Committees versus individuals: an experimental analysis of monetary policy decision-making

We report the results of an experimental analysis of monetary policy decision-making under uncertainty. A large sample of economically literate students from the London School of Economics played a simple monetary policy game, as both individuals and committees of five players. Our findings - that groups make better decisions than individuals - accord with previous work by Blinder and Morgan. The experiment also attempted to establish why group decision-making is superior: although some improvement was related to committees taking decisions by majority voting, a significant additional committee benefit was associated with members being able to share information and observe each other's voting behaviour.monetary policy, experimental economics, central banking, uncertainty

Committees Versus Individuals: An Experimental Analysis of Monetary Policy Decision Making

We report the results of an experimental analysis of monetary policy decision making under uncertainty. A large sample of economics students played a simple monetary policy game, both as individuals and in committees of five players. Our findings - that groups make better decisions than individuals - accord with previous work by Blinder and Morgan. We also attempt to establish why this is so. Some of the improvement is related to the ability of committees to strip out the effect of bad play, but there is a significant additional improvement, which we associate with players learning from each other’s interest rate decisions.Monetary policy; experimental economics; central banking; uncertainty

Identifying people with dementia on Twitter

There is a growing body of research on the use of Twitter by people with health conditions, but it does not include people with dementia. In this brief report, we aim to: (1) determine whether people with dementia are using Twitter; (2) provide an estimate of the number of Twitter account holders who identify as having a diagnosis of dementia; and (3) examine the demographic characteristics of these account holders. Tweetcatcher was used to identify tweets containing the search terms ‘dementia’ or ‘Alzheimer’. These data were systematically searched to locate account holders who identified themselves as having a diagnosis of dementia, and a content analysis was conducted of these account holders’ profiles. Thirty account holders self-identified as having a diagnosis of dementia. The average age of account holders was 59 years and the majority were located in North America or the UK. Although the majority of account holders reported having Alzheimer’s disease or did not specify a type of dementia, some rare forms of dementia were also evident. The sample consisted of relatively young account holders and contained more men, which might suggest that other groups are under-represented on Twitter. The majority of account holders considered themselves a dementia activist or were affiliated with a dementia organisation. The findings suggest that people with dementia, with varying demographic characteristics and a range of diagnoses, are active on Twitter. These account holders are more frequently male, relatively young, and dementia activists

How people with dementia use twitter: A qualitative analysis

This is the final version. Available from Elsevier via the DOI in this record. People with dementia are publicly sharing their experiences of living with the condition and acting collectively to produce social change. Social media could support them in doing this, but no previous studies have comprehensively analysed their use of Twitter. The aims of this study were to identify how people with dementia use Twitter and examine the illness identities they create and promote online. Tweetcatcher was used to collect 2774 tweets posted over six months by 12 account holders with dementia, across three countries. Tweets were analysed thematically. Six themes were identified through the analysis: nothing about us without us, collective action, experts by experience, living with dementia not suffering from it, community, and stories of dementia. On Twitter, people with dementia are developing a collective illness identity to further a social movement that is focused on improving the lives of people with dementia. They are also communicating their personal identities by documenting their lived experiences. Twitter is being used to convey positive, rather than negative, messages about dementia. The findings of this study also show that thematic analysis can be applied to micro texts that can combine over time to form longer narratives.National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care South West Peninsula (PenCLAHRC)

How people with dementia use twitter: A qualitative analysis

People with dementia are publicly sharing their experiences of living with the condition and acting collectively to produce social change. Social media could support them in doing this, but no previous studies have comprehensively analysed their use of Twitter. The aims of this study were to identify how people with dementia use Twitter and examine the illness identities they create and promote online. Tweetcatcher was used to collect 2774 tweets posted over six months by 12 account holders with dementia, across three countries. Tweets were analysed thematically. Six themes were identified through the analysis: nothing about us without us, collective action, experts by experience, living with dementia not suffering from it, community, and stories of dementia. On Twitter, people with dementia are developing a collective illness identity to further a social movement that is focused on improving the lives of people with dementia. They are also communicating their personal identities by documenting their lived experiences. Twitter is being used to convey positive, rather than negative, messages about dementia. The findings of this study also show that thematic analysis can be applied to micro texts that can combine over time to form longer narratives

