Prediction markets are futures markets where traders buy and sell contracts with values dependent on uncertain future events. The University of Iowa is home to the Iowa Electronic Markets, the first established prediction markets. Vahid’s dissertation studies decision biases in the context of prediction markets. Firstly, he develops a model to detect markets’ plausible misestimation biases. Second, using Natural Language Processing, he analyzes people’s emotional words usage when justifying political actions toward a status quo