Sidney Winter is an influential American economist known for his work in the fields of innovation and industrial organization. He is particularly recognized for his contributions to the understanding of how firms innovate and compete in markets. His research often emphasizes the importance of technology and knowledge in driving economic growth. Winter is also a co-founder of the EvoDevo approach in economics, which applies concepts from evolutionary biology to understand economic processes. His work has significantly impacted the study of business strategy and economic theory, making him a key figure in the development of modern economic thought.