Lecture 2 - History of Economic Psychology

A Little History of Economic Psychology

  • By Marcel Zeelenberg

Understanding Economic Psychology

  • Dynamic Field: Economics is fundamentally a behavioral science.

  • Goals:

    • Develop understanding of economic theory.

    • Foster an economic perspective on everyday behavior.

    • Identify limitations and failures of economic theory.

    • Explore alternative approaches to analyze economic behavior.

    • Discover methods to assist individuals in making better choices.

Key Concepts in Economic Psychology

  • Rationality:

    • Meaning of rational behavior and decision-making processes.

    • Normative theories indicate how decisions should be made (prescriptive).

    • Descriptive theories show how decisions are actually made.

Psychological Principles Influencing Decisions

  1. Many choices are automatic:

    • Individuals often lack conscious awareness of their wants.

  2. People are social animals:

    • They consider not only what they possess but also others' possessions.

  3. Influence of mental models:

    • Objective truths can sometimes be absent; mental models shape decisions.

  4. Inertia in behavior:

    • People show resistance to change and fail to optimize choices.

  5. Small behavioral changes can lead to significant results:

  • These effects are often unpredictable.

Economic Theories in History

  • Adam Smith (1723-1790):

    • Scholarship: "Wealth of Nations" (1776) solidified his reputation as the father of modern economics.

    • Established concepts such as Rational Economic Man, self-interest, and the Invisible Hand of the market.

Principles from Wealth of Nations (1776)

  • Self-Interest Motivates Actions:

    • "It is not from the benevolence of the butcher... that we expect our dinner, but from their regard to their own interest."

  • On Individual Efforts:

    • Individuals tend to seek the most beneficial use of their resources, ultimately benefiting society as well.

The Moral Sentiments (1759)

  • Moral Considerations: Smith explored moral philosophy, emphasizing the importance of social relationships in ethical behavior.

    • He proposed that sympathy for others influences decision-making.

Empathy-Induced Altruism

  • Examined by various thinkers, including Adam Smith and later psychologists like Dennis Krebs and Martin Hoffman, identifying links between empathy and altruism.

Historical Evolution of Economics and Psychology

  • Early integration of psychology into economics focused on decision-making models.

  • Heuristics and Biases: Tversky and Kahneman's work revealed systematic biases in decision-making:

    • Individuals often rely on simple cognitive shortcuts.

Key Figures and Theories

  • Blaise Pascal: Expected Value theory, integrating gain likelihood and value assessment.

  • Daniel Kahneman: Co-researcher on cognitive biases, emphasizing heuristics in economic decision-making.

Behavioral Economics

  • Represents an ongoing effort to merge psychological insights with economic models to enhance predictive accuracy in economic behavior.

  • Addresses fundamental economic assumptions like stable preferences, self-interest, and rationality.

Conclusion

  • Economic psychology examines how psychological factors shape economic decisions, aiming for better predictions and understanding of behaviors in various economic contexts.

  • The interplay of economics and psychology continues to evolve, enhancing the frameworks through which both disciplines can inform each other.