3 papers
econ.TH2026
A Note on Market Segmentation and Bertrand Competition
Zhang Xu, Mingsheng Zhang, Wei Zhao
In this note, we show that equilibrium profit is zero in Bertrand competition with a finite number of firms and consumers whose willingness to pay are bounded, under any market seg…
econ.TH2025
Privacy-Constrained Signals
Zhang Xu, Wei Zhao
This paper provides a unified approach to characterize the set of all feasible signals subject to privacy constraints. The Blackwell frontier of feasible signals can be decomposed…
econ.TH2025
Privacy Structure and Blackwell Frontier
Zhang Xu, Wei Zhao
This paper characterizes the set of feasible posterior distributions subject to graph-based inferential privacy constraint, including both differential and inferential privacy. Thi…