• Title/Summary/Keyword: Difference-in-Differences(DID)

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Gender Differences in Entrepreneurship: The Impact of Social Context (기업가정신의 성별 차이: 사회적 맥락의 영향)

  • Choo, Seungyoup
    • Journal of Digital Convergence
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    • v.19 no.10
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    • pp.119-132
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    • 2021
  • This study focused on examining the impact of the social context that causes gender differences in entrepreneurship, not the phenomenon itself. Specifically, this study verified the moderating effect of the social context on the relationship between gender and entrepreneurship using data from 20 countries in the Global Entrepreneurship Trend Report (GETR). In order to test hypotheses involving social context implications, Hofstede's cultural dimension factors such as power distance, individualism, masculinity, and uncertainty avoidance variables, and institutional factors such as gender equality and social security are used as specific variables reflecting the social context. Empirical analysis through GLM found that gender did not independently influence entrepreneurship, and gender had a significant effect by interacting with power distance, individualism, uncertainty avoidance, gender equality, and social security variables, respectively. Such empirical results show that the gender difference in entrepreneurship is not due to the unique characteristics inherent in each gender but on the level of the country's social context to which the individual belongs.

The Impact of Industrial Clusters' Quality on the Production Resilience in the Global Crisis (글로벌 위기에서 산업 클러스터의 품질이 생산 탄력성에 미치는 영향)

  • Cho, Young Ju;Lee, Chang-geun;Yoo, Jun-Young;Kim, So-Young;Park, Hee-Jun
    • Journal of Korean Society for Quality Management
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    • v.52 no.2
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    • pp.287-301
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    • 2024
  • Purpose: This paper aims to verify the difference in production resilience between local clusters and regions without clusters before and after a major crisis. Furthermore, this paper aims to identify the clusters' quality factors that impact clusters' shock vulnerability and resilience. Methods: Utilizing open-source data from the US Cluster Mapping platform, this paper compares regions with industrial clusters to those without using the Differences-in-Differences (DID) estimator. It considers the regions with industrial clusters as a treatment group and others as the control group, comparing the period before and after the pandemic. Additionally, the paper examines which cluster factors make a difference in economic resilience during the crisis using Regression Discontinuity Design (RDD). Results: The study finds that regions with industrial clusters show higher production resilience compared to regions without clusters. Moreover, the number of establishments, annual payrolls, and employment can have a positive impact on resilience during the pandemic shock. Conclusion: Though clusters could be vulnerable during the global crisis, industrial clusters can contribute to regional economic development and production resilience in the long-term aspect. Thus, it is required to construct a high-quality local cluster and support it during the economic crisis in the long-term aspect.

A Study on Sexual Knowledge, Attitude, and Experience in College Students (일부대학생들의 성에 대한 지식, 태도 및 성경험에 관한 조사연구)

  • Nam, Myung-Hee
    • Research in Community and Public Health Nursing
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    • v.10 no.1
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    • pp.239-251
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    • 1999
  • The purpose of this survey is to measure the sexual knowledge, attitude, and experience in college students in order to provide better sex education programs and direction. For this study, questionnaires were given to 259 students in K college of Kyongnam and collected during the period of June 1 to June 20, 1998. Data was analyzed using a statistical computer package: SPSS to manipulate the data along with frequency, mean, t-test, F-test and Pearson correlation coeffiency. The results from this study were summarized as follows: 1. Sex related knowledge marked 12.01 at a maximum level of 25. In the areas of Sex physiology(51.8%), genital physiology(49.9%), venereal diseases(44.3%) and contraceptive methods (38.1%), students were shown to have certain levels of knowledge. 2. Sex related attitudes marked 15.35 at a maximum level of 35. The most frank attitudes concerned 'premartial coitus in males' and the most conservative attitudes concerned 'extramarital coitus in females'. 3. Concerning sexual behavior 80.7% of the respondents had associated with the opposite sex. The most frequent behaviors were walking arm in arm (male : 28.6%, female: 36.2%). Their main problems were relationships with the opposite sex(male : 39.2%, female: 24.5%), frustrated sexual desire(male : 26.0%, female: 9.8%) and unwanted pregnacy(male: 15.2%, female: 7.8%) To solve sex problems, respondents intended to consult their friends(male : 35.7%, female: 46. 7%) and become active in sports or recreation (male: 23.4%, female: 11.4%). About 81.2% of male students had a masturbation experience, but only 11.4% of female did, 40.0% of male students had a sexual intercourse experience, but only 13.3% of females did, 7.8% of male students used contraceptive methods, but only 2.9% of females did. 12.3% of male students had a rape experience, but only 10.5% of females did. The proportion of male students who made someone pregnant was 12.3%,however pregnant female were only 6.8% and the proportion of male students who forced someone to have an abortion was 12.3%, females who experienced an abortion were only 5.7%. 4. Regarding genital physiology, there was a statistically significant differences in gender ( t = -7.342, p=0.000). Regarding contraceptive methods, there was a statistically significant difference in the father's education level(F= 2.421, p=0.036) 5. In sexual attitudes, there were statistically significant differences in gender( t = 4.456, p = 0.000), religion(F=4.315, p=0.000), high school(F=3.150, p=0.045), habitation form(F= 3.164, p=0.0025 and methods of acquiring sexual knowledge(F=2.990, p=0.012). 6. The variables regarding sexual experience were gender, high school, economic status, habitation form, method of acquiring sexual knowledge, and parental attitudes toward sex. From the result of the study, sex education is required and must be taught as a regular course in the curriculum of all Korean schools at all levels.

