Cars Hommes is one of the pioneers in complexity economics. His work on nonlinear complex economic systems challenges the traditional neoclassical paradigm of the representative rational agent in economics. In a rational world the economy is characterized by an average agent (consumer, producer, investor, etc.), who is a perfect optimizer with rational expectations about the future. Hommes' work develops an alternative complexity paradigm based on agent-based behavioral complexity models.He has published more than 100 articles in leading international journals and book chapters and he is the author and editor of four books. He has been Editor of the Journal of Economic Dynamics and Control (2002-2012) and is the president elect of the international Society of Computational Economics.