除了多元化外，指数基金还具有低费用的好处，因为他们是被动式管理，这意味着它们不依赖于人来研究和选择股票。
Aside from being diversified, index funds carry the added benefit of having low fees since they're passively managed, which means they don't rely on a person to research and select stocks.
其余的，多份研究表明，则各有千秋，从家族公司(许多管理差劲)到运行良好的表现出众者(其中有些由私募基金进行监管)。
As for the rest, studies show a wide spectrum running from family firms, many of them poorly managed, to well-run high-performers, some of them kept to the mark by private-equity funds.
银行、基金管理机构和研究机构都用该套件来分析市场数据和测试交易策略。
Banks, funds and research institutions have used it to analyze market data, and test trading strategies.
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