Published online by Cambridge University Press: 12 January 2021
This note re-investigates the smooth tests for the equality of distributions introduced by Bera et al. (2013, Econometric Theory 29, 419–446) and provides a modified smooth test which works for the general case with two sample sizes m and n. Asymptotic properties of the proposed test statistic under both the null and the alternative hypothesis are studied.
We thank two referees, Yoon-Jae Whang (the Co-Editor), Peter Phillips, Norbert Henze, Anil Bera, Aurobindo Ghosh, and Tong Yang for their very helpful comments. Song acknowledges the financial support from China's National Key Research Special Program Grants 2016YFC0207705, the National Natural Science Foundation of China (Grant No. 71532001, 71973005), and Key Laboratory of Mathematical Economics and Quantitative Finance (Peking University), Ministry of Education, China.