我的英语不够好: there is no other choice, read the English textbooks and improve your English. You'd better read both Gujarati and Wooldridge, especially some later chapters in Gujarati about serial correlation and heteroscedasticity. The difference between Wooldridge and Gujarati is that Gu.. provide more graphical exmaples than Wooldridge does, which is especially helpful for beginners. Otherwise, Wooldridge is better overall.
[此贴子已经被作者于2006-4-26 1:26:02编辑过]