Last updated: 17/08/2025 09:46
The questions are based on or inspired by the following references:
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📘 Part 1 (until Midterm)
Answer the following questions based on the discussions in class.
Q1.
✅ Correct: C. This statement correctly captures the historical risk-return tradeoff, where higher risk (volatility) is associated with higher expected return over long horizons.
Q2.
✅ Correct: C. The primary reason standard deviation is often preferred for interpretation is that its units (e.g., %) are the same as the return itself, unlike variance, which is in squared units.
Q3.
✅ Correct: B. Changes in the interest rate affect the cost of capital and valuations for nearly all companies in the market, making it a systematic risk.
Q4.
✅ Correct: D. This is the precise definition of beta: it quantifies how much of a stock’s risk is due to broad market factors that cannot be diversified away.
Q5.
✅ Correct: C. The total realized return is the sum of income received from dividends (dividend yield) and the appreciation in the asset’s price (capital gain rate).
Q6.
✅ Correct: C. This is the core principle of diversification. Positive and negative events affecting individual companies (unsystematic risk) tend to cancel each other out in a large portfolio, leaving only the systematic risk that affects all firms.
Q7.
✅ Correct: C. For an investor who already holds a diversified portfolio, the relevant risk of a new stock is its contribution to the portfolio’s risk (its systematic risk), not its total risk. Standard deviation includes diversifiable risk, which is irrelevant in this context.
Q8.
✅ Correct: E. A beta of less than 1 indicates that the stock is, on average, less sensitive to market movements. A beta of 0.7 suggests that for every 1% move in the market, the stock tends to move 0.7% in the same direction.
Q9.
✅ Correct: D. A wider confidence interval is caused by a larger standard error, which in turn is caused by higher historical volatility or fewer data points. This indicates that our estimate of the average return is less precise, reflecting greater uncertainty about the true underlying expected return.
Q10.
✅ Correct: B. The fundamental logic is that the market does not reward investors for bearing a risk that they can eliminate on their own. Since unsystematic risk can be diversified away, there is no premium associated with it.