Critical Digital Economies introduces creative works that ask questions about our place within the ever-changing digital economy. As we move to a society in which data replaces money as the primary representation of value, we find ourselves entangled in the complex data streams of personal, social and environmental information making it increasingly difficult to know who has power, who is designing the rules, and how we should break them. Pip Thornton's Arcadia screens greet the visitor and mimic an LED stock market ticker that displays the text of Walter Benjamin's Arcades Project as priced by Google's algorithms; whilst the word 'tea' is £1.88, the word 'delight' is £2.06, the word 'art' is priced lower than both at £1.70. Three interactive Smart Seesaws invite the visitor to place money into a series of smart contracts that distribute money according to live global events: If there is an earthquake anywhere in the world within the next minute, your money will pass to an emergency fund; Every time a lifeboat launches in the UK, money will be transferred to the Royal National Life Boat Institution. A series of critical design prototypes sit within cases and are accompanied by videos that portray their use. The KASH Cups are ceramic coffee cups augmented with RFIF tags to give each one a bank account. Credit for coffee can only be added to each cup when two people socialise, turning the cups into social currency. The management of personal data is becoming extremely sensitive to allow individuals to control its use to help their lifestyles, the Co-Creation Prototypes were designed with ‘extreme data users' who all want data services to make their own data work harder for them. Finally, the Gigbliss Hairdryers present a future for distributed energy management in which individuals can buy and sell energy on their hairdryer to make money, or let the machines to the work, helping with finances and saving electricity. The collection of artworks and design prototypes lets visitors understand a little more about the value of data in the digital economy, and encourages them to consider if the use of data corresponds with their own values. Critical Digital Economies features a selection of works from the Institute of Design Informatics, led by Professor Chris Speed which is part of Edinburgh College of Art, University of Edinburgh.