• 논리연구
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• 제7권1호
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• pp.67-83
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• 2004

The purpose of this paper is to defend Kripke's theory of truth from Simmons' objection. First after introducing various sorts of the liar paradox, briefly I explain Tarski's attempt to solve the puzzle. Then, I outline Kripke's solution by using the concept of 'fixed point'. Simmons offers an interesting objection against Kripke's solution. He uses a diagonal argument in his attack to Kripke's idea. I claim that Simmons seem to use 'exclusion negation' in refuting Kripke. I think, however, there is an alternative interpretation, which is 'choice negation'. With using choice negation, I maintain that Kripke's theory of ruth can be defended from Simmons' objection.

• 유통과학연구
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• 제11권5호
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• pp.63-76
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• 2013

Purpose - For the past several decades, behavioral economics or behavioral decision theory has undergone rapid development. This study provides a critical review of the development of behavioral economics with a focus on what are deemed to be core theories in the field. Starting from the utility function proposed by Daniel Bernoulli in the 18th century, the development history of utility functions until the emergence of the prospect theory is thoroughly reviewed. Some of the experimental results violating the traditionally assumed utility function and supporting the prospect theory value function are summarized. The most representative principles of rational choice are transitivity, independence from irrelevant alternatives (IIA), and regularity. The development of behavioral economics has been triggered by finding counter-examples to these principles. Some of the choice behaviors discussed in this study as counter-examples to the traditional theories of rational choice are the St. Petersburg paradox; the Allais paradox; gambling behavior; and the various context effects including the similarity effect, attraction effect, and the compromise effect. The Elimination-by-Aspects (EBA) model, which was proposed as an explanation for the similarity effect, is discussed in detail as well. Based on the literature review and further analysis, this study summarizes the relationship between the context effects, prospect theory, and EBA model. Research design, data, and methodology - This study provides an extensive literature review on several important theories in the field of behavioral decision theory and adds some critical comments to the theories and the relationships among them. This study first reviews the development of utility functions. Daniel Bernoulli introduced the concept of utility function to solve the St. Petersburg paradox. In the mid-20th century, Herbert Simon proposed the "satisficing" heuristic and presented a value function with a shape different from traditional utility functions. This study highlights the strengths and weaknesses of several utility functions proposed until the emergence of the prospect theory value function. Results - This study posits that prospect theory and EBA model are the two most important theories in the field of behavioral decision theory. They can explain various choice behaviors that traditional utility maximization analysis has been unable to. The application of these models to various fields is further increasing nowadays. This study explains how prospect theory and the EBA model can be used to explain the context effects. Conclusions - The traditional economic theory relies on a single variable called "utility" in explaining consumer choice. However, this study argues that, in investigating consumer choice, several other variables should also be considered. These are the similarity among alternatives, an alternative's prototypicality within the category, the dominance relationship between alternatives, and the reference point in evaluating alternatives. Due to the development of behavioral economics, we are now closer to a more complete understanding of consumer choice behavior than in the past when we had only a single tool called utility.

• Management Science and Financial Engineering
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• 제16권2호
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• pp.115-138
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• 2010

People acknowledge that mobile technology has improved their lives in terms of convenience, flexibility, connectedness, and new freedom of choice. However, as people increase usage of technology, they may become frustrated, challenged, annoyed, and irritated with it. This is the main characteristic of mobile technology paradoxes. Once technology gets into people's daily life, which it already has, people will look for a way to minimize the dependency on the technology, as well as finding a way to use the technology to improve the quality of their life. The focus of this study is to understand the mobile technology paradoxes and to develop coping strategies. As mobile technology is already a part of people's daily life, it is inevitable that people need to utilize technology as part of their lifestyles. This study developed a research model regarding the relationship between mobile technology perception and choice of coping strategies, including personal risk propensity as a mediating factor. Discussion on the importance of the technology paradoxes for developing mobile solution and services from the customers' perspectives followed after hypotheses testing.