Committees Versus Individuals: An Experimental Analysis of Monetary Policy Decision Making

We report the results of an experimental analysis of monetary policy decision making under uncertainty. A large sample of economics students played a simple monetary policy game, both as individuals and in committees of five players. Our findings - that groups make better decisions than individuals - accord with previous work by Blinder and Morgan. We also attempt to establish why this is so. Some of the improvement is related to the ability of committees to strip out the effect of bad play, but there is a significant additional improvement, which we associate with players learning from each other’s interest rate decisions

The use of Twitter by people with young-onset dementia: A qualitative analysis of narratives and identity formation in the age of social media

A diagnosis of dementia in mid-life can be challenging, causing losses or changes in a person’s identity. Narrative provides a means of reconstructing identity and can be communicated on social media. There has been initial evidence on the value of Twitter for people with dementia, but researchers have not yet directly engaged with users’ perspectives. We employed a narrative model of identity to examine why people with dementia use Twitter and what challenges they face. Interviews were conducted with 11 younger people with dementia and analysed thematically. Participants used Twitter to counter a loss of identity through community membership and by regaining a sense of purpose. They sought to redefine dementia identities by challenging stigma and campaigning for social change. The character limit of tweets facilitated narrative through which participants preserved their identities. These findings suggest that Twitter could be an important source of post-diagnostic support for people with young-onset dementia. However, there are some risks as Twitter was sometimes a hostile environment for individuals who did not present in a ‘typical’ manner, or faced technical difficulties because of their symptoms. In the future, platform developers could work with people with dementia to make Twitter more accessible for this group

Screening prisoners for intellectual disabilities in three English prisons

Background Prisoners with intellectual disabilities are known to be disadvantaged in prisons and to be more susceptible to bullying, segregation, depression and anxiety than other prisoners. Method In this study, nearly 3000 new prisoners entering three English prisons were offered screening for intellectual disabilities, using the LDSQ. Results On average, 75% of all new prisoners entering prison were offered screening, and only 14% refused screening. Overall, just less than 7% were screened positive on the LDSQ and prisons made some reasonable adjustments as a result. Conclusions It is argued that it is feasible to screen for intellectual disabilities in prisons and, given the inequalities to which prisoners with intellectual disabilities are subject in prison, it is time for such screening to be rolled out to all prisons

Computed cardiopulmonography and the idealized lung clearance index, iLCI2.5, in early-stage cystic fibrosis

This study explored the use of computed cardiopulmonography (CCP) to assess lung function in early-stage cystic fibrosis (CF). CCP has two components. The first is a particularly accurate technique for measuring gas exchange. The second is a computational cardiopulmonary model where patient-specific parameters can be estimated from the measurements of gas exchange. Twenty-five participants (14 healthy controls, 11 early-stage CF) were studied with CCP. They were also studied with a standard clinical protocol to measure the lung clearance index (LCI2.5). Ventilation inhomogeneity, as quantified through CCP parameter σlnCl, was significantly greater (P < 0.005) in CF than in controls, and anatomical deadspace relative to predicted functional residual capacity (DS/FRCpred) was significantly more variable (P < 0.002). Participant-specific parameters were used with the CCP model to calculate idealized values for LCI2.5 (iLCI2.5) where extrapulmonary influences on the LCI2.5, such as breathing pattern, had all been standardized. Both LCI2.5 and iLCI2.5 distinguished clearly between CF and control participants. LCI2.5 values were mostly higher than iLCI2.5 values in a manner dependent on the participant’s respiratory rate (r = 0.46, P < 0.05). The within-participant reproducibility for iLCI2.5 appeared better than for LCI2.5, but this did not reach statistical significance (F ratio = 2.2, P = 0.056). Both a sensitivity analysis on iLCI2.5 and a regression analysis on LCI2.5 revealed that these depended primarily on an interactive term between CCP parameters of the form σlnCL*(DS/FRC). In conclusion, the LCI2.5 (or iLCI2.5) probably reflects an amalgam of different underlying lung changes in early-stage CF that would require a multiparameter approach, such as potentially CCP, to resolve