A new research area : disequilibrium sports economics -- pt. I. Economic disequilibrium and competitive imbalance -- An attempt at disequilibrium modelling a team sports league -- Management reference points for sporting leagues : simulating league expansion and the effect of alternative player drafting regulations -- The metrics of competitive imbalance -- Disequilibrium on the sports programmes market : the gender imbalance in TV coverage and TV viewership of the 2012 Olympic Games -- pt. II. Teams and leagues with soft budget constraints -- Soft budget constraints in European and US leagues : similarities and differences -- Governance of professional team sports clubs : agency problem and soft budget constraint -- Regulation in leagues with clubs' soft budget constraints : the effect of the new UEFA Club Licensing and Financial Fair Play Regulations on managerial incentives and suspense.