In the face of global or regional environmental problems, do countries that take unilateral actions inspire other countries to curtail emissions? The effect of leadership at the individual level is investigated by the use ofa novel design ofa laboratory public bad experiment with a leader....

Environmentalists often urge their home countries to take a leading role in reducing global environmental problems like climate change. A pertinent question is, Will examples set by leading nations influence others to follow suit, and if so, do the costs of leading matter? For instance, will...