This paper is a practical guide (a toolkit) for researchers, students and practitioners wishing to introduce randomization as part of a research design in the field. It first covers the rationale for the use of randomization, as a solution to selection bias and a partial solution to publication...

This paper examines online gift giving in the form of opinion, information, and advice that individuals post on websites. Research has highlighted altruism and reciprocity as the key motives behind such gift giving. We argue that informational gift giving is also strongly driven by status and...

Since many hedonic stimuli (e.g., movies, vacations, food, etc.) are consumed with others, it is important to know how social influence affects the enjoyment of shared experiences. Extrapolation from informational and normative influences suggests that enjoyment is enhanced when others offer...

Self-control theories have focused on various aspects of the processes involved in exerting self-control. In the present paper, we intend to add to this literature by demonstrating that exerting self-control leads one to narrow one's attention and cognition, inducing a narrow mindset. We...

Research on shelf effects in traditional grocery stores has shown that a product's absolute and relative shelf position may strongly affect consumer choices. In this paper, we examine whether and how such shelf effects translate into an online grocery context. We find that a product's choice...

In this paper we claim that the well-established reduction in self-control performance following prior exertion of self-control (the so-called ego depletion effect) is a consequence of people's adaptation to situational demands. Consistent with this claim that follows from cognitive control...

The goal of this experimental study was to test an effectiveness of a group contract designed to control nonpoint source water pollution from farms' runoff (Pushkarskaya 2003). In particular, the regulator pays for pollution reduction credits earned by the group of the farmers, who voluntary...