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Will COVID-19 affect consumer irrational behavior? A survey of China's consumer market based on FAHP
위연(RAN WEI),황비(FEI HUANG) 글로벌경영학회 2023 글로벌경영학회지 Vol.20 No.3
COVID-19의 영향으로 인해 사람들의 심리와 소비 행위는 팬데믹 상황에서 약간의 변화가 일어났으며, 이러한 변화는 사회의 안정에 영향을 미칠 뿐만 아니라 정부가 국민경제의 균형 잡힌 건강한 발전을 유지하는데장애가 되었다. 본 연구는 COVID-19의 유행 아래 주민들의 소비행위가 비이성적으로 전환되는 것에영향을 끼치는 요인을 연구하기 위해 두 가지 단계의 접근법을 채택하였다. 첫 번째 단계에서는 FAHP를 실행하여 제안된 연구 모델 각 요소의 상대적중요성을 결정하고, 두 번째 단계에서는 SEM을 사용하여 중국의 20개성 66개 도시의 응답자 150명을 대상으로 연구 가설을 검증하였다. FAHP의 결과에 따르면 COVID-19 상황에서 희소성의 인식은 소비자의 비이성적 전환행위에 가장 큰 영향을 미치는 것으로 나타났다. 실증연구 결과에 따르면 희소성의 인식, 불량한 정서 및 소비자 선호의 변화는 모두 팬데믹 상황 아래주민들의 소비 행위에 비이성적인 변화를 부분적으로 조정하였으며, 동시에 정부의 팬데믹 예방 조치에 대한 주민들의 긍정적인 인식은 팬데믹 상황에서 부분적으로 비이성적 소비행위의 발생을 부정적인 방향으로 조절하였다. 이에 따라 본 연구는 학제간 이론 및 방법론적통합을 실현하였을 뿐만 아니라 정부에 COVID-19 관리 조치가 팬데믹 상황에서 주민 소비 행위의 비이성적인 변화를 완화하는데 유용하고 계량화된 측정 기준을 제공한다. 또한 관련 소비행위 연구에 비이성적인 소비행위에관한 문헌을 풍부하게 할 수 있을 뿐만 아니라 중국 정부에 공중 보건 비상 사태 중 주민들의 비이성적인 소비행위를 통제하기 위한 이론적, 실증적, 실천적 사례의 지원을 제공할 수도 있다. Under the influence of COVID-19, people's psychology and consumer behavior have changed somewhat from the pandemic, and these changes have not only affected the stability of society but also created obstacles for the government to maintain the balanced and healthy development of the national economy. Our study uses a two-step approach to investigate the factors influencing the irrational shift in residents' consumption behavior under COVID-19. In the first step, FAHP was executed to determine the relative importance of the factors in the proposed research model. In the second step, the study hypotheses were tested using SEM with data from 150 respondents in 66 cities across 20 provinces in China. The FAHP results show that perceived scarcity has the highest weight of influence on irrational shifts in consumer behavior under COVID-19. The empirical findings suggest that perceived scarcity, bad mood, and changes in consumer preferences partially mediate the irrational changes in residential consumption behavior during a pandemic. Meanwhile, residents' positive perceptions of government pandemic prevention measures partially negatively moderated the generation of irrational consumer behavior during the pandemic. Thus, our study not only achieves interdisciplinary theoretical and methodological integration but also provides the government with a quantitative measure of the utility of COVID-19 management measures in mitigating irrational changes in residents' consumption behavior during a pandemic. Not only can we enrich the literature on irrational consumption behavior in related consumption behavior studies, but also provide theoretical, empirical, and practical case support for the Chinese government's response to control the irrational consumption behavior of the population under public health emergencies.
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Polyvinylidene Fluoride 진동센서를 이용한 코골이 검출
지덕근 ( Duk Keun Jee ),위연 ( Ran Wei ),김희선 ( Hee Sun Kim ),임재중 ( Jae Joong Im ) 한국감성과학회 2011 감성과학 Vol.14 No.3
Sleep diseases such as snoring and sleep apnea are physically, mentally harmful and results serious health problems. Snoring, known as breathing noise, is caused by coupled oscillation of the airway when the air passes through the trachea, and sleep apnea is caused by upper airway blockage. In order to solve these problems, many attempts have been made to detect the snoring during sleep and alleviate it. In this study, a new sensing system and analysis algorithm were developed in order to detect snoring sounds correctly under various sleep environments. Two polyvinylidene fluoride (PVDF) vibration sensors were used inside the pillow. The first PVDF sensor detects vibration transmitted through skull caused by snoring. And the second PVDF sensor detects both snoring sounds and ambient noises. The signals of two sensors were acquired through the designed analog circuits, and analyzed for snoring detection. Ten volunteers were participated for the experiment under five different conditions. Data from two PVDF sensors were processed by the established analysis algorithm, and snoring sounds were compared to noises. The results indicated that the energy of snoring is 70% bigger than that of ambient noise, which proves effectiveness of sensing system and analysis algorithm. Further study would be continued for more wide clinical studies with various environment noises. Based on this study, development of anti-snore pillow and sleep monitoring system for comfort sleep could be developed.
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지덕근 ( Duk Keun Jee ),위연 ( Ran Wei ),임재중 ( Jae Joong Im ),김희선 ( Hee Sun Kim ),김현정 ( Hyun Jeong Kim ) 한국감성과학회 2011 감성과학 Vol.14 No.4
In this study, the parameters of Polysomnography (PSG) test, such as total sleep time, snoring time, had been analyzed to evaluate the effectiveness of a developed anti-snore pillow. The developed anti-snore pillow is made up of two polyvinylidene fluoride (PVDF) vibration sensors, pumps, valves, and air bladders. The two PVDF sensors inside the pillow can acquire the sound signals and the algorithm was perfectly designed to extract snoring by removing unwanted noise accurately and automatically. Once the pillow recognizes snore, a pump inside the hardware activates, and a bladder under the neck area inside the pillow will be inflated. The PSG test was used and two volunteers were participated for the study. The parameters of the PSG results were analyzed to evaluate the effectiveness of the anti-snore pillow. The total sleep time of each volunteer was similar on each phase of test, but the snoring time and the longest snoring episode were significantly decreased with the use of anti-snore pillow. The overall results showed excellent possibilities for reducing snoring for the person who snores during sleep by using the anti-snore pillow. The effectiveness of the anti-snore pillow can be evaluated by the PSG test. Moreover, the relationship between each parameter of PSG test and the quality of sleep will be used for further researches.
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