【中文版】

风险调整系数是指投资者在进行投资决策时，考虑到投资风险对投资收益的影响而设置的一个调整系数。它是投资者在衡量风险与收益之间的关系时所使用的一个重要工具。

风险调整系数是根据投资品种、市场环境、投资者风险偏好等因素来确定的，它的大小直接影响到投资者对投资收益的要求。一般来说，风险调整系数越大，投资者对投资收益的要求越高；反之，风险调整系数越小，投资者对投资收益的要求就越低。

在投资组合中，风险调整系数的作用是帮助投资者对不同投资品种的收益和风险进行比较和评估，以便更好地实现投资目标。例如，如果一个投资者同时投资了股票和债券两种资产，由于股票的风险相对较高，投资者可以通过设置一个较大的风险调整系数来要求更高的收益，以补偿所承担的风险。

总之，风险调整系数是投资者在进行投资决策时的一个重要工具，它可以帮助投资者更好地衡量风险与收益之间的关系，从而做出更加明智的投资决策。

【英文版】

What is the risk adjustment coefficient?

The risk adjustment coefficient refers to an adjustment coefficient set by investors in their investment decisions to take into account the impact of investment risks on investment returns. It is an important tool used by investors to measure the relationship between risk and return.

The risk adjustment coefficient is determined based on factors such as the investment type, market environment, and investor risk preferences. Its size directly affects investors' requirements for investment returns. Generally speaking, the larger the risk adjustment coefficient, the higher the investor's requirements for investment returns; conversely, the smaller the risk adjustment coefficient, the lower the investor's requirements for investment returns.

In investment portfolios, the role of the risk adjustment coefficient is to help investors compare and evaluate the returns and risks of different investment types in order to better achieve their investment goals. For example, if an investor invests in two assets: stocks and bonds, because the risk of stocks is relatively high, investors can set a larger risk adjustment coefficient to require higher returns to compensate for the risk undertaken.

In summary, the risk adjustment coefficient is an important tool for investors in making investment decisions. It helps investors better measure the relationship between risk and return, and thereby make more informed investment decisions.