2 papers
math.OC2026
Newsvendor under Ambiguity and Misspecification
Feng Liu, Zhi Chen, Ruodu Wang +1
Problem definition: We consider a newsvendor problem with unknown demand distribution, where we distinguish ambiguity under which the newsvendor does not differentiate demand distr…
econ.TH2026
Diversification Preferences and Risk Attitudes
Xiangxin He, Fangda Liu, Ruodu Wang
Portfolio diversification is a cornerstone of modern finance, while risk aversion is central to decision theory; both concepts are long-standing and foundational. We investigate th…