Yang, Zhenlin and Tse, Yiu Kuen Generalized LM tests for functional form and heteroscedasticity 2008 - 2008 - 349-376 V. 11 Issue. 2 Subjects--Topical Terms: Econometrics Subjects--Index Terms: Box Cox transformation;Double length regression;Functional form Heteroscedasticity;LM tests;Robustness;