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. | ![300x200_triming_DSC_0036](http://health-economics.hias.hit-u.ac.jp/wp-content/uploads/2019/05/300x200_triming_DSC_0036.jpg) |