Two different fractal regression methodologies were employed with the aim of understanding the relationship between prices of ethanol produced in the USA and Brazil, the most important producers of ethanol. These methodologies, which have the advantage of giving us information about the relationships between different timescales, could also provide interesting and important information about this particular market. Our results suggest, first, some differences in the basic price in these markets, and second, a positive relationship between prices (as expected) but not a one-to-one relationship. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

中文翻译：

---

美国和巴西乙醇价格之间的关系：基于分形回归的新证据

为了了解美国和巴西这两个最重要的乙醇生产国生产的乙醇价格之间的关系，我们采用了两种不同的分形回归方法。这些方法具有为我们提供有关不同时间尺度之间关系的信息的优势，也可以提供有关该特定市场的有趣且重要的信息。我们的结果表明，首先，这些市场的基本价格存在一些差异，其次，价格之间存在正相关关系（如预期），但不是一对一的关系。© 2021 化学工业协会和 John Wiley & Sons, Ltd