• 한국ITS학회 논문지
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• 제4권1호
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• pp.81-88
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• 2005

최근 실시간 교통정보제공이 가능해지고, 사용자간의 커뮤니케이션이 활발해짐에 따라, 사용자간의 협력이 가능해질 것으로 보인다. 만약 이런 상황이 현실화된다면, 사용자간의 비협력을 전제로 하는 Wardrop 의 경로선택원리는 수정이 필요하며, 사용자간의 협력을 균형원리에 포함시킬 필요가 있다. 즉, 사용자간의 협력하에서 경로를 선택하는 원리를 새롭게 정의해야 한다. 본 연구에서는 교통정보를 통해 운전자간의 협력이 가능한 교통망 상황하에서 운전자의 경로선택기준을 제시하는 데 목적이 있다. 이를 Wardrop의 사용자균형(Wardrop User Equilibrium)과는 달리 협력적 사용자균형(Cooperative User Equilibrium)으로 정의하며, 몇 가지 예제를 통하여 이들 두 개의 사용자 균형상태를 분석한 결과, 협력적 균형상태가 Wardrop의 균형상태 보다 더 좋은 해를 찾을 수 있음을 확인할 수 있었다.

• 대한산업공학회지
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• 제23권1호
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• pp.77-94
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• 1997

Reengineering, also known as a business process redesign, involves a fundamental rethinking, and often a radical redesign, of an entire business process or a set of process to achieve dramatic improvements. The central paradox of reengineering is that its own advantages constitute the greatest threat to its success. For reengineering to be the right choice, the organization must have real capacities to embrace changes across the board. The key is to begin with, and to preserve, a vision of the new order, which drives this structured approach, and is in turn calibrated by that approach. However, in most cases of these calibrations, the empirical evidences on the effect of determinants in the reengineering are required. Seemingly, the research results in this area are scarcely verified. This article tried to search the effect of four dimensions of the reengineering toward the performance of reengineering. The results showed that the factors of the organization behavior and of the methodology/operation had more affected on the performance.

• 논리연구
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• 제17권2호
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• pp.253-287
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• 2014

영어 'any'는 일차술어논리에서 'every', 'all', 'each' 등과 유사하게 다루어지지만, 자연언어에서 이들은 서로 다른 의미를 갖는다. 특히 'any'는 부정어와 함께 사용되는데, 언어학자들은 이 현상에 주목하고 이를 설명하고자 하였다. 필자는 기존의 언어학적 설명이 만족스럽지 못한 점을 지적하고 벤들러가 'any'의 논리적 특성에 관해서 오래 전에 제시한 철학적 통찰에 주목한다. 필자의 분석에 따르면 'any'는 벤들러가 '선택의 자유'라고 부르는 특성을 일차적으로 가지며 파인이 '임의의 대상'이라고 부르는 것을 가리킨다. 이 과정에서 필자는 'any'의 논리적 특성이 한국어 '아무'의 분석을 통해서 더 잘 드러난다는 점을 보인다. 필자는 이러한 분석이 중요한 철학적 함축을 갖는다고 생각하며, 그 한 가지 사례로 보편 일반화 규칙과 서문의 역설이 제기하는 문제가 'any'의 논리적 특성에 대한 분석을 통해서 새롭게 조망될 수 있음을 보인다.

• 노동경제논집
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• 제43권4호
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• pp.87-116
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• 2020

본 연구는 선택대안의 수가 증가할 때 개인의 효용이 꼭 증가하는 것은 아닐 수 있음을 노동시장의 관점에서 보고자 하였다. 한국노동패널조사(KLIPS)의 3차 부가조사에서 수집한 취업제의를 받은 개수와 매년 수집되는 노동자의 직업만족도 변수를 각각 선택대안의 수와 개인의 효용에 대한 대리변수로 사용하여 일자리선택과 직업만족도의 상관관계를 실증분석하였다. 분석 결과, 취업제의의 수는 개인의 소득을 통제한 경우 직업만족도와 음(-)의 관계가 있는 것으로 나타났다. 또한, 이 관계에는 성별, 나이, 소득에 따른 이질성이 존재한다. 이러한 결과를 토대로 본 논문은 효용에 있어서 취업제의의 수가 끼칠 수 있는 잠재적인 부정적인 영향에 대해 논의한다.

