It is well established that human newsvendors tend to order insufficient inventory in high-margin situations, possibly due to implicit risk aversion. In this study, we investigate the use of framing to change newsvendors' risk preference in order to induce them to make better ordering decisions. Through an exploratory experiment and five different treatments of the newsvendor problem, we found risk reversal only in the treatments with one question. In the other four treatments and the exploratory experiment, we asked multiple questions and found no evidence of risk reversal. Thus, we conclude that risk reversal cannot reliably be used without pretesting and that behavioral theories need to be tested in context. Finally, we reaffirm research showing that relying on averages can mask the heterogeneity of human decision-making.

Reminiscing is a valuable activity that people of all ages spontaneously and informally partake in as part of their everyday lives. This paper discusses the design and use of Pensieve, a system that supports everyday reminiscence by emailing memory triggers to people that contain either social media content they previously created on third-party websites or text prompts about common life experiences. We discuss how the literature on reminiscence informed Pensieve's design, then analyze data from 91 users over five months. We find that people value spontaneous reminders to reminisce as well as the ability to write about their reminiscing. Shorter, more general triggers draw more responses, as do triggers containing people's own photosalthough responses to photos tended to contain more metadata elements than storytelling elements. We compare these results to data from a second, Pensieve-like system developed for Facebook, and suggest a number of important aspects to consider for both designers and researchers around technology and reminiscence.

Abstract. Informal interactions are a key element of workgroup communication, but have proven difficult to support in distributed groups. One reason for this is that existing systems have focused either on novel means for gathering information about the availability or activity of others, or on allowing people to display their activities to others. There has not been sufficient focus on the interplay between these activities. This interplay is important, however, because mutual awareness and attention are the mechanisms by which people negotiate the start of conversations. In this paper, we present the OpenMessenger Framework, a system and design framework rooted in the assumption that individual behaviors occur in anticipation of and/or in response to the behavior of others. We describe both the system architecture, and specific examples of the novel implementations it enables. These include techniques for coupling gathering behaviors with display behaviors, and for integrating these into user workspaces via peripheral displays and gaze tracking.

The increasing popularity of applications that share location information over the internet enables the mapping of people's pictures and activities. Such applications often focus on the now, ignoring the importance of places and stories from the past. Inspired by recent work in HCI around reminiscing, in this paper we present a study in which 16 people used Google My Maps to write about their past, using place as a trigger for memories. People had a wide variety of strategies for choosing which places they remembered and the stories they told about those places; on balance they liked the idea of using maps as a tool for reminiscing, suggesting that this is a promising line of inquiry for further work.