very likely despite the fact that most people are not selfish. -- Public goods experiments ; social preferences …

Laboratory experiments are a widely used methodology for advancing causal knowledge in the physical and life sciences …. With the exception of psychology, the adoption of laboratory experiments has been much slower in the social sciences …, although during the last two decades, the use of lab experiments has accelerated. Nonetheless, there remains considerable …

withdrawing all support. -- moral judgments ; moral psychology ; framing effects ; public goods experiments ; free riding …