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Behavioral finance (BF) is a field that has grown during the past two decades in part as a reaction to the phenomena described above. Using a variety of methods researchers have documented systematic biases (e.g., underreaction, overreaction, etc.) that occur among professional investors as well as novices.
Behavioral Finance attempts to explain the reasoning patterns of investors and measures the influential power of these patterns on the investor's decision making. The central issue in behavioral finance is explaining why market participants make irrational systematic errors contrary to assumption of rational market participants. [1]
A behavioral portfolio bears a strong resemblance to a pyramid with distinct layers. Each layer has well defined goals. The base layer is devised in a way that it is meant to prevent financial disaster, whereas, the upper layer is devised to attempt to maximize returns, an attempt to provide a shot at becoming rich.
The behavioral theory of the firm first appeared in the 1963 book A Behavioral Theory of the Firm by Richard M. Cyert and James G. March. [1] The work on the behavioral theory started in 1952 when March, a political scientist, joined Carnegie Mellon University, where Cyert was an economist. [2]
Behavioral finance theory attributes stock market bubbles to cognitive biases that lead to groupthink and herd behavior. Bubbles occur not only in real-world markets, with their inherent uncertainty and noise, but also in highly predictable experimental markets. [ 1 ]
Prospect theory is a theory of behavioral economics, judgment and decision making that was developed by Daniel Kahneman and Amos Tversky in 1979. [1] The theory was cited in the decision to award Kahneman the 2002 Nobel Memorial Prize in Economics .
In mental accounting theory, the framing effect defines that the way a person subjectively frames a transaction in their mind will determine the utility they receive or expect. [11] The concept of framing is adopted in prospect theory , which is commonly used by mental accounting theorists as the value function in their analysis (Richard Thaler ...
Hyperbolic discounting is mathematically described as = + where g(D) is the discount factor that multiplies the value of the reward, D is the delay in the reward, and k is a parameter governing the degree of discounting (for example, the interest rate).