Overseas residency rights of Chinese listed firms' controllers: Impacts on R&D and public welfare donations.

By developing an intertemporal decision-making model, this paper investigates the impact of the acquisition of overseas residency by a firm's beneficial owner on the firm's intertemporal decision-making. By incorporating a discount rate in the model, the paper finds that obtaining foreign residency alters the temporal distributional characteristics of the utility of the beneficial owner, weakening its preference for intertemporal investment behaviors such as R&D and donations. We then conduct an empirical analysis using the propensity score matching method for Chinese listed firms.

Case Report: Endoluminal removal of a conical retrievable superior vena cava filter with a retraction hook attached to the wall.

We report the case of a 22-year-old male who underwent endoluminal surgery and was implanted an Option Elite filter in the superior vena cava (SVC) while the filter retraction hook was attached to the vessel wall. The patient requested to remove the filter after 155 days. Preoperative ultrasonography and CT examination revealed that the filter retraction hook was very likely to penetrate the SVC wall and its tip was very close to the right pulmonary artery.