• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.331-338
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• 2017

The purpose of the present convergence study is to investigate the relationship among self control, fairness, and happiness. It is to determine whether fairness had a mediating role in the relationship between self control and happiness. Participants were 275 undergraduate students. Self control, fairness, and happiness scales were used. For data analysis, correlation analysis, factor analysis, structural equation modeling analysis were conducted. The present study used structural equation modeling to examine the relation among variables. The analyses revealed that the present data best fit the research model in which self control were directly associated with happiness and mediated by fairness(${\chi}^2(51)=91.723$, TLI=0.919 CFI=0.937 RMSEA=0.054). The results indicate that self control affect happiness directly. And also self control affect happiness indirectly by mediation of fairness. Self control had a positive effect on fairness and happiness. This suggests that it is important to have educational and psycho-social interventions to improve happiness of undergraduate students.

• Journal of Information Technology Services
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• v.6 no.2
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• pp.19-33
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• 2007

The current advance of IT and the e-commerce triggers the wide practice of dynamic pricing in all industries although the price discrimination has been very cautiously applied in the limited areas in the past. The price discrimination which offers different prices for each customer depending on their preference and buying behaviors has recently gained attention as it could provide superior benefits to sellers. The wide adoption of price discrimination, on the other hand, is reported to face buyer resistances and complaints. Our limited understanding on the perception of price fairness, which we think is key concept in the price discrimination on the Internet-enabled transactions, motives us to investigate factors that affect the perception of price fairness. This study focuses on illusion of control and lateral customer relationship to investigate their effects on price fairness in online auction and group purchase context. By conducting laboratory experiments, our study demonstrates that customers' perception on illusion of control in price determination and advantageous lateral customer relationship significantly affect price fairness perception in both online auction and group purchase environment. The findings are expected to provide researchers and managers with useful insights to develop better pricing strategies and design effective dynamic pricing mechanisms.

• Korean Journal of Culture and Social Issue
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• v.26 no.4
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• pp.457-477
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• 2020

The purpose of this study is to confirm the effect of the young generation's Fairness perception on the hopelessness at the present time when the hopelessness of the future that young generation is experiencing is growing with social interest. This study examined the mediating effects of the perceived control and moderating effect self-esteem between the fairness perception and the hopelessness of the young generation. For this purpose, the self-reporting data of 313 young people in their 20s and 30s were collected. The results were as follows: First, fairness awareness was positively correlated with perceived control and self-esteem, and the hopelessness was negatively correlated with fairness awareness, perceive control and self-esteem. Second, perceived control mediated between fairness perception and the hopelessness, Third, self-esteem moderated the relationship between the fairness perception and the hopelessness. The high self-esteem group showed little change in hopelessness due to fairness perception while the low self-esteem group showed a big change in hopelessness due to fairness perception, which means that high self-esteem plays a role in alleviating hopelessness when fairness perception is low. The results of this study can be used as basic data to plan ways to improve mental health and quality of life.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10a
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• pp.471-473
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• 1998

본 논문에서는 기존의 인터넷상에서의 멀티캐스트 프로토콜의 충돌 없는 전개를 위 절대적으로 필요한 혼잡 제어의 주요 특징을 집어 본다. 혼잡 제어시 반드시 고려되어야 할 사항은 성능(Throughtput)과 공정성(Fairness)이다. 본 논문에서는 기존의 TCP기반 흐름과 멀티캐스트 그룹기반 흐름간의 상호 공정성(Intra- Fairness)과 멀태스트 그룹내의 흐름간의 공정성(Intra- Fairness)를 지원하기 위해 수반되는 문제점들에 대해서 이해한다. 전자의 경우, 흔히 TCP-friendly 제어라 하여 많이 연구가 진행중에 있다. 이에 본 논문은 후자에 문제의 초점을 맞춰, 관련 문제를 이해, 분석해 보도록 한다.

• The KIPS Transactions:PartC
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• v.10C no.3
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• pp.311-316
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• 2003

To deploy multicast protocols, fairness to current Internet traffic, particularly TCP, is an important requirement. PGMCC is one of the most promising multicast congestion control proposals but it suffers from degradation of fairness by fixed timeout and uncertain acker selection. In this paper, we suggest addition of an adaptive timeout mechanism and NAK suppression in router using throughput comparison to improve fairness. Our simulation show improved fairness.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.2A
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• pp.121-127
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• 2010

