The document is a presentation about designing virtual markets for fun and profit given by Christina Hsu of GigaMedia at the 2013 Game Developers Conference. It discusses strategies for creating virtual economies in games and monetizing them. Contact information is provided for Christina Hsu, including links to her Facebook and other social media profiles under the names Christina Hsu, Chris_9801, and Chris_9801 (奴貓 Chris 鍋貼).