Executive summary Around the world, populations are ageing at a faster pace than in the
past and this demographic transition will have effects on all aspects of societies. In May …

Physical inactivity is a major concern and poor adherence to exercise programs is often
reported. The aim of this paper was to systematically review published reviews on the study …

An influential line of thinking in behavioral science, to which the two authors have long
subscribed, is that many of society's most pressing problems can be addressed cheaply and …

The stalling of COVID-19 vaccination rates threatens public health. To increase vaccination
rates, governments across the world are considering the use of monetary incentives. Here …

Policy-makers are increasingly turning to behavioural science for insights about how to
improve citizens' decisions and outcomes. Typically, different scientists test different …

Many have argued that digital technologies such as smartphones and social media are
addictive. We develop an economic model of digital addiction and estimate it using a …

The rise of social media has provoked both optimism about potential societal benefits and
concern about harms such as addiction, depression, and political polarization. In a …

Gamification, an emerging idea for using game design elements and principles to make
everyday tasks more engaging, is permeating many different types of information systems …

Workplace wellness programs cover over 50 million US workers and are intended to reduce
medical spending, increase productivity, and improve well-being. Yet limited evidence exists …

We document three remarkable features of the Opower program, in which social comparison-
based home energy reports are repeatedly mailed to more than six million households …