Experimental Design
We divide participants randomly into two groups. One group is asked questions about Harry Potter universe. The second group is asked question about twilight book series. Then, the participants are asked to fill out a survey questionnaire. The first part of the questionnaire is composed of some statements, and the participants are asked to indicate to what extent they agree/disagree with each of the statements using a 5-point Likert scale: “completely disagree” “somewhat disagree,” “undecided,” “somewhat agree,” and “completely agree.” The statements touch various economic issues including banks and bankers, monetary economics, political economy, industrial organization and market structure, inequality, social mobility, human capital, and economic growth. In the last part of the questionnaire, we ask socio-demographic questions, which serve as controls. We also ask the participants questions about the number of Harry Potter books they have read (0–7), the number of Harry Potter movies they have seen (0–8), the number of another popular book series they have read, the number of the books' movie adaptations they have seen, and the average number of books they read in a typical year.