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econ.TH2026
The Set of Correlated Equilibrium Payoffs for a Fixed Information Structure Need Not Be Closed
Michael Greinecker, Patrick Lahr, Christoph Schwerdtfeger
Aumann (1974) showed that an atomless public randomization device makes the feasible- and equilibrium-payoff sets of a game with a fixed information structure convex, and asked whe…
econ.TH2026
1-out-of-5 Maximin-Share Allocations Always Exist for Four Agents
Christoph Schwerdtfeger
For four agents with nonnegative additive valuations, a complete 1-out-of-5 maximin-share allocation always exists, improving the previous 1-out-of-6 guarantee. Together with known…