Essays on two-dimensional signaling games

This dissertation studies various two-dimensional signaling games. It introduces and uses equilibrium refinements to analyze such games. In Chapters 2 and 3 of the dissertation, (one-sender) two-audience costly signaling games are studied. Chapter 2 introduces two equilibrium refinements for a class of two-audience private signaling games. Chapter 3 studies a costly gift-giving game with two audiences and investigates how observability of gifts affects pro-social behavior. Chapter 4 studies a costly persuasion game with uncertain intentions of the sender and investigates how truthful information sharing is affected by the intentions of the sender.