Answer:
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Answer:
C. A risk averse investor would choose the economy in which stock returns are independent because risk can be diversified away in a large portfolio.
Explanation:
if stock prices move together, (positive correlation), the volatility of the portfolio will be higher. Higher volatility means higher risk. This is the case with the first economy.
In the second economy however, the stocks are independent of each other meaning there is zero correlation between stocks and hence the portfolio volatility will be much lesser.
As a risk-averse investor you will prefer the portfolio with lower volatility for the same expected return.
Answer:
c. 50
Explanation:
Fixed-order-interval inventory model also known as fixed reorder cycle inventory model is used to manage supply of raw material to a business based on demand of the product. Review of inventory is done by inventory analyst at fixed intervals and of inventory level is above a predetermined reorder level, nothing is done.
If however stock is at or below set reorder level raw material is purchased and is based on the formula- Maximum level - Current level.
In the scenario above we use the following formula
Standard deviation of demand over the review and lead-time period(SD)=Square root of { (Lead time+ Number of days between review)* (Standard deviation of daily demand)^2}
SD= √ {(10+15)*(10)^2}
SD= √ (25* 100)
SD= √2,500
SD= 50
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