Indonesian Living Standards Before and After the Financial Crisis (with Kathleen Beegle, Agus Dwiyanto, Yulia Herawati, Daan Pattinasarany, Elan Satriawan, Bondan Sikoki, Sukamdi and Firman Witoelar).

• 他在计量经济学模型主要类别的可识别性方面及对解决变量内生性的问题上发表了一系列有影响的论文。