scholarly journals The nexus between perceptions of inequality and preferences for redistribution

2020 ◽  
Author(s):  
Roberto Iacono ◽  
Marco Ranaldi
Keyword(s):  
Income Inequality ◽  
Inequality Aversion ◽  
Limited Information ◽  
Preferences For Redistribution ◽  
Information Agents ◽  
Key Factor ◽  
The Mean ◽  
Potential Factors ◽  
Perceptions Of Inequality ◽  
Information Treatment

AbstractThis paper shows that perceptions of inequality are a key factor in the formation of preferences for redistribution and thereby in the determination of the equilibrium redistribution level. We build on the novel stylized facts provided by the survey experimental literature on perceptions of income inequality, highlighting that agents incorrectly estimate the shape of the income distribution because of limited information. Agents with income above the mean believe they are poorer than they actually are, and agents with income below the mean believe themselves to be richer. We revisit the standard framework on the political economy of redistribution and extend it in two ways. First, we introduce a more general two-sided inequality aversion. Second, we incorporate perceptions of income inequality, modeled by assuming that agents form expectations on the income level of the richest and the poorest in society. We show analytically that the equilibrium redistribution level is crucially determined by the interplay between the information treatment correcting the bias in perceptions of inequality and fairness considerations specified by the degree of inequality aversion. By doing this, we add (biased) perceptions of inequality to the list of potential factors explaining why, notwithstanding high inequality, an increase in the desire for redistribution has not been observed in many countries.

Customized anterior craniocervical reconstruction via a modified high-cervical retropharyngeal approach following resection of a spinal tumor involving C1–2/C1–3

2020 ◽  
Vol 32 (3) ◽  
pp. 432-440
Author(s):  
Shaohui He ◽  
Chen Ye ◽  
Nanzhe Zhong ◽  
Minglei Yang ◽  
Xinghai Yang ◽  
...  
Keyword(s):  
Cervical Spinal Cord ◽  
Perioperative Complications ◽  
Japanese Orthopaedic Association ◽  
Spinal Tumor ◽  
Spinal Tumors ◽  
Limited Information ◽  
Improvement Rate ◽  
The Mean ◽  
High Cervical ◽  
Occipital Condyles

OBJECTIVEThe surgical treatment of an upper cervical spinal tumor (UCST) at C1–2/C1–3 is challenging due to anterior exposure and reconstruction. Limited information has been published concerning the effective approach and reconstruction for an anterior procedure after C1–2/C1–3 UCST resection. The authors attempted to introduce a novel, customized, anterior craniocervical reconstruction between the occipital condyles and inferior vertebrae through a modified high-cervical retropharyngeal approach (mHCRA) in addressing C1–2/C1–3 spinal tumors.METHODSSeven consecutive patients underwent 2-stage UCST resection with circumferential reconstruction. Posterior decompression and occiput-cervical instrumentation was conducted at the stage 1 operation, and anterior craniocervical reconstruction using a 3D-printed implant was performed between the occipital condyles and inferior vertebrae via an mHCRA. The clinical characteristics, perioperative complications, and radiological outcomes were reviewed, and the rationale for anterior craniocervical reconstruction was also clarified.RESULTSThe mean age of the 7 patients in the study was 47.6 ± 19.0 years (range 12–72 years) when referred to the authors’ center. Six patients (85.7%) had recurrent tumor status, and the interval from primary to recurrence status was 53.0 ± 33.7 months (range 24–105 months). Four patients (57.1%) were diagnosed with a spinal tumor involving C1–3, and 3 patients (42.9%) with a C1–2 tumor. For the anterior procedure, the mean surgical duration and average blood loss were 4.1 ± 0.9 hours (range 3.0–6.0 hours) and 558.3 ± 400.5 ml (range 100–1300 ml), respectively. No severe perioperative complications occurred, except 1 patient with transient dysphagia. The mean pre- and postoperative visual analog scale scores were 8.0 ± 0.8 (range 7–9) and 2.4 ± 0.5 (range 2.0–3.0; p < 0.001), respectively, and the mean improvement rate of cervical spinal cord function was 54.7% ± 13.8% (range 42.9%–83.3%) based on the modified Japanese Orthopaedic Association scale score (p < 0.001). Circumferential instrumentation was in good position and no evidence of disease was found at the mean follow-up of 14.8 months (range 7.3–24.2 months).CONCLUSIONSThe mHCRA provides optimal access to the surgical field at the C0–3 level. Customized anterior craniocervical fixation between the occipital condyles and inferior vertebrae can be feasible and effective in managing anterior reconstruction after UCST resection.

