• Title/Summary/Keyword: regional choice

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Quinone-Diamine Adduct as a High Performance Resin for Coatings (퀴논-디아민 부가물계 고성능 도료용 수지)

  • Lee, Chi-Giu
    • Journal of the Korean Applied Science and Technology
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    • v.13 no.1
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    • pp.1-10
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    • 1996
  • We have prepared diamine-benzoquinone polymer which was known to excellent water proofing, high adhesion strength and good anti-corrosive effect, and have investigate with the possibility of application as a high performance resin for coatings. First of all, the reactivity of diamine-benzoquinone has been described an example of polymer reaction with research trend. The polymer reaction was divided into the polymerization with several diamine-benzoquinone and urethane group. The synthetic resin was shown a high solubility. In case of polymer containing urethane, water absorption content, water proofing and mechanical properties were controlled with the content, water proofing and mechanical properties were controlled with the content of quinone. It was shown that an use of choice was a possible result for various coatings. Diamine-quinone polymer can be used as a new resin for coatings. In addition, the polymer containing a functional group was shown a useful applicability as a high performance resin.

A Regional Comparative Study on the Commuter Mode Choice Behavior -Case of Seoul and llsan New Town- (출근통행 교통수단 선택행태의 지역간 비교연구 -서울과 일산신도시를 중심으로-)

  • 조중래;김채만
    • Journal of Korean Society of Transportation
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    • v.16 no.4
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    • pp.75-88
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    • 1998
  • 서울과 일산 신도시의 출근통행 교통수단 선택모형을 구축하고, 두 도시간 수단선택형태를 분석.비교하였다. 분석을 위한 자료로는 1996년 서울시에서 수행한 가구통행실태조사자료를 이용하였으며, 수단선택모형으로는 다항로짓모형을 사용하였다. 두 지역 출근통행 수단선택모형의 모형구조상의 차이 및 모형의 지역간 이전가능성을 분석하였고, 출근통행의 시간가치 및 탄력성을 분석하고 비교하였다. 통계적 검증의 결과 출근통행의 수단선택에 있어서, 모형구조적 측면에서나 선택행태적 측면에서 수단선택모형의 두 도시간 이전은 불가능한 것으로 나타났다. 서울의 출근통행의 시간가치가 일산보다 전반적으로 큰 것으로 분석되었고, 특히 서울의 경우, 택시이용자의 시간가치가 자가용 이용자의 시간가치보다 큰 것으로 나타났다. 두 도시 모두 통행시간에 대한 탄력성 통행비용에 대한 탄력성보다 전반적으로 크며, 버스와 지하철간의 통행시간에 대한 교차탄력성이 매유 높은 것으로 분석되었다.

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Benefits and Spillover Effects of Infrastructure: A Spatial Econometric Approach

  • Kim, Kijin;Lee, Junkyu;Albis, Manuel Leonard;Ang, Ricardo III B.
    • East Asian Economic Review
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    • v.25 no.1
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    • pp.3-31
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    • 2021
  • This paper estimates the effects of transport (road and rail) & energy and ICT infrastructure (telephone, mobile, and broadband) on GDP growths in neighboring countries as well as own countries. We confirm positive direct contributions of infrastructure, access to Internet, and human capital on economic growth. The spatial panel regression models indicate that there exist positive externalities of the broadband infrastructure and human capital, and these results are robust regardless of the choice of spatial weight matrices. Our findings on spillover effects of infrastructure suggest the key role of neighboring countries' infrastructure on own country's economic growth.

Asymmetric Terrorist Alliances: Strategic Choices of Militant Groups in Southeast Asia

  • Alexandrova, Iordanka
    • SUVANNABHUMI
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    • v.11 no.1
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    • pp.101-132
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    • 2019
  • Why do some local rebel groups choose to form asymmetric alliances with large transnational terrorist organizations? This paper examines asymmetric terrorist alliance patterns by studying the international ties of domestic insurgencies in Southeast Asia. It uses data from Indonesia, Malaysia, the Philippines, and Thailand to construct a theory defining the determinants of the choice of alliance strategies by terrorist groups. The findings conclude that rebels with limited aims prefer to act alone out of fear of entrapment. They are cautious of becoming associated with the struggle of transnational radical groups and provoking organized response from international and regional counterterrorism authorities. Local groups are more likely to seek alliance with an established movement when they have ambitious final objectives, challenging the core interests of the target state. In this case, the benefits of training and logistic support provided by an experienced organization outweigh the costs of becoming a target for coordinated counterterrorist campaign.

