Shanghai University of International Business and Economics

Social presence matters: unveiling the impact on knowledge hiding in enterprise social media collaboration

Purpose This study investigates how enterprise social media (ESM) design can mitigate knowledge hiding by enhancing social presence, particularly through cognitive and affective dimensions, and explores the mediating role of emotional empathy in this process. Design/methodology/a...

Underwater image enhancement via boundary-aware gradient domain reconstruction and intuitionistic fuzzy set similarity measure-guided wavelet fusion for lowlight conditions

Due to the light absorption and scattering effects of water in dark underwater environments, along with the sensitivity limitations of imaging devices, captured images generally suffer from color distortion, low contrast, blurred details, and uneven illumination. These issues sev...

Efficient estimation in a semiparametric longitudinal data model with unknown time-varying AR error structure

We explore a time-dependent auto-regressive error structure to model the within-subject dependence among longitudinal observations in partially linear varying coefficient model, where the auto-regressive order is completely unspecified. We propose a two-stage unified least square...

Spurious State Dependence, True State Dependence and the Fear of Floating

ABSTRACT To better understand the Fear of Floating phenomenon in exchange rate regime evolution, this paper advances the method to identify state dependence and establishes four new findings and explanations. First, the introduction of state dependence into multinomial discrete c...

The impact of local government debt on leverage adjustment speed: evidence from a quasi-natural experiment of local governmental debt governance reform

Purpose This study takes China’s 2014 local government debt governance reform as a quasi-natural experiment. It aims to examine how the reform affects corporate leverage adjustment speed, and explores whether it eases the structural imbalance of corporate debt between state-owned...

Dynamic asymptotic dimension growth for group actions and groupoids

We introduce the notion of dynamic asymptotic dimension growth for actions of discrete groups on compact spaces, and more generally for locally compact étale groupoids. Moreover, we demonstrate that the asymptotic dimension growth for a discrete metric space of bounded geometry i...

Agenda setting in mutual fund markets: news, social media, and fund marketing in China

We analyze the effects of social attention on investment behavior. Using an original dataset covering 3,782 funds and over 240,000 news articles, we show that media attention, separated into traditional news media and social media, is associated with greater fund visibility and n...