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Difference in Bakery Choice Attributes according to Consumers' Characteristics and Purchasing Behavior (베이커리 소비자의 특성 및 구매행동에 따른 선택속성 차이)

  • Ryu, Si-Hyun;Kim, Sung-Ok;Seok, Seung-Yeon
    • Journal of the Korean Society of Food Culture
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    • v.26 no.6
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    • pp.673-681
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    • 2011
  • The purpose of this study was to analyze the difference in bakery choice attributes according to consumers' general characteristics and purchasing behavior. Among 350 questionnaires distributed to bakery consumers, 277 complete questionnaires (79.1%) were analyzed. Bakery choice attributes were classified into five factors: "environment and image", "bakery product features", "location", "employee service", and "price and sales promotion"; the mean scores of these factors' importance levels were 3.59, 3.58, 3.49, 3.36, and 3.00, respectively. Males considered 'employee service' factor significantly more than did females. Further, the importance level of 'employee service' factor was significantly greater as consumer's age increased. The importance levels of 'bakery product features' and 'employee service' factors were considered significantly more by consumers who spent KRW10,000-15,000 than those who spent KRW5,000 or less. 'Price and sales promotion' was considered to be more important by consumers who obtained information from the Internet than from the TV and radio. 'Location' factor was considered to be more significant as purchasing frequency increased. Such differences in importance level of bakery choice attributes according to consumers' gender, age, job, and purchasing behavior should be considered and applied to the development of marketing strategies targeted at consumers.

Analysis on the Rental Housing Service Preferences according to Social Relationship (사회적 관계 유형별 임대주택 서비스 선호특성 분석)

  • Jung, Su-Jin;Han, Jeong-Won
    • Journal of the Korean housing association
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    • v.27 no.6
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    • pp.113-124
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    • 2016
  • The purpose of this study is to analyze characteristics of rental housing management and service preference according to social relationship types. The data for the analysis was collected through questionnaire survey method from 12th, April to 4th, May, 2016 and 565 data were finally used. Data were statistically analyzed using SPSS WIN 18.0. The findings of this study are as follows: 1) the six factors on social relations of subjects are made up as 'interpersonal stress of the relationship', 'new relationship', 'neighbor relations', 'online relationship', 'family relations', and 'friendship'. 2) Along with this result, cluster analysis was carried out, and four social relation types are classified and named as the 'extroverted relationship type', 'passive relationship type', 'active relationship type' and 'introverted relationship type'. 3) Rental housing management and service was examined separately as 'housing management system', 'housing services', and 'community facilities'. Differences in preference were identified by type of social relationship. Housing services and community facilities showed a significant difference in almost all items. In the housing management system, most of the items did not show any significant difference according to social relationship types.

Differences in Preference Depending on Signal Explicitness when Selecting Fashion Luxury Brand - The Moderating Effects of Self-Construal and Implicit Theory - (패션 명품 선택 시 로고 명확성에 따른 선호도 차이 - 자아해석과 암묵적 이론 유형의 조절 효과를 중심으로 -)

  • Suh, Min-Jeong;Hwang, Sun-Jin;Yeo, Jun-Sang
    • Journal of the Korean Society of Costume
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    • v.66 no.1
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    • pp.13-27
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    • 2016
  • There are differences in preference according to the brand signal explicitness when selecting fashion luxury brand, and the purpose of this study is to verify the moderating effects of self-construal and implicit theory in relation to those preferences. This study divided the experiment design into two $2{\times}2$ mixed design studies: Study 1 and Study 2. The study 1 was composed of the following factors: brand signal explicitness(subtle vs. explicit signal) and self-construal(independent vs. interdependent self-construal). Study 2 was composed of the following factors: brand signal explicitness( subtle vs. explicit signal) and Implicit theory(entity vs. incremental theorist). Convenience sampling was conducted to find the subjects of study 1 and study 2. Study 1 analyzed data from 172 women in Seoul, Gyeonggi-do and Busan who prefer luxury brand, and study 2 used data from 138 women. The results of this study are as follows. 1) Independent self-construal primed group was shown to prefer subtle signal product to explicit signal product, whereas interdependent self-construal priming group preferred explicit signal product to subtle signal product. 2) The entity theorist to prefer explicit signal product to subtle signal product. On the other hand, the incremental theorist did not show significant difference in the preference between subtle and explicit signal products. Therefore, the results of the present study shown the importance of understanding consumers through the difference depending on consumer inclination and psychology, recommending preferred luxury brand according to the inclination of the target customers, and establishing segmented marketing strategy to captivate consumers with these various characteristics.

