Limitation of LDA

Hi David,

Could you point out what are the major limitation of LDA.
I can understand the major limitation would >>

Estimating the dependencies between cells. Could you also briefly explain which copula function they use.
Generating Tail Losses

How it can be improved to capture the impact of Market & Credit risk on firm.
As I see the Operational risk increases (Some Correlation) with your Market & Credit Risk. How LDA can be improved to capture such granularity which Basel don't want to do but still for understanding.


Regards,
Rahul
 
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