Your equity portfolio has a beta of 1.5. The risk-free rate is 2% and the market expects an 8% return. What is your expected return? If your PM wants to reduce the portfolio beta to exactly 1.0, how would you adjust the cash position?

你的股票组合Beta是1.5。无风险利率是2%，市场预期收益率是8%。你的预期收益率是多少？如果基金经理想把组合Beta降到正好1.0，你会怎么调整现金仓位？