Averaging estimates is an effective way to improve accuracy when combining expert judgments, integrating group members' judgments, or using advice to modify personal judgments. If the estimates of two judges ever fall on different sides of the truth, which we term bracketing, averaging must...

“Choice architecture” is a metaphor capturing the idea that all choices occur within a structure of contextual and task features. These features in turn help to “construct” a person's choice. In this chapter we summarize the academic literature on three types of choice architecture tools...

Every attribute can be expressed in multiple ways. For example, car fuel economy can be expressed as fuel efficiency (“miles per gallon”), fuel cost in dollars, or tons of greenhouse gases emitted. Each expression, or “translation”, highlights a different aspect of the same attribute. We...

Food production is a major cause of energy use and GHG emissions, and therefore diet change is an important behavioural strategy for reducing associated environmental impacts. However, a severe obstacle to diet change may be consumers' underestimation of the environmental impacts of different...