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A Suggestion for the Strategic Choice of Seoul to be a Network Center in Northeast Asia

  • Ahn, Kun-Hyuck;Ohn, Yeong-Te
    • Journal of the Korean Regional Science Association
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    • v.15 no.2
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    • pp.155-187
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    • 1999
  • The East Asian Region has experienced remarkable economic growth and transformation of interurban networking over the past three decades, and urban competiti veness for a networking hub in this region has become a critical issue confronting cities. Competitiveness of the Seoul capital region for a networking hub in Northeast Asia is outstripped by other competing cities in East Asia, notwithstanding its geo-politically and geo-economically advantageous location in this region. In this paper, we aim to appraise the Seoul capital region's competitiveness in terms of logistics distribution, financial function and logistics distribution, financial function and agglomeration of transnational corporations (especially of RHOs and other managerial functions), and to advance the networking strategies of the region for a Northeast Asia hyb. As a result of analysis, we suggest that the Seoul capital region be developed as a Northeast Asian center for regional headquarters or leading global corporations and financial services for being a strategic nodal point in Northeast Asia in the 21st century. A recent survey shows that where to locate an RHQ is influenced by various factors, such as potential market and manufacturing site in the city's hinterland, quality of life, such things as culture, health, safety, education, a well-educated, English-speaking population, reliable air transport, state-of-the-art communications, and an active policy to offer foreign companies generous incentives. The Seoul capital region, which is located at a strategic nodal point advantageous as a springboard for its Northeast Asian hinterland, cannot meet the other conditions mentioned above. To overcome these drawbacks in attracting transnational capital and to create competitiveness as a strategic hub of RHQs in Northeast Asia, it is urgent to initiate a structural reform of the Korean economy, politics, and overall society, to minimize the regulation of FDI, and to provide various incentives for foreign investment. Moreover, we propose the construction of an 'International Business Town' in the Seoul capital region, as a medium to intermediate these strategies and to shape them in a spatial scale. The projected 'International Business Town(IBT)' will be a 'free city' open to international business in which liberal economic activities are guaranteed by special legislation and administration, infrastructures needed for international and improved accessibility to the airport are furnished, and the preference of foreign high-income investors for cultural and living environment are satisfactorily met. IBT is conspicuously differentiated from a raft of other cities' incentives in that it combines deregulation and incentive programs to attract the investment of transnational capital, with a spatial program of offering an urban environment preferred by the high-income investors for cultural and living environment are satisfactorily met. IBT is conspicuously differentiated from a raft of other cities' incentives in that it combines deregulation and incentive programs to attract the investment of transnational capita, with a spatial program of offering an urban environment preferred by the high-income and managerial class. Furthermore, it can be an excellent way of overcoming the xenophobia that has spread among the Korean population by concentrating foreign businesses and their lifestyles in a specific foreign businesses and their lifestyles in a specific zone. In conclusion, 'International Business Town', in line with other legislative and administrative incentive programs, will function as a driving force to make the Seoul capital regional more competitive as a regional business hub in Northeast Asia.

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What Determines the Location of a Firm? - Focusing on the regional characteristics and agglomeration effect - (기업은 무엇으로 입지를 결정하는가? - 지역 특성과 집적 외부성을 중심으로 -)

  • Kim hee youn;Jung su yeon
    • Journal of the Korean Regional Science Association
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    • v.39 no.3
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    • pp.13-34
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    • 2023
  • Jeju is making multifaceted efforts to foster and attract businesses in order to increase its GRDP, which is only at the level of 1% nationwide. A firm's choice of location selection is such a significant decision that it can affect the growth of the firm. The concentration of firm locations in one region means that the characteristics of the region conduce to corporate profit maximization. Therefore, the analysis of the characteristics of regions preferred by firms and the reflection of the results thereof in policies for attracting firms will be helpful in inducing regional innovation and development. This study investigates the distribution of firm locations in Jeju, and analyzes the effects of regional characteristics on the determination of firm location by using the conditional logit model. The analysis results indicate that Jeju has various kinds of firms concentrated, regardless of the industry type, and a large economically active population in thinly populated areas. Additionally, firms in the knowledge-based industry tend to locate in areas where more firms in the same field are located in Jeju. This study is significant in that it is the basic analysis of the determinants of firm location in Jeju, which has never carried out, for the purpose of establishing policies for firm and industry promotion and local development in Jeju.

