Lecture 1-introduction Flashcards
What does traditional finance suggest?
People make rational decisions.
People are unbiased in their predictions about the future.
People are risk averse. They will only take risk if the expected rewards are sufficient.
What is behavioural finance?
People make irrational decisions
Psychology affects people as they make investment decisions
Investment decisions are affected by cognitive errors, psychological biases and emotions
Homo Economicus- Economic man assumptions
Fully comprehends all their consequences
Has unbounded cognitive capacity
Can handle large volumes of information
The value he attaches to different outcomes is not affected by emotions/past experience
-Unbiased forecasts
What is utility?
Utility is a term in economics that refers to the total satisfaction received from consuming a good or service.
Economic theories based on rational choice usually assume that consumers will strive to maximize their utility
What is the expected utility formula?
E[u] = ∑pi * u(xi)
Outcomes and probabilities
What is subjective expected utility
-When outcome probabilities are unknown and subjectively estimated