Default options have been shown to affect behaviour in a variety of economic choice tasks, including health care and retirement savings. Less research has tested whether defaults affect behaviour in the domain of energy efficiency. This study uses data from a randomized controlled experiment in...

Blackouts are normally the result of imbalances in electricity supply and demand. A brief blackout is mostly an inconvenience, but persistent shortfalls--those lasting days, weeks, or months--can cause economic disruption and danger to human life in our technology-rich societies. This...