问题如下：
Zhou is a portfolio manager for an Investment management company，Johnson is an analyst at the company and reports to Zhou. Zhou has a portfolio of $20 million, most of which is invested in public equity. Zhou tell Johnson that he want to create a multi-asset portfolio by selling part of his equity holdings and investing the proceeds in another asset class. And Zhou states that asset allocation should achieve the two goals：risk diversification and capital growth.Johnson suggests the following three asset classes:
· Public real estate
· Private real assets (timber)
· Equity long/short hedge funds
Determine which asset class is most likely to meet Zhou’s investment objective. Justify your response.
选项：
解释：
Johnson should recommend Private real assets (timber) as most suitable for zhou.
• Timber exhibits a low correlation with public equities and can fulfill the functional role of risk diversification.
• Timber provides high long-term returns and can fulfill the functional role of capital growth.
• 木材与公共股票的相关性较低，可以发挥分散风险的功能。
• 木材提供高长期回报，并能发挥资本增值的功能作用。
私人实物资产（木材）是最有可能实现 zhou 目标的资产类别。私人实物资产，例如木材，往往与公开股票的相关性较低，因此在 zhou 当前的全股票投资组合中，很有可能发挥分散风险的功能作用。此外，木材在实现投资组合中资本增长的功能作用方面具有很高的潜力，因为增长是由树木的潜在生物生长以及潜在土地价值的升值提供的。
与木材相比，作为资产类别的公共房地产可能提供较少的资本增长机会和较低的多元化收益。毕竟作为public，和二级市场的股票就有一些相似性，都是public，此外Public real estate升值潜力不大。此外，作为资产类别的Equity long/short hedge funds将在zhou 的全股票投资组合中提供适度的风险分散，但不具有显着的资本增长潜力。因为Equity long/short hedge funds的β很小，虽然volatility小了，收益也下降了。
老师，Equity long/short hedge funds和equity不会有比较强的相关些，以致无法更好分散化吗？
