In the context of portfolio management, credit risk management is vital for safeguarding investment portfolios against potential defaults by borrowers. You are tasked with developing a comprehensive credit risk management strategy for a fictitious investment firm, InvestWell, which manages a diversified portfolio comprising corporate bonds, mortgage-backed securities, and a small allocation to high-yield (junk) bonds. InvestWell has recently faced increased volatility in the credit markets, characterized by rising interest rates and declining credit ratings among some key sectors.
Your prompt is to articulate the following:
Be sure to use relevant theories, models, or frameworks to support your analysis.