Why risk take?
Risk v Reward relationship - banks must take on and amange risk in order to generate profits
What are the sources of risk taking in banking?
What is the macro level source of risk?
How is it facilitated?
How is it managed?
What is financial risk modelling?
Financial risk modelling is the use of formal econometric (quantitative analysis of actual economic phenomena through empirically derived relationships) techniques to determine the aggregate risk in a portfolio. It is required under Basel II for major international banking institutions.
How does one predict future events?
By using historical data to create probability distributions that help predict the future.
Give examples of probability distributions
Normal & Fat-tailed. One should be careful that they aren’t assuming a normal distribution when it is actually fat-tailed. A certain extreme event may be considered practically impossible in a normal distribution, but possible a fat-tailed distribution.
What is Value at Risk (VaR) and its relation to confidence level?
Value at Risk is a statistical technique used to measure and quantify the level of financial risk within a firm/portfolio over a given time frame.
Typically used confidence levels are 95%, 97.5% and 99%. A 99% CL produces a VaR figure where in normal trading a loss/gain figure will only be exceeded once every 100 days.
What influences how long should a Holding Period be?
The product/asset type derives how long a holding period should be. A position that could be liquidated in one day should have a one-day holding period.
What is the Observation Period?
Data must be gathered with a view to predicting future prices in the observation period. Recent price history usually has the greatest relevance when assessing future prices.
What are the Basel Requirements wrt risk management?
How are modelling approaches applied and what should one be wary of?
Scenario modelling issues include:
What is Earnings at Risk (EAR)? How does it differ to Value at Risk?
EaR assesses the amount the net income may change due to a change in market rates/prices over a specified period. VaR does this with a degree of confidence.
EaR warns of potential earning shortfalls over a range of maturity buckets. Earnings are non-economic and can be easily manipulated.
What is the difference between Regulatory and Economic Capital?
What is the Scorecard Approach?
The scorecard approach is a more qualitative view that can be challenged and supported by real loss data. It:
What are the top 10 risks faced by all businesses?
How does one deal with risk?