OxTalks will soon move to the new Halo platform and will become 'Oxford Events.' There will be a need for an OxTalks freeze. This was previously planned for Friday 14th November – a new date will be shared as soon as it is available (full details will be available on the Staff Gateway).
In the meantime, the OxTalks site will remain active and events will continue to be published.
If staff have any questions about the Oxford Events launch, please contact halo@digital.ox.ac.uk
We refine sequential equilibrium in signaling games by incorporating natural language in the form of meaningful cheap talk directly into the theory. Because literal meaning can be overridden by equilibrium usage, the import of natural language in games must stem in part from conventions about how literal meaning interacts with off-path beliefs. Our main result shows that a simple and intuitive convention together with a rich language has surprising refinement power, eliminating all equilibria except those that are stable in the sense of Kohlberg and Mertens (1986). Moreover, even with a very coarse language, the same convention eliminates, in particular, all equilibria that fail to satisfy Cho and Kreps’ (1987) never a weak best reply criterion.
