5.2 Defining risk Flashcards
Define risk.
Any situation where an action or decision could result in more than one potential outcome.
What is the difference between risk and uncertainty?
Uncertainty is not quantifiable, whereas risk is.
What is the “Knightian uncertainty concept”?
The concept developed by Frank Knight that uncertainty is not quantifiable due to unpredictability, but that risk can be estimated using statistical methods.
The degree of uncertainty in a decision with often depend on:
- the chosen risk model and underlying a__________
- availability and quality of d___
- the chosen model p_________ such as time horizon or frequency of data inputs
- the chosen c__________ level
assumptions
data
parameters
confidence
A common factor in uncertainty is the human element. What do we mean by this?
Human behaviour is very unpredictable, making it hard to determine how people will react to specific decisions or outcomes.
What is a “confidence interval” in determining uncertainty in a particular risk?
A percentage value referring to the extent to which we are confident in the accuracy of any statistical estimate.
What is meant by a “risk event”?
The outcome that arises from a single decision or action that could result in more than one outcome.
What is meant by a “loss event”?
A risk event with a negative outcome (e.g. injury, financial loss).
What is meant by probability in terms of risk?
The likelihood that a give outcome will occur.
What is meant by impact in terms of risk?
The scale of a particular positive or negative outcome. e.g. minor, severe, critical, fundamental etc.
What is meant by exposure in terms of risk?
Exposure is a measure of probably future outcome resulting from a single decision or action.
What is meant by time horizon?
The time period over which risk is analysed.
How is risk exposure calculated in its simplest form?
Exposure = probability x impact
What is the difference between a “pure” risk and a “speculative” risk?
Pure risks are risks with only a negative or neutral outcome, while speculative risks also have a positive element.
What is the difference between “inherent” and “residual” risk?
Inherent risk is the level of risk exposure before controls are applied, while residual risk is the level of risk exposure with controls in place.