Growing Inequality and Public Awareness of Inequality in the States

2017 ◽  
Author(s):  
William W. Franko ◽  
Christopher Witko
Keyword(s):  
Public Opinion ◽  
Income Inequality ◽  
Public Awareness ◽  
Public Concern ◽  
The Public ◽  
Political Conditions ◽  
Perceptions Of Inequality ◽  
Public Opinion Polls ◽  
Opinion Polls

Here the authors present the variation that exists in income inequality across the states, and variation in public awareness or concern about income inequality as measured by public opinion polls. Though politicians may decide to tackle income inequality even in the absence of public concern about inequality, the authors argue that government responses are more likely when and where there is a growing awareness of, and concern about, inequality, which is confirmed in the analyses in this book. To examine this question in subsequent chapters, a novel measure of public awareness of rising state inequality is developed. Using these estimates, this chapter shows that the growth in the public concern about inequality responds in part to objective increases in inequality, but also that state political conditions, particularly mass partisanship, shape perceptions of inequality.

scholarly journals Credibility of Digital Political News in Spain: Comparison between Traditional Media and Social Media

2021 ◽  
Vol 10 (5) ◽  
pp. 170
Author(s):  
Reinald Besalú ◽  
Carles Pont-Sorribes
Keyword(s):  
Social Media ◽  
News Item ◽  
Digital Television ◽  
Fake News ◽  
Traditional Media ◽  
Political News ◽  
Digital News ◽  
Key Factor ◽  
The Mean ◽  
Digital Formats

In the context of the dissemination of fake news and the traditional media outlets’ loss of centrality, the credibility of digital news emerges as a key factor for today’s democracies. The main goal of this paper was to identify the levels of credibility that Spanish citizens assign to political news in the online environment. A national survey (n = 1669) was designed to assess how the news format affected credibility and likelihood of sharing. Four different news formats were assessed, two of them linked to traditional media (digital newspapers and digital television) and two to social media (Facebook and WhatsApp). Four experimental groups assigned a credibility score and a likelihood of sharing score to four different political news items presented in the aforementioned digital formats. The comparison between the mean credibility scores assigned to the same news item presented in different formats showed significant differences among groups, as did the likelihood of sharing the news. News items shown in a traditional media format, especially digital television, were assigned more credibility than news presented in a social media format, and participants were also more likely to share the former, revealing a more cautious attitude towards social media as a source of news.

SET-VALUED PERFORMANCE APPROXIMATIONS FOR THE QUEUE GIVEN PARTIAL INFORMATION

2020 ◽  
pp. 1-23
Author(s):  
Yan Chen ◽  
Ward Whitt
Keyword(s):  
Steady State ◽  
Decay Rate ◽  
Waiting Time ◽  
Partial Information ◽  
Upper And Lower Bounds ◽  
Interarrival Time ◽  
Limited Information ◽  
Wide Range ◽  
The Mean ◽  
Third Moment

In order to understand queueing performance given only partial information about the model, we propose determining intervals of likely values of performance measures given that limited information. We illustrate this approach for the mean steady-state waiting time in the $GI/GI/K$ queue. We start by specifying the first two moments of the interarrival-time and service-time distributions, and then consider additional information about these underlying distributions, in particular, a third moment and a Laplace transform value. As a theoretical basis, we apply extremal models yielding tight upper and lower bounds on the asymptotic decay rate of the steady-state waiting-time tail probability. We illustrate by constructing the theoretically justified intervals of values for the decay rate and the associated heuristically determined interval of values for the mean waiting times. Without extra information, the extremal models involve two-point distributions, which yield a wide range for the mean. Adding constraints on the third moment and a transform value produces three-point extremal distributions, which significantly reduce the range, producing practical levels of accuracy.