• Asia pacific journal of information systems
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• 제33권4호
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• pp.1156-1170
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• 2023

Various corporates have launched products and brands to meet the diverse needs of consumers. However, an excess of information and products could be collapsed into a choice paradox far from the intention. As an alternative to these problems, curation-based services have recently been in the limelight and can be adopted into e-commerce sites. As one of the earlier studies on the considerable factors of curation services, this study focuses on the online fashion recommendation system in which design quality, interactivity, and perceived usefulness will affect trust, satisfaction, and continued intention to use. In the result, the design quality factor shows a positive effect on satisfaction, but not on the trust. Also, interactivity doesn't demonstrate a significant positive effect on both the satisfaction and the trust factors far from the previous ones but the perceived usefulness had a positive effect on those. In addition, the personalization does not affect a significant effect on the satisfaction factor but on the trust factor. Subsequently, the trust affects the satisfaction, and the satisfaction on the continued intention to use factor, but trust does not significantly affect the continued intention to use directly.

• 한국콘텐츠학회논문지
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• 제20권12호
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• pp.103-111
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• 2020

이 글은 이른바 '사회주의 리얼리즘 영화'를 대표하는 감독으로 알려진 켄 로치의 <레이닝 스톤>(1993)을 연구대상으로 선정해 일상(생활)과 소외의 논제를 탐구하고자 했다. 이를 위해 일상(생활), 일상성, 사회 공간, 일상공간, 소외와 관련된 주요 이론들과 앙리 르페브르의 논의를 이론적 배경이자 연구방법론으로 활용했다. 연구결과에 의하면, 켄 로치 감독은 <레이닝 스톤>의 공터나 주차장 같은 공적인 사회공간과 가정(집) 등의 사적인 일상 공간에서 발생하는 자본주의의 병폐들을 비판함으로써 일상(생활)의 변혁 가능성을 제시한다. 또한 '돌비'를 맞을 수밖에 없는 노동자계급의 소외가 당연시되는 현실과 그런 현실로부터의 탈소외가 일상(생활)에서 이루어질 수 있다는 역설을 강조하기도 한다. 이와 같은 연구결과는 일상의 사회 공간이 일상(생활)의 일상성을 변화시킬 수 있는 기반임을 뜻한다고 할 수 있다.

• 한국정보시스템학회지:정보시스템연구
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• 제27권1호
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• pp.153-169
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• 2018

Purpose Since human brains catch images faster than texts or numbers, infographics has been widely used in business in the form of "information dashboard" to enhance the efficiency of decision-making. Groupware, however, has neglected the adoption and use of infographics, in particular, in the idea generation process. Given that an overall performance of groupware-based idea generation is no better than that of the (paper-and-pencil-based) Nominal Group Technique, Jung et al. (2010) adopted the notion of infographics in the form of performance feedback to solve the productivity paradox. With the consistent results, which demonstrate beneficial effects of infographics on performance enhancement, an interesting observation that groups with the bar chart treatment performed better than groups with the dot chart treatment was made. The main purpose of this study was to find if there were a performance consistency between the outcomes from the previous study and the outcomes from the current study. Design/methodology/approach In experiment 1, we employed the same system used in the previous study (i.e., Jung et al., 2010). As individuals' contributions accumulated, the mechanism visually displayed individuals' performances two-dimensionally in the form of a bar chart or a dot chart. Then, we compared the performance outcomes from this study to the outcomes from previous study (i.e., Jung et al., 2010). In experiment 2, we modified the performance graph to test the effect of "playfulness" on performance by converting dots to car images. Then, we compared the performance outcome from experiment 2 to the outcomes from experiment 1. Findings Just like our interesting (and unexpected) finding in Jung et al.'s study (2010), the outcome confirmed a consistent superior performance of a bar chart. This implies that a bar chart is a better choice when stimulating performance with a visual aid in the context of groupware-based idea generation. Although a bar chart was criticized in a way that errors of length-area judgments are 40 ~ 250% greater than those of positional judgments along a common scale, such illusion turned out to be facilitating upward performance comparison better. Regarding Experiment 2, the outcome showed that the revised-dot graph is as good as the bar graph in terms of quantity and quality score of ideas. We attribute the performance enhancement of the resized-dot to the interaction between the motivational characteristic and the situational characteristic of playfulness because individuals in the revised-dot graph treatment performed better than individuals in the dot graph treatment. Given the order of performance (Bar >= Revised Dot > Dot) that the revised-dot treatment performed the same as (or lower than) the bar treatment, an additional research is warranted to reach to a consistent outcome.