Llorente Erviti, LoretoAizpurua Agirre, José María2016-05-102016-05-102006https://academica-e.unavarra.es/handle/2454/20649In pelota matches, bets are made between viewers through a middleman who receives 16% of the finally paid amount. In this paper a description of the way bets are made and an explanation of the existence of those markets is presented. Taking betting markets as a simplified analogy for financial markets we have searched for the explanation in a world where both sides of the market are not different in believes and preferences. Taking observations from actually made bets a preliminary analysis about the biases of those markets is presented.23 p.application/pdfengCC Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)Documento de trabajo / Lan gaiakAcceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess