求翻译：摘 要：伴随经济全球化的脚步，中国经济的发展和资本市场的广度和深度都在不断的扩大，市场参与者和投资者对股指期货等金融衍生产品产生了巨大的需求。我国早2010年正式推出了股指期货。本文首先介绍了股指期货的研究背景和意义，套期保值的基本思想和原理。采用沪深300股指期货与50ETF基金的实际交易数据作为现货资产组合，运用OLS模型、ECM模型、GARCH模型分别估计出最优套期保值比率并进行实证研究。是什么意思？

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Summary: With the economic globalization, the pace of China's economic development and capital markets of the breadth and depth are the continuing expansion, market participants and investors in the stock index futures, and other financial derivative products have had a tremendous demand. As early a

Abstract: The concomitance economy globalization footsteps, the Chinese economy development and the capital market breadth and the depth all in the unceasing expansion, the market participant and the investor referred to financial derivation products and so on the stock to the stock to have the huge

Summary: with the pace of economic globalization, China's economic development and the expansion of the breadth and depth of capital markets are constantly, market participants and investors in the stock index futures and financial derivatives have a huge demand. Early 2010 officially launches stock

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