黄金为什么保值？这个问题的答案涉及到多个方面，以下是对这个问题的解析以及英文翻译对照：

首先，黄金是一种普遍认可的贵金属，其价值被全球广泛接受。无论是在国内还是国际市场，黄金的价值一直都很高，而且其价格波动相对较小，这使得黄金成为一种相对稳定的投资工具。英文翻译为：Why does gold appreciate in value? The answer to this question involves multiple aspects. Firstly, gold is a universally recognized precious metal whose value is widely accepted globally. Whether in domestic or international markets, the value of gold remains high, and its price fluctuations are relatively small, making it a relatively stable investment vehicle.

其次，黄金的供应相对有限，而需求却不断增加。随着全球经济的发展和人们生活水平的提高，人们对黄金的需求越来越大。由于黄金的供应有限，而需求不断增加，这使得黄金的价格不断上涨，从而保值增值。英文翻译为：Secondly, the supply of gold is relatively limited, while demand continues to increase. With the development of the global economy and the improvement of people's living standards, people's demand for gold is constantly increasing. As the supply of gold is limited, but demand continues to rise, this drives up the price of gold, thereby maintaining its value.

最后，黄金可以作为避险资产，对冲市场风险。在全球经济不确定性的情况下，黄金通常被视为一种相对稳定的投资工具。投资者购买黄金可以规避资产贬值的风险，同时也可以在通货膨胀的情况下保护自己的购买力。英文翻译为：Finally, gold can serve as a safe haven asset that hedges against market risks. In the face of global economic uncertainty, gold is often regarded as a relatively stable investment vehicle. Investors can purchase gold to avoid the risk of asset depreciation and also protect their purchasing power against inflation.