In April 24, 2019, Dr. Ryota Nakamura (Associate Professor, Hitotsubashi Institute for Advanced Study) and Dr. Ying Yao (HIAS Postdoctoral Researcher, Hitotsubashi Institute for Advanced Study) were invited to give a seminar at Graduate School of Public Health, Seoul National University, Korea. They gave a presentation titled "Impact of choice set on tobacco consumption: Evidence from a natural experiment" that followed by an active discussion with participants of the seminar. |  |