In this paper, we propose a computationally efficient scheduling algorithm that can arbitrarily control the throughput-fairness tradeoff in a multiuser wireless communication environment. As a new scheduling criterion, we combine linearly two well-known scheduling criteria such as one of achieving the maximum sum throughput and the other of achieving the maximum fairness, so as to control the relative proportion of the throughput and the fairness according to a control factor. For linear combining two different criteria, their optimization directivenesses and the units should be unified first. To meet these requirements, we choose an instantaneous channel capacity as a scheduling criterion for maximizing the sum throughput and the average serving throughput for maximizing the fairness. Through a unified linear combining of two optimization objectives with the control factor, it can provide various throughput-fairness tradeoffs according to the control factors. For further simplification, we exploit a high signal-to-noise ratio (SNR) approximation of the instantaneous channel capacity. Through computer simulations, we evaluate the throughput and fairness performances of the proposed algorithm according to the control factors, assuming an independent Rayleigh fading multiuser channel. We also evaluate the proposed algorithm employing the high SNR approximation. From simulation results, we could see that the proposed algorithm can control arbitrarily the throughput-fairness performance between the performance of the scheduler aiming to the maximum sum throughput and that of the scheduler aiming to the maximum fairness, finally, we see that the high SNR approximation can give a satisfactory performance in this situation.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.8
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• pp.3753-3771
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• 2016

Increasingly, numerous and various Internet-capable devices are connected in end user networks, such as a home network. Most devices use the combination of TCP and 802.11 DCF as a system platform, but whereas some devices such as a streaming video persistently generate traffic, others such as a motion sensor do so only intermittently with lots of pauses. This study addresses the issue of performance in this heterogeneous traffic wireless LAN environment from the perspective of fairness. First, instantaneous fairness is introduced as a notion to indicate how immediately and how closely a user obtains its fair share, and a new time-based metric is defined as an index. Second, extensive simulation experiments have been made with TCP Reno, Vegas, and Westwood to determine how each TCP congestion control corresponds to the instantaneous fairness. Overall, TCP Vegas yields the best instantaneous fairness because it keeps the queue length shorter than the other TCPs. In the simulations, about 60% of a fair share of the effective user bandwidth is immediately usable in any circumstance. Finally, we introduce two simple strategies for adjusting TCP congestion controls to enhance instantaneous fairness and validate them through simulation experiments.

• Culinary science and hospitality research
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• v.16 no.2
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• pp.15-30
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• 2010

This study investigates the effect of seriousness and controllability of service failure on perceived fairness, reliability, satisfaction and loyalty of customers. The result of the study is as follows. First, it was expected that a control-attribute and a seriousness-attribute would have an negative(-) impact on perceived fairness-attribute; however, the result showed that both did not have an negative impact on it. Next, a fairness-attribute of a procedure had a significant effect on trust, and a fairness-attribute of interaction and a fairness-attribute of distribution had a significant effect on trust and satisfaction. Lastly, trust had a significant effect on satisfaction while satisfaction had a significant effect on loyalty. Based of the result of this study, food-service enterprises need to perform a fast process of a recovery to overcome service failure rather than confirming a control-attribute and a seriousness-attribute of service failure. Also, they should set up a process of the recovery in the order of trust, satisfaction, and loyalty and check if this process is promptly carried out.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.13 no.2
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• pp.71-89
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• 2002

To investigate effect of organization justice on organizational commitment, I surveyed the concept of organization justice, organizational commitment and organizational citizenship behavior and then I reviewed what formative factors of organization justice increased organizational commitment or what formative factors of organization justice and organizational commitment increased organizational citizenship behavior. The result of this study proved that organization justice and organizational commitment influenced organizational citizenship behavior a lot and the purpose of this study was carried out like following ; The formative factors of organization justice, that is, procedure fairness and distribution fairness come out by theoretical study influenced organization commitment and the formative factors of organization commitment, commitment about company and turnover influenced organizational citizenship behavior. In addition, the hypothesis that the higher the organization justice is, the higher the organizational commitment was positive. Therefore, in position control of restaurant employees, giving employees the motive of organization commitment as procedure fairness and distribution fairness control strictly enable employees to have citizenship about organization and enable employers to control employees effectively.

• Proceedings of the Korea Hospitality Industry Research Society Conference
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• 2002.11a
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• pp.31-46
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• 2002

To investigate effect of organization justice on organizational commitment, I surveyed the concept of organization justice, organizational commitment and organizational citizenship behavior and then I reviewed what formative factors of organization justice increased organizational commitment or what formative factors of organization justice and organizational commitment increased organizational citizenship behavior. The result of this study proved that organization justice and organizational commitment influenced organizational citizenship behavior a lot and the purpose of this study was carried out like following; The formative factors of organization justice, that is, procedure fairness and distribution fairness come out by theoretical study influenced organization commitment and the formative factors of organization commitment, commitment about company and turnover influenced organizational citizenship behavior. In addition, the hypothesis that the higher the organization justice is, the higher the organizational commitment was positive. Therefore, in position control of restaurant employees, giving employees the motive of organization commitment as procedure fairness and distribution fairness control strictly enable employees to have citizenship about organization and enable employers to control employees effectively.