The effect of visual openness in meeting rooms on team productivity and communication quality: evidence from a randomized controlled trial / Shinsuke Asakawa (Saga University), Akinori Shimono (COMANY INC), Mikiko Takahashi (COMANY INC), Shoko Yamane (The Papalaka Research Institute, Ltd. and The University of Osaka), Masaru Sasaki (The University of Osaka and IZA) ; IZA Institute of Labor Economics