below is a chart, [...]
Financial news TV shows are a great place to wage philosophical battles, particularly with respect to investing, which tends to gets people’s juices flowing. Warren [...]
Many in the investing world feel that, when assessing securities for purchase, the more information that can be assembled, the better off the investor. In [...]
How can one optimize performance and decision-making when one is affected by scarcity? This is the subject of Part 2 of our 2-part scarcity series. [...]
China's banks are being buffeted by the winds of change. Earlier this month, the Shanghai Composite had its longest losing streak in 19 years, which [...]
"…Even the stupidest man knows by some instinct of nature…that the greater the number of confirming observations, the surer the conjecture." - Jacob Bernoulli In [...]
"…The inconveniences of a real scarcity cannot be remedied; they can only be palliated.” - Adam Smith, Chapter V, The Wealth of Nations As Adam [...]
Every quarter, boards across America wrestle with the complex question of dividend policy. Perhaps the company has excess cash that should be paid out as [...]
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