Shortly after Nokia announced that earnings and growth will be lower for one quarter due to its product cycles, the market responded (July 27, 2000) by trading nearly 3% of the companies entire cap and thereby erasing nearly $70 billion in market capitalisation. That means that although the company’s earnings per share where up 77% over the previous year, the share price went down 27% on 121 million shares traded, because of one single announcement. How is this to explain?
First the theory of modern finance will be described. Then the text continues with the mergence of behavioural finance and the third part presents some of the behavioural factors that influence decision making according to behavioural finance. Criticism of behavioural finance will follow and the assignment will end with my conclusion.
Table of Contents
I. Introduction
II. Modern Finance
III. Emergence of Behavioural Finance
IV. Behavioural Factors
V. Criticism of Behavioural Finance
VI. Conclusion
VII. Sources
Objectives and Core Topics
This paper aims to explore the field of behavioural finance by contrasting it with traditional market theories. It investigates the psychological biases that influence individual and group decision-making processes, ultimately questioning the assumption of perfect investor rationality in financial markets.
- The theoretical foundations of modern finance versus behavioural finance.
- Key behavioural factors such as overconfidence and loss aversion.
- The role of heuristics and crowd psychology in financial decision-making.
- Critical perspectives and the limitations of current behavioural finance models.
- The impact of human psychology on market anomalies and stock price fluctuations.
Excerpt from the Book
Overconfidence
A lot of people are overconfident in their own judgement and confidence. Studies support this assumption, for example do 82% of people say that they are in the top 30% of safe drivers. Especially experts tend to overestimate their predictive skills, theories and models resulting in the illusion of having special, valuable information that enable them to beat the market and do better than other investors. Maybe money managers even have to be overconfident in order to manage this huge amounts of other peoples’ money. But why does the degree of overconfidence not decline over time? Should not experience make people more realistic about their capabilities?
Human beings tend to remember failures very differently from successes. Whereas investors ascribe success to their own ability and insight, disasters are due to bad luck.
One outside effect of overconfidence is excessive trading. Although it is proven that high turnovers lower the average return because of the trading costs, this effect might even increase because of the possibility to trade at online brokerages. Additionally, overconfidence leads people to have insufficiently diversified investment portfolios.
Summary of Chapters
I. Introduction: Presents the motivation for the study using the example of Nokia's market reaction and outlines the structure of the paper.
II. Modern Finance: Discusses the traditional view that markets consist of rational individuals and relies on established asset pricing models.
III. Emergence of Behavioural Finance: Tracks the historical shift toward incorporating psychological insights, such as prospect theory, into financial analysis.
IV. Behavioural Factors: Details specific psychological drivers including overconfidence, prospect theory, heuristics, and the influence of crowd behaviour.
V. Criticism of Behavioural Finance: Examines counter-arguments from traditional finance theorists regarding the empirical evidence and the lack of an integrated model.
VI. Conclusion: Synthesizes the findings, suggesting that a combination of both traditional and behavioural approaches is necessary to understand market phenomena.
VII. Sources: Provides a comprehensive list of the academic literature and digital resources utilized for the research.
Keywords
Behavioural Finance, Modern Finance, Prospect Theory, Loss Aversion, Overconfidence, Heuristics, Market Anomalies, Investor Rationality, Financial Markets, Decision Making, Mental Accounting, Regret Aversion, Crowd Psychology.
Frequently Asked Questions
What is the primary focus of this paper?
The paper focuses on the field of behavioural finance, exploring how psychological factors deviate from traditional economic theories of rational decision-making in the stock market.
Which central themes are examined?
The core themes include market efficiency, the impact of psychological biases on trading behaviour, the emergence of behavioural finance as a discipline, and the ongoing debate regarding investor rationality.
What is the main objective of the research?
The objective is to explain market anomalies—such as bubbles and crashes—that traditional models fail to clarify, by integrating psychological insights into financial decision-making processes.
Which scientific methodology is applied?
The work employs a literature-based analytical approach, examining seminal research and psychological theories to contrast traditional financial assumptions with behavioural observations.
What topics are discussed in the main body?
The main body covers the theoretical pillars of modern finance, the history of behavioural finance, specific cognitive biases like overconfidence and heuristics, and critiques of the field.
Which keywords define this work?
Key terms include behavioural finance, heuristics, loss aversion, market anomalies, prospect theory, and investor psychology.
How does the author explain the persistence of market bubbles?
The author suggests that bubbles are a result of human emotions like fear, greed, and hope, which lead to irrational market behaviour that traditional finance theory cannot fully explain.
Does the author believe that investors can ever be fully rational?
The author remains skeptical, citing an evolutionary perspective that humans lack the mental framework to process modern financial environments with perfect rationality.
- Quote paper
- Annekathrin Meyer (Author), 2003, Behavioural Finance, Munich, GRIN Verlag, https://www.grin.com/document/18413