Operative Treatment for Hallux Valgus With Moderate to Severe Metatarsus Adductus

2019 ◽  
Vol 40 (6) ◽  
pp. 641-647 ◽  
Author(s):  
Hiroaki Shima ◽  
Ryuzo Okuda ◽  
Toshito Yasuda ◽  
Katsunori Mori ◽  
Momoko Kizawa ◽  
...  
Keyword(s):  
Hallux Valgus ◽  
Scale Score ◽  
Operative Treatment ◽  
Weight Bearing ◽  
Case Series ◽  
Limited Information ◽  
Significant Correction ◽  
Metatarsus Adductus ◽  
The Mean

Background: Operative treatment is indicated for patients who have symptomatic hallux valgus (HV) with moderate to severe metatarsus adductus (MA). However, there is limited information available on the operative procedures and outcomes for the treatment of HV with MA. We aimed to investigate the average 10-year follow-up clinical and radiologic outcomes. Methods: Seventeen patients (21 feet, average age: 60.1 years) with symptomatic HV with moderate to severe MA were operatively treated. Mean postoperative follow-up duration was 114.4 (24-246) months. All feet had metatarsus adductus angle ≥20 degrees on dorsoplantar weight-bearing radiograph. The procedure included a proximal crescentic osteotomy of the first metatarsal and abduction osteotomy of the proximal third of the second and third metatarsals. Results: The mean American Orthopaedic Foot & Ankle Society scale score improved significantly postoperatively ( P < .001). The mean postoperative visual analog scale score (17 feet) was 2.0 (0-6). Preoperative metatarsalgia was severe in 2 feet, moderate in 17, and mild in 2. At the most recent follow-up evaluation, 11 feet had no pain, 9 had mild pain, and 1 had moderate pain. The mean hallux valgus angle, intermetatarsal angle, and metatarsus adductus angle significantly decreased postoperatively ( P < .001 for all). Recurrence of HV (HV angle ≥ 20 degrees) was observed in 4 feet. Conclusion: The clinical and radiologic results indicated that our novel operative treatment for HV with moderate to severe MA can achieve significant correction of HV with MA deformities and significant improvement in pain and function. Level of Evidence: Level IV, retrospective case series.

scholarly journals Effect of Tobacco Cessation on Weight in a Veteran Population

2020 ◽  
Vol 11 ◽  
pp. 215013272096365
Author(s):  
Crystal Zhou ◽  
Nicole G. Tran ◽  
Timothy C. Chen
Keyword(s):  
Weight Gain ◽  
Tobacco Cessation ◽  
Statistical Significance ◽  
Limited Information ◽  
Inclusion Criteria ◽  
Descriptive Data ◽  
Weight Outcomes ◽  
The Mean ◽  
Statistical Change

Introduction/Objectives: Weight gain concerns remain a barrier to tobacco cessation. Literature suggests that weight gain can occur after stopping tobacco, but continuing tobacco can have far worse outcomes. Limited information is available regarding weight gain in military personnel. The objective of this study was to evaluate weight change in veterans that stopped tobacco for a minimum of 12 months enrolled in a pharmacist managed telephone tobacco cessation clinic (PMTTCC). Methods: A retrospective analysis of veterans who had been tobacco-free for 12 months enrolled in a PMTTCC were included in this analysis. Primary outcomes were change in weight (kg) and body mass index (BMI) from baseline. Descriptive data were utilized where appropriate and paired t-tests were utilized for the primary outcomes. Results: Seventy-seven patients were screened and 10 were excluded. Sixty-seven veterans met inclusion criteria and were mostly male (91%, n = 61) and Caucasian (74.6%, n = 50). At 12 months post cessation, the mean weight gain was (1.81 kg ± 6.83, P = .03) and BMI (0.51 ± 2.23 kg/m2, P = .06). Conclusions: Veterans appeared to have minimal weight gain despite statistical significance and no statistical change with BMI after 12 months of being tobacco-free. Results suggest that the long-term weight gain is minimal, and a comprehensive tobacco cessation program can be helpful to improve weight outcomes.

