Book4 pg69 hedging and basis risk 最后一段提到 a user of natural gas in Florida might purchase gas contracts to hedge the need for gas. However, the available contract specifies the price of gas in Louisiana.
请问hedge是怎么实现的呢,而且这个人没有short position , 只是enter into a long position, 怎么就叫做hedge了呢?另外 basis risk和 cross hedge risk是怎么体现的呢?