This document discusses a paper on fixed investment, uncertainty, and financial market volatility in Japan. The discussant provides strengths of the paper, including an interesting topic and novel methodology. Several suggestions are also provided, such as conducting sensitivity analysis to check if results are prior-driven, addressing model uncertainty using Bayesian model averaging, and explaining some interesting results like the inverse relationship found between investment and confidence. Overall the discussant views it as a novel approach but suggests additional analysis could strengthen the findings.