Difference of Suaeda japonica Populations from two Different Habitats in Sorae, Incheon, Korea (인천 소래 간석지내 두개의 칠면초 ( Suadeda japonica ) 개체군간의 차이에 관하여)

  • Lee, Kun-Seop;Oh, Kye-Chil
    • The Korean Journal of Ecology
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    • v.12 no.3
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    • pp.133-144
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    • 1989
  • The morphology and flowering time of two Suaeda japonica populations from different habitats, the creek and the bank of the mudflat in Sorae, were surveyed. And standard transplantation and reciprocal transplantation were carried out to determine whether their characteristics were genetically fixed or not. Also soil sample of these habitats were analyzed. The amounts of loss on ignition, maximum field capacity, total nitrogen, exchangeable calcium and potassium, and soluble phosphorus were found to be significantly different between two habitats. Leaf thickness, leaf width, leaf length, stem height number of branches, and number of seeds were significantly different between plants of two populations. And flowering times of two populations did not overlap. According to the results of transplantation, leaf width, leaf thickness, and flowering times were the same as those at their original habitat. But the stem lenght, leaf lenght, number of branches and unmber of seeds were not. Therefore, the differences in the leaf length, leaf thickness, and flowering time seemed to bo genetically fixed. It were suggested that the creek bank populations of Suaeda japoinica were to be considered as different ecotypes.

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Factors Predicting Development of Decubitus ulcers among Patients Admitted for Neurological Problems (욕창발생 예측 요인에 관한 연구)

  • 송미순;최경숙
    • Journal of Korean Academy of Nursing
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    • v.21 no.1
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    • pp.16-26
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    • 1991
  • In this prospective study, factors contributing to the development of decubitus ulcers were examined. Factors were identified by a literature review and a conceptual framework was developed. Regular observations were made during the subjects' hospitalization to determine the incidence of decubitus ulcers, and to assess other decubitus ulcer risk factors. Seventeen out of 146 admitted for neurological problems patients developed decubitus ulcers during the three month study period. There were no significant differences in the level of serum albumin, hemoglobin or age between those who developed decubitus ulcers and those who did not. There also was no difference in incidence between patient who were paralyzed and those not paralyzed. Mean hospitalization days until decubitus ulcer development was 6.5 days. According to the results of discriminant analysis, four factors -1) friction and shear, 2) sensory perceptual impairment, 3) low diastolic pressure, and 4) multiple use of sedative medications - predicted 84.93% of decubitus ulcer Incidence.

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The Attitudes toward Divorce of Young Men and Women (청년 남녀의 이혼에 대한 태도)

  • 김성희
    • Journal of Families and Better Life
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    • v.21 no.2
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    • pp.75-85
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    • 2003
  • The purpose of this study was to investigate the attitudes toward divorce of young men and women. The data were collected by questionnaire from 425 respondents who resided in Sunchon. Statistical methods for the data analysis were frequencies, one-way ANOVA, t-test. The data analysis revealed that the young men and women accepted divorce as an alternative to unhappy marriage and there were significant gender differences in the attitudes toward divorce. Women accepted divorce more positively as an alternative than men in every conditions. Men accepted divorce remarkably as an alternative to unfaithful debauchery of spouse, but women accepted divorce extremely well as an alternative to wrongdoing of spouse. Most of young men and women were worried about children, but not a few of them did not perceived themselves as child rearer. This results showed that divorce will be increased and perceived differently by gender. The young men and women who had lower conservative familism, who were younger, and who had higher education responded more positively about divorce.

Early Life History Characteristics of an Induced Hybrid of Rhodeus ocellatus and Acheilognathus yamatsutae (흰줄납줄개(Rhodeus ocellatus)와 줄납자루(Acheilognathus yamatsutae) 잡종의 초기생활사 특징)

  • Park, Jae-Min;Han, Kyeong-Ho
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.2
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    • pp.137-145
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    • 2022
  • This study was conducted to identify the taxonomic differences in the characteristics of Rhodeus ocellatus and Acheilognathus yamatsutae during their early life history via an interspecific hybridization experiment. Results showed that the hatching rates of the cross-bred eggs were 60% for cross OY (R. ocellatus ♀×A. yamatsutae ♂) and 70% for cross YO (A. yamatsutae ♀×R. ocellatus ♂). The dorsal fin rays of YO were similar to those of R. ocellatus. The hybridization test of A. yamatsutae and R. ocellatus living in the same water stream revealed that no interspecies reproductive isolation occurred. OY and YO showed similar maternal and paternal characteristic. The juvenile of OY did not resemble both paternal and maternal fin rays, indicating a difference. The hatching larvae of the hybrids showed the morphological characteristics of their parents but varied in terms of the shapes of their parts.