Exploring the Priorities of Housing Needs to Address Safety Inequality and Enhance Settlement Stability for Young Adults: Focusing on Regional Discrimination (Stigma) or Gender Difference (Deficiency Needs) (청년주거의 안전 불평등 해소 및 정주성 제고를 위한 주거 욕구 우선순위 탐색: 지역차별(낙인효과)과 성별(결핍욕구)을 중심으로)

  • Gim, Tae-Hyoung Tommy;Lee, Jiwon;Kim, Jiyeon
    • Journal of the Korean Regional Science Association
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    • v.40 no.3
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    • pp.3-21
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    • 2024
  • A safe residential environment enhances the quality of human life and promotes community development through self-actualization. It significantly affects regional stability by influencing the physical and psychological environment necessary to satisfy basic needs, providing a sense of security and alleviating anxiety. Safety is a major housing need; however, current housing policies tend to focus predominantly on housing supply. This emphasis limits the fulfillment of higher-level needs due to poor housing conditions and housing cost burdens faced by young households. Therefore, this study aims to identify areas affected by the stigma effect by analyzing the discrepancy between perceived crime risk and actual crime occurrence among single-person young households. The study compares these stigmatized areas with regions where the perceived crime risk is lower than the actual crime occurrence to identify differences in housing needs satisfaction and to prioritize policy interventions. Additionally, the study examines differences in housing needs satisfaction and importance based on gender to inform policy priorities. By considering the stigma effect on regional housing needs and gender-specific deficiencies, this study provides significant policy implications.

Transfer Impedence of Trip Chain with a Railway Mode Embedded - Using Seoul Metroplitan Transportation Card Data - (철도수단이 내재된 통행사슬의 환승저항 추정방안 - 수도권 교통카드자료를 활용하여 -)

  • Lee, Mee young;Sohn, Jhieon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.36 no.6
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    • pp.1083-1091
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    • 2016
  • This research uses public transportation card data to analyze the inter-regional transfer times, transfer frequencies, and transfer resistance that passengers experience during transit amongst the metropolitan public transportation modes. Currently, mode transfers between bus and rail are recorded up to five times during one transit movement by Trip Chain, facilitating greater comprehension of intermodal movements. However, lack of information on what arises during these transfers poses a problem in that it leads to an underestimation of transfer resistances on the Trip Chain. As such, a path choice model that reflects passenger movements during transit activities is created, which attains explanatory power on transfer resistance through its inclusion of transfer times and frequencies. The methodology adopted in this research is to first conceptualize the idea of metropolitan public transportation transfer, and in the case that mode transfers include the city-rail, to newly conceptualize the idea of transfer resistance using transportation card data. Also, the city-rail path choice model within the Trip Chain is constructed, with transfer time and frequency used to reevaluate transfer resistance. Further, in order to align bus and city-rail station administrative level small-zone coordinates to state and regional level mid-zone coordinates, the big node methdod is utilized. Finally, case studies on trip chains using at least one transfer onto the city-rail is used to determine the validity of the results obtained.

A Study on Regionalization of Telemedicine in Japan : A Case of the Kagawa Prefecture (일본 원격진료의 지역화 형성 및 특성에 관한 연구 : 카가와현(香川県)을 통한 지방의 원격진료 사례를 중심으로)

  • Park, Soo-Kyung
    • Journal of the Korean Geographical Society
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    • v.46 no.4
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    • pp.501-517
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    • 2011
  • This research investigates a geographical issue as to which factor discovered in the only Japanese telemedicine with regard to social and medical circumstances performs a role as a determinant in regionalization, especially, local areas in Japan. According to the results, strong human networks based on regionalism are mirrored in regionalization and are associated with not only the development and management of telemedicine operations, but also the choice of telemedicine users concretely. In other words, all processes from the suggestion stage of telemedicine to the practical usage or application stage of telemedicine are involved in the existing human networks within one prefecture (the third diagnostic area); further, personal stakes are transferred to public health care services (telemedicine) and their relationships