ESA:
The Economic Science Association (ESA) is a professional organization devoted to economics as an observational science, using controlled experiments to learn about economic behavior. The ESA welcomes participation by economists interested in the results of such experiments, as well as scholars in psychology, business, political science, and other related fields.
What is experimental economics?
Experimental methods allow us to control economic institutions, information, policies, and other important variables, both in the laboratory and in the field. Laboratory techniques also make it possible for us to observe and control variables that would not be observable in the field, such as the preferences of buyers and the costs of sellers in the trading of an artificial good.
Experiments have provided important information about economic behavior in a variety of subdisciplines of economics, including game theory, consumer behavior, industrial organization, public finance, and labor economics.
Is economics a science? Greg Mankiw and Tyler Cowen answer “-yes”-. See also Wikipedia.