no code implementations • 30 Mar 2024 • Shosei Sakaguchi
Many public policies and medical interventions involve dynamics in their treatment assignments, where treatments are sequentially assigned to the same individuals across multiple stages, and the effect of treatment at each stage is usually heterogeneous with respect to the history of prior treatments and associated characteristics.
no code implementations • 4 Oct 2022 • Tomoya Mori, Jonathan Newton, Shosei Sakaguchi
Considering collaborative patent development, we provide micro-level evidence for innovation through exchanges of differentiated knowledge.
no code implementations • 18 Dec 2021 • Takanori Ida, Takunori Ishihara, Koichiro Ito, Daido Kido, Toru Kitagawa, Shosei Sakaguchi, Shusaku Sasaki
Our estimates confirm that the estimated assignment policy optimally allocates individuals to be treated, untreated, or choose themselves based on the relative merits of paternalistic assignments and autonomous choice for individuals types.
no code implementations • 2 Jul 2021 • Shosei Sakaguchi
In this setting, we develop bounds on the regression parameters and the transformation function, which are characterized by conditional moment inequalities involving U-statistics.
no code implementations • 24 Jun 2021 • Toru Kitagawa, Shosei Sakaguchi, Aleksey Tetenov
Consistency of the surrogate loss approaches studied in Zhang (2004) and Bartlett et al. (2006) crucially relies on the assumption of correct specification, meaning that the specified set of classifiers is rich enough to contain a first-best classifier.
no code implementations • 9 Jun 2021 • Shosei Sakaguchi
This paper proposes an empirical welfare maximization approach in a dynamic framework.