scholarly journals Misperceptions of income distributions: cross-country evidence from a randomized survey experiment

2020 ◽  
Author(s):  
Elisabeth Bublitz
Keyword(s):  
Income Distribution ◽  
Imperfect Information ◽  
Survey Experiment ◽  
Significant Treatment ◽  
Income Distributions ◽  
Position Bias ◽  
Preferences For Redistribution ◽  
The Usa ◽  
Cross Country ◽  
Information Treatment

Abstract Can imperfect information, as revealed in individual misperceptions about income distributions, explain the demand for redistribution? I conduct a representative survey experiment in Brazil, France, Germany, Russia, Spain and the USA, providing a personalized information treatment on income distribution to a randomly chosen subsample. Most respondents misperceive their own position in the income distribution. These biases differ notably by country and the true income position. Correcting misperceptions slightly shifts the demand towards less redistribution in Germany and Russia. This shift appears to be driven by respondents with a negative position bias. The lack of significant treatment effects in other countries may result from different individual reactions that cancel each other out. Thus, the existence of systematic misperceptions underscores their importance for understanding preferences for redistribution.

scholarly journals Validation and update of OMI Total Column Water Vapor product

2016 ◽  
Vol 16 (17) ◽  
pp. 11379-11393 ◽  
Author(s):  
Huiqun Wang ◽  
Gonzalo Gonzalez Abad ◽  
Xiong Liu ◽  
Kelly Chance
Keyword(s):  
Water Vapor ◽  
Liquid Water ◽  
Retrieval Algorithm ◽  
Ozone Monitoring Instrument ◽  
Validation Data ◽  
Data Set ◽  
Wide Range ◽  
Key Factor ◽  
The Mean ◽  
Total Column

Abstract. The collection 3 Ozone Monitoring Instrument (OMI) Total Column Water Vapor (TCWV) data generated by the Smithsonian Astrophysical Observatory's (SAO) algorithm version 1.0 and archived at the Aura Validation Data Center (AVDC) are compared with NCAR's ground-based GPS data, AERONET's sun-photometer data, and Remote Sensing System's (RSS) SSMIS data. Results show that the OMI data track the seasonal and interannual variability of TCWV for a wide range of climate regimes. During the period from 2005 to 2009, the mean OMI−GPS over land is −0.3 mm and the mean OMI−AERONET over land is 0 mm. For July 2005, the mean OMI−SSMIS over the ocean is −4.3 mm. The better agreement over land than over the ocean is corroborated by the smaller fitting residuals over land and suggests that liquid water is a key factor for the fitting quality over the ocean in the version 1.0 retrieval algorithm. We find that the influence of liquid water is reduced using a shorter optimized retrieval window of 427.7–465 nm. As a result, the TCWV retrieved with the new algorithm increases significantly over the ocean and only slightly over land. We have also made several updates to the air mass factor (AMF) calculation. The updated version 2.1 retrieval algorithm improves the land/ocean consistency and the overall quality of the OMI TCWV data set. The version 2.1 OMI data largely eliminate the low bias of the version 1.0 OMI data over the ocean and are 1.5 mm higher than RSS's “clear” sky SSMIS data in July 2005. Over the ocean, the mean of version 2.1 OMI−GlobVapour is 1 mm for July 2005 and 0 mm for January 2005. Over land, the version 2.1 OMI data are about 1 mm higher than GlobVapour when TCWV  <  15 mm and about 1 mm lower when TCWV  >  15 mm.

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