Discover and read the best of Twitter Threads about #discretization
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The LTCM Crisis taught #Quants one thing in common.
Never trust the risk pricing/hedging models blindly.
The Black Scholes option model assumptions and the Value at Risk Metric both failed miserably.
The liquidity assumptions of the #VaR Model provided a false sense of security.
Never trust the risk pricing/hedging models blindly.
The Black Scholes option model assumptions and the Value at Risk Metric both failed miserably.
The liquidity assumptions of the #VaR Model provided a false sense of security.
The most worrying thing is that if #LTCM which was a hedge fund managed by two @NobelPrize winners in Economics could not get things right, then what should one expect from humble risk practitioners like myself!?
imagine the amount of risk that is concealed by Black Box Models.
imagine the amount of risk that is concealed by Black Box Models.
Always backtest and stress test your #risk models.
Not just the mathematical components, but also the semantics, the #hermeneutics, the syntax that is used for coding the automata, and the symbols which are shown on the analytical dashboard.
It is a big #CON industry at work!
Not just the mathematical components, but also the semantics, the #hermeneutics, the syntax that is used for coding the automata, and the symbols which are shown on the analytical dashboard.
It is a big #CON industry at work!
