The idea of external validity, which is well-known in the social sciences, has recently also been emphasized in experimental economics. It has been argued that external validity is an important criterion in experimental research, which has been neglected by philosophy of science. In connection...

Purpose – To show that necessary condition hypotheses are important in operations management, and to present a consistent methodology for building and testing them. Necessary condition hypotheses (“X is necessary for Y”) express conditions that must be present in order to have a desired...