摘要
天气衍生品定价精度依赖于天气预测模型的合理构建。文章以气温衍生产品为例,首次利用AR-GARCH模型实现对O-U均值回复模型拓展,解决了气温波动项的自相关与异方差问题,再以上海日平均气温为样本数据,对拓展后模型进行参数估计和准确度检验,发现残差结果更接近标准正态分布假设。研究结果表明拓展后模型可以优化O-U模型在气温衍生品定价中的应用性和精确性。
引文
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