Cognitive Biases and Decision Making — Glossary · Professional ..

Billy Odell Tucker-Robinson Founder & Host — Banking With Billy Network • Intelligence Network • Data Science • AI Research • World News
Published: 2026-09-20T15:55:43.226Z • Permanent link

Pioneering research by cognitive psychologist Dr. Daniel Kahneman and economist Dr. Amos Tversky in the 1970s laid the groundwork for our current understanding of cognitive biases and their impact on decision-making. Their seminal paper, "Prospect Theory: An Analysis of Decision under Risk," published in Econometrica in 1979, introduced the concept of loss aversion and the framing effect. Loss aversion suggests that individuals tend to fear losses more than they value gains, while the framing effect demonstrates how the way information is presented can significantly influence decision-making outcomes.

Fast forward to 2019, when a team of researchers from the University of California, Los Angeles (UCLA), published a study that shed light on the cognitive biases that affect investment decisions. The study, which analyzed the behavior of over 1,000 investors, found that cognitive biases such as confirmation bias, anchoring bias, and availability heuristic played a significant role in shaping investment choices. The researchers discovered that investors who were more aware of these biases were better equipped to make informed decisions.

Recent data from the financial services firm, Charles Schwab, reveals that cognitive biases continue to impact investment decisions. According to the data, 70% of investors reported that they are influenced by emotions when making investment decisions, while 60% stated that they rely on intuition rather than data-driven analysis. These findings highlight the need for investors to be aware of their own cognitive biases and to develop strategies that mitigate their impact.

Cognitive biases and decision-making have significant implications for the social and behavioral domain, particularly in the realm of finance. Companies such as Fidelity Investments and Charles Schwab are already taking steps to address the issue by providing investors with tools and resources to recognize and manage cognitive biases. For instance, Fidelity's "Thinking Ahead" program offers investors a framework to develop a more objective and data-driven approach to decision-making.

Research communities are also beginning to recognize the importance of cognitive biases in decision-making. A 2020 survey of financial professionals conducted by the Securities and Exchange Commission (SEC) found that 80% of respondents believed that cognitive biases played a significant role in shaping investment decisions. The survey also revealed that investors who were more aware of their own cognitive biases were more likely to report higher levels of confidence in their investment decisions.

The impact of cognitive biases on decision-making is not a new phenomenon. Throughout history, philosophers and economists have grappled with the issue of human rationality and its limitations. Aristotle's concept of "hylomorphism" – the idea that human beings are composed of matter and form – laid the groundwork for modern philosophical debates about human cognition. In the 20th century, psychologists such as Jean Piaget and Lev Vygotsky developed theories about cognitive development and the role of social context in shaping human cognition.