Reputation and lying aversion in the die roll paradigm: Reducing ambiguity fosters honest behavior

2020 ◽  
Vol 41 (4) ◽  
pp. 651-657
Author(s):  
Ann‐Kathrin Crede ◽  
Frauke Bieberstein
Keyword(s):  
Author(s):  
Y C Leung ◽  
L C Chan ◽  
C H Cheng ◽  
T C Lee

An excellent quality of shearing edge implies that a smooth cutting edge without tearing will be observed on the whole edge surface. This is one of the most significant features of the fine-blanking process. To achieve this good blanking edge quality in fine-blanking, quite a large number of factors need to be considered simultaneously during the operation, such as blanking speed, processing material, product shape, lubrication and tool geometry. Thus, the objective of this paper is mainly to study the influence of tool geometry change in fine-blanking for different materials. This is because the nose radius usually seriously deteriorates with increasing service period in mass production, which eventually causes the entire loss of the specific features of the fine-blanking process. Therefore, a tailor-made experimental study was carried out to investigate the relationship between the punch nose radius and the shearing edge quality, such as the shearing edge surface finish, burr height and die-roll height, during fine-blanking for different types of materials. Consequently, findings show that an increase in the punch nose radius produces a higher percentage of fracture of the blanked edge and increases the amount of burr height.


2011 ◽  
Vol 383-390 ◽  
pp. 7122-7127 ◽  
Author(s):  
Jong Deok Kim ◽  
Heung Kyu Kim ◽  
Young Moo Heo ◽  
Sung Ho Chang

In this paper, the relation between die roll height and V-ring position was studied by fine blanking experiments for imaginary special automobile seat recliner gear. The three die inserts and three guide plate inserts with different V-ring positions were machined, and fine blanking tool was manufactured. Using the fine blanking tool, three experiments were conducted on the 650 ton fine blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing the distance between V-ring position and contour of gear. This result can be used to minimize the die roll height of fine blanking gear parts when designing V-ring of fine blanking tool.


2017 ◽  
Vol 80 (11) ◽  
pp. 1026-1034 ◽  
Author(s):  
Heidrun Lingner ◽  
Ines Aumann ◽  
Margarethe Wacker ◽  
Michael Kreuter ◽  
Reiner Leidl ◽  
...  

ZusammenfassungEntscheidungen im Gesundheitswesen sollten sich auf verlässliche und aktuelle Daten stützen. Da solche Daten besonders aus dem ambulanten Sektor kaum vorhanden und/oder nur schwer und zeitverzögert zugänglich sind, soll das neu eingerichtete BeoNet-Register (BNR) die medizinische Versorgungsrealität und -qualität des ambulanten Sektors mithilfe von Routinedaten aus der elektronischen Patientenakte (eP) abbilden. Diese „real-world“-Daten sollen mit Primärerhebungen verknüpft eine breite Datenbasis zur Beantwortung von Fragen der Praxis, der Versorgungsforschung und Ökonomie bilden. Interessierte Praxisinhaber verpflichten sich zu einer längerfristigen Teilnahme an dem 2-phasigen Projekt (Pilot- und Roll-Out-Phase). Informationen der eP der Praxen werden pseudonymisiert, verschlüsselt und über standardisierte Schnittstellen zeitnah, vollständig und longitudinal in die Datenbank (DB) des BNR übertragen, ohne den Praxisbetrieb zu stören. Dafür wird die Behandlungsdatentransfer-Schnittstelle (BDT) als gemeinsamer Nenner unterschiedlicher Arztinformationssysteme genutzt. Die kompilierten Variablen beinhalten Informationen zur Praxis, Stammdaten des Patienten und medizinische Parameter inklusive Angaben zu Diagnose, Therapie und Überweisungen. Ergänzt werden sie durch zusätzliche erhobene ‚patient-reported outcomes‘. Datenerhebung und Datenschutz unterliegen strengen Anforderungen, die im Rahmen des Datenschutzkonzeptes und des Ethikantrages festgelegt und für alle Forscher bindend sind. Retrospektive Auswertungen seit der Einführung der eP sowie Analysen des aktuellen Erkrankungsspektrums des hausärztlichen, pneumologischen und pädiatrischen ambulanten Sektors sind möglich. Derzeit befinden sich 98 497 Patienten-IDs aus Hannover, München und Heidelberg nebst zugehörigen Informationen in der BNR- DB. Die BNR-Daten sind umfangreicher und detaillierter als die Abrechnungsdaten der Krankenkassen. (Semi-) automatisierte Daten- Prüfroutinen und regelmäßige Feedback-Berichte sowie Datenanalysen sind implementiert und werden kontinuierlich erweitert. Während der Pilotphase wurden 2 Anwendungsbeispiele des BNR erarbeitet. Hier wird das COPD-Projekt vorgestellt, dass die Inanspruchnahme von medizinischen Leistungen in Verbindung mit der Lebensqualität Betroffener analysiert. Die Roll-Out-Phase des Projektes startet 2016. Die Datenbasis des BNR für retro- und prospektive Querschnitts- und Längsschnittstudien wird Deutschlandweit und fortlaufend ausgeweitet.


2020 ◽  
Author(s):  
Hernan Bejarano ◽  
Joris Gillet ◽  
Ismael Rodríguez Lara

We investigate experimentally the effect of a negative endowment shock in a trust game to assess whether different causes of inequality have different effects on trust and trustworthiness. In our trust game there may be inequality in favor of the second mover and this may (or may not) be the result of a negative random shock (i.e., the outcome of a die roll) that decreases the endowment of the first-mover. Our findings suggest that inequality leads to differences in behavior. First-movers send more of their endowment and second-movers return more when there is inequality. However, we do not find support for the hypothesis that the cause of the inequality matters. Behavior after the occurrence of a random shock is not significantly different from the behavior when the inequality exists from the outset. Our results highlight that we have to be cautious when interpreting the effects on trust and trustworthiness of negative random shocks that occur in the field (e.g., natural disasters). Our results suggest that these effects are largely driven by the inequality caused by the shock and not by any of the additional characteristics of the shock like saliency or uncertainty.


2011 ◽  
Vol 337 ◽  
pp. 236-241 ◽  
Author(s):  
Xin Hua Huang ◽  
Hua Xiang ◽  
Xin Cun Zhuang ◽  
Zhen Zhao

Nowadays, the compound fine-blanking forming process is one of the most important processes to produce complicate multifunctional parts without subsequent machining. However, the big die-roll occurs in the sharp area is a common problem in this process. In this paper, the method with negative punch-die clearance was proposed to solve this problem by comparing three feasible plans. In addition, the influence on the process with different value of the negative punch-die clearance was studied by the finite element method (FEM). The results of this study verified that the process with suitable value of the negative punch-die clearance can result in significant decrease of the die-roll size. The relationship between the material flow near the region of die-roll and the punch-die clearance was also clarified.


2018 ◽  
Vol 108 (2) ◽  
pp. 419-453 ◽  
Author(s):  
Uri Gneezy ◽  
Agne Kajackaite ◽  
Joel Sobel

This paper studies lying. An agent randomly picks a number from a known distribution. She can then report any number and receive a monetary payoff based only on her report. The paper presents a model of lying costs that generates hypotheses regarding behavior. In an experiment, we find that the highest fraction of lies is from reporting the maximal outcome, but some participants do not make the maximal lie. More participants lie partially when the experimenter cannot observe their outcomes than when the experimenter can verify the observed outcome. Partial lying increases when the prior probability of the highest outcome decreases. (JEL C91, D12, D90, Z13)


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