self selection
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Author(s):  
Linda Englund Ögge ◽  
Fiona Murray ◽  
Dominika Modzelewska ◽  
Robert Lundqvist ◽  
Staffan Nilsson ◽  
...  

Risks ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 9
Author(s):  
Łukasz Kuryłowicz ◽  
Adam Śliwiński

The purpose of this paper is an analysis of the presence of self-selection mechanisms on the market that could bring the market closer to the separating equilibrium state, in line with the Rothschild–Stiglitz equilibrium model and its subsequent modifications. An example is the Polish market of compulsory third-party liability insurance of vehicle owners. This paper describes this market in terms of both its structure and its financial results. The main focus is on describing the assumptions of the Rothschild–Stiglitz model for markets operating under the conditions of information asymmetry and based on the self-selection mechanism, allowing for an unequivocal determination of the insured’s profile without the need to actually observe the insured’s behaviour. Finally, we show that thanks to the self-selection induced by the possibility of driving behaviour monitoring, the industry can minimise the negative effect information asymmetry has on the motor insurance market. This can be achieved, for example, by observing the choices made by the insured after being offered a new voluntary contract with a premium based on telematics data. Our analysis was carried out with the use of three selected characteristics that can determine the insured’s risk profile, i.e., distance covered, self-assessment, and insurance premium paid; the significance of the latter—although it may be intuitive—is questionable at commonly accepted significance levels. Therefore, the main result is that although there is some evidence on the disputed matter, there can be no definitive conclusion—especially in terms of risk as measured by insurance premium.


2022 ◽  
Vol 119 ◽  
pp. 102479
Author(s):  
Jiantao Zhou ◽  
Eddie Chi-Man Hui

2021 ◽  
Author(s):  
Lukas Kiessling ◽  
Jonas Radbruch ◽  
Sebastian Schaube

This paper studies how the presence of peers and different peer assignment rules—self-selection versus random assignment—affect individual performance. Using a framed field experiment, we find that the presence of a randomly assigned peer improves performance by 28% of a standard deviation (SD), whereas self-selecting peers induces an additional 15%–18% SD improvement in performance. Our results document peer effects in multiple characteristics and show that self-selection changes these characteristics. However, a decomposition reveals that variations in the peer composition contribute only little to the performance differences across peer assignment rules. Rather, we find that self-selection has a direct effect on performance. This paper was accepted by Yan Chen, decision analysis.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jun Guo ◽  
Jung Yeun Kim ◽  
Sungsoo Kim ◽  
Nan Zhou

PurposeThe authors study whether CEO beauty influences management guidance.Design/methodology/approachThe authors calculate an attractiveness score based on facial symmetry and perform regression analyses to examine the relation between CEO beauty and management guidance.FindingsThe authors find that attractive CEOs are more likely to issue voluntary management earnings guidance. After controlling for this appearance-based self-selection, the authors document that management forecasts provided by attractive CEOs are more optimistic yet less precise. Consistent with this result, the authors find that analysts' consensus forecast error following management forecasts made by attractive CEOs is larger than such error following management forecasts made by unattractive CEOs. The authors further find that the perceived credibility of management forecasts by attractive CEOs is not different from that by unattractive CEOs.Originality/valueThese findings suggest that attractive CEOs are more active but less skillful in issuing management forecasts. This adds to the emerging accounting literature on the relation between facial appearance and information delivery.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xiaolong Feng ◽  
Jianjun Tang ◽  
Huanguang Qiu

Purpose The purpose of this study is to understand the impact mechanism of grassland transfer on herders' production behaviour in pastoral areas. The impact of grassland transfer on herders' livestock production and grazing intensity is quantified.Design/methodology/approach Using the survey data collected for 356 herder households from Inner Mongolia and Gansu, China, quantile regression is employed to assess the heterogeneous effects of grassland transfer on livestock production and grazing intensity. To correct the potential self-selection bias of grassland transfer, the propensity score matching technique is used.Findings Results show that labour, percentage of livestock income and livestock stock are the main factors affecting herders' choice to transfer grassland. The positive effect of grassland transfer on livestock numbers on behalf of those who rented additional grassland is statistically significant but declines with livestock numbers. The sustainability-enhancing effect of grassland transfer on grazing intensity is significant, and the effect becomes larger amongst herder households with higher grazing intensity. The analysis on the impact mechanism shows that grassland transfer significantly promotes the adoption of sustainable grazing modes, such as rotational and seasonal rest grazing, which in turn increases herders' livestock numbers and decreases grazing intensity.Originality/value Few studies have empirically analysed the influence of grassland transfer on livestock numbers and grazing intensity. This study fills this gap by employing a quantile regression to assess the heterogeneous effects of grassland transfer on livestock numbers and grazing intensity, while accounting for self-selection bias. In addition, the authors have examined the influencing mechanisms under which grassland transfer impacts on livestock numbers and grazing intensity.


Author(s):  
Joséphine Gehring ◽  
Dalila Azzout-Marniche ◽  
Catherine Chaumontet ◽  
Claire Gaudichon ◽  
Patrick C. Even

Protein requirement has been determined at 10-15% energy. Under dietary self-selection, rats ingest 25-30% energy as protein and regulate FGF21 (a hormone signaling protein deficiency) to levels lower than those measured with a 15% protein (15P) diet. Our hypothesis is that if a 15P diet was indeed sufficient to ensure protein homeostasis, it is probably a too low protein level to ensure optimal energy homeostasis. Adult male Wistar rats were used in this study. The first objective was to determine the changes in food intake, body composition and plasma FGF21, IGF-1 and PYY concentrations in rats fed 8P, 15P, 30P, 40P or 50P diets. The second was to determine whether the FGF21 levels measured in the rats were related to spontaneous protein intake. Rats were fed a 15P diet and then allowed to choose between a protein diet and a protein-free diet. Food intake and body weight were measured throughout the experiments. Body composition was determined at different experimental stages. Plasma samples were collected to measure FGF21, IGF-1 and PYY concentrations. A 15P diet appears to result in higher growth than that observed with the 30P, 40P and 50P diets. However, the 15P diet probably does not provide optimal progression of body composition owing to a tendency of 15P rats to fix more fat and energy in the body. The variable and higher concentrations of FGF21 in the 15P diet suggest a deficit in protein intake, but this does not appear to be a parameter reflecting the adequacy of protein intake relative to individual protein requirements.


2021 ◽  
Vol 8 (2) ◽  
pp. 173-193
Author(s):  
Anneke H. Stasson

Abstract In the late 1800s and early 1900s, Chinese Christian familial ideals were traditional and revolutionary at the same time. They were traditional in wanting to preserve some role for parents in forming the marriages of their children and in seeing wives as primarily responsible for the care of children. But Christians were revolutionary in encouraging women to develop their personalities and work outside the home. They advocated women’s education and associated education with women’s empowerment and independence. Christians taught that marriage should be based on love and that daughters were just as important as sons, even if they chose to be single. Singleness, spouse self-selection, prioritizing the husband-wife relationship over the parent-child relationship, and pursuing a companionate model of marriage were all ways that Christians helped revolutionize familial ideals in China.


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