3 papers
q-fin.MF2026
Equilibrium Investment with Random Risk Aversion: (Non-)uniqueness, Optimality, and Comparative Statics
Weilun Cheng, Zongxia Liang, Sheng Wang +1
This paper studies a continuous-time portfolio selection problem under a general distribution of random risk aversion (RRA). We provide a complete characterization of all determini…
math.OC2025
Portfolio Selection with Costly Information Acquisition
Zongxia Liang, Shu Wang, Jianming Xia
We investigate joint optimization on information acquisition and portfolio selection within a Bayesian adaptive framework. The investor dynamically controls the precision of a priv…
q-fin.MF2025
An Integral Equation in Portfolio Selection with Time-Inconsistent Preferences
Zongxia Liang, Sheng Wang, Jianming Xia
This paper discusses a nonlinear integral equation arising from portfolio selection with a class of time-inconsistent preferences. We propose a unified framework requiring minimal…