Explanation:
The first line of defense in the three lines of defense model in model risk management is responsible for generating the risk to which the organization is exposed. This line of defense is primarily composed of model developers and model owners. They are the ones who create and own the risk, and hence, they are in the best position to manage and mitigate it.
The first-line QA/QC teams play a pivotal role in mitigating model risk, especially execution risk. They ensure that models are developed and implemented according to best practices. By doing so, they help in reducing the likelihood of errors and inaccuracies in the models, which can lead to significant financial losses, reputational damage, or regulatory penalties.
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Q.5151 What is the role of the first line of defense in the three lines of defense model in model risk management, and how do first-line QA/QC teams help mitigate model risk?
A
The first line of defense is responsible for independently assessing the risk and risk management practices of the second line, while the first-line QA/QC teams monitor the performance of models.
B
The first line of defense abdicates its own responsibilities to the second line, while the first-line QA/QC teams ensure models are validated at the appropriate frequency.
C
The first line of defense generates the risk to which the organization is exposed and owns the risk. The first-line QA/QC teams play a pivotal role in mitigating model risk, especially execution risk.
D
The first line of defense is responsible for validating models, while the first-line QA/QC teams conduct comprehensive backtesting.