Left-Digit Bias, Quality Choice, and Channel Coordination

The authors thank Prof. Greg Shaffer, the anonymous associate editor, and the anonymous reviewers for their constructive comments, which significantly improved the paper. The authors also thank Avner Strulov-Shlain, Sridhar Moorthy, Haitao (Tony) Cui, Qiao-Chu He, Xi Li, Stefanus Jasin, and Yaozhong Wu as well as seminar participants at University of Science and Technology of China, the University of Toronto, and the University of Hong Kong for useful feedback. Zemin (Zachary) Zhong acknowledges the hospitality of the City University of Hong Kong, where part of this work was conducted during his 2025–2026 sabbatical. Both authors contributed equally to the manuscript and are listed in alphabetical order. The standard disclaimer applies.