David Alan Easley (born 1950s) is an American economist. Easley is the Henry Scarborough Professor of Social Science and is a professor of information science at Cornell University. He was previously an overseas fellow of Churchill College at Cambridge University. His research is in the field of economics, finance and decision theory. In economics, he focuses on learning, wealth dynamics and natural selection in markets. In finance, his work focuses on market microstructure and asset pricing. In decision theory, he works on modeling decision making in complex environments. In networks, he works on network formation and trading networks with colleagues in the computer science department at Cornell.