Stock mispricing, hard-to-value stocks and the influence of internet stock message boards

2020 ◽  
Vol 72 ◽  
pp. 101576
Author(s):  
Xiong Xiong ◽  
Yongqiang Meng ◽  
Nathan Lael Joseph ◽  
Dehua Shen
Crisis ◽  
2019 ◽  
Vol 40 (4) ◽  
pp. 257-264 ◽  
Author(s):  
Thomas Niederkrotenthaler ◽  
Benedikt Till

Abstract. Background: Little is known about presenting problems of primary posters (i.e., posters opening the thread) and their responders in nonprofessional against-suicide and pro-suicide message boards. Aims: We aimed to compare problems described in suicide message boards between different types of users (primary posters and respondents) and between against-suicide, neutral, and pro-suicide message boards. Method: In all, 1,182 archival threads with 20,499 individual postings from seven nonprofessional suicide message boards supporting an against-suicide, neutral, or pro-suicide attitude were randomly selected. Problems mentioned by primary posters and their respondents were coded with content analysis. Differences between pro-suicide, neutral, and against suicide boards, as well as correlations between primary posters and respondents, were calculated. Results: Interpersonal problems were most frequently mentioned by primary posters in against-suicide threads (40.9%) and less frequently in pro-suicide threads (11.8%; p < .001). In pro-suicide boards, the most frequent stressors were suicide method-related (e.g., how to identify a safe method: 26.2% vs. 2.5% in against-suicide boards, p < .001). Primary posters resembled respondents in terms of presenting problems in pro-suicide boards, but not in against-suicide boards. Limitations: Only self-reported problems were assessed. Conclusion: The results confirm a stronger focus on death than on life among users in pro-suicide message boards, and posters with similar problems meet in pro-suicide boards. The posters appear to clearly emphasize social strains over psychiatric problems compared with some professional settings.


2009 ◽  
Author(s):  
Bruce James Vanstone ◽  
Tobias Hahn ◽  
Gavin Finnie
Keyword(s):  

2021 ◽  
pp. 109442812110029
Author(s):  
Eric Quintane ◽  
Martin Wood ◽  
John Dunn ◽  
Lucia Falzon

Extant research in organizational networks has provided critical insights into understanding the benefits of occupying a brokerage position. More recently, researchers have moved beyond the brokerage position to consider the brokering processes (arbitration and collaboration) brokers engage in and their implications for performance. However, brokering processes are typically measured using scales that reflect individuals’ orientation toward engaging in a behavior, rather than the behavior itself. In this article, we propose a measure that captures the behavioral process of brokering. The measure indicates the extent to which actors engage in arbitration versus collaboration based on sequences of time stamped relational events, such as emails, message boards, and recordings of meetings. We demonstrate the validity of our measure as well as its predictive ability. By leveraging the temporal information inherent in sequences of relational events, our behavioral measure of brokering creates opportunities for researchers to explore the dynamics of brokerage and their impact on individuals, and also paves the way for a systematic examination of the temporal dynamics of networks.


2012 ◽  
Vol 35 (1) ◽  
pp. 79-114 ◽  
Author(s):  
Ying Zhang ◽  
Peggy E. Swanson ◽  
Wikrom Prombutr
Keyword(s):  

2021 ◽  
Vol 69 (4) ◽  
pp. 364-372
Author(s):  
Yalcin Yildirim ◽  
Diane Jones Allen

Noise is one of the most frequent consequences of traffic. Public transportation systems, such as the Dallas Area Rapid Transit (DART) authority provides various modes of transportation. Even though the availability of commuting service for the public is a boon to communities, mass transit systems are potential sources of excessive sound levels in daily urban life. This article examines the nexus between the transit station facilities of light rail train (LRT) stations and noise implications at both station and neighborhood scales by studying selected LRT stations. A multilevel linear analysis was conducted to understand the degree of train station amenities and neighborhood characteristics that affect sound levels. Using a type II sound pressure level (SPL)meter, sound measurements were obtained during the weekdays and weekends over several weeks. Upon examining the station amenities, and built environment and sociodemographic characteristics of the neighborhood, findings of this comprehensive research reveal significant implications for sound levels. Stations with ticket vending machines and informative message boards include a higher degree of significance on SPLs, while shelters, crew rooms, bike lockers, restrooms, and windshields are significantly and negatively associated with the noise levels. Additionally, neighborhoods with dense roads, higher speed limits, more neighborhood facilities, and a higher number of transit routes have an increased likelihood of noise levels. Recommendations include creating transformative policies for implementation, and approaches addressing noise for transit authorities, transportation engineers, and planners are presented. Planning and engineering aspects of comfort, aesthetics, safety, and public health, as train stations are daily use spaces for commuters and surrounding communities, should also be considered.


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