Explanation

The question appears to be incomplete in the provided text. It mentions Roy Thomson assessing Markets A and B using a two-factor model, but no actual question, options, or complete scenario is provided.

For a complete analysis, we would need:

• The specific two-factor model equation
• Factor loadings for Markets A and B
• Factor variances and covariances
• The specific question being asked (e.g., about risk, return, correlation, etc.)

Since the question is incomplete, I cannot provide a definitive answer or detailed explanation. This appears to be the beginning of a question about factor models in risk management, but the complete question text is missing.