Professor Çelen teaches the core course Managerial Economics. His main research focus is on game theory, microeconomic theory, and experimental economics. In his recent work he provides an information-based explanation for uniform of social behavior, which is often refereed to as herd behavior or information cascades. He also works on positive and normative implications of different interest arbitration procedures. Çelen is the winner of the Crowell Memorial Prize Paper Competition and research associate at the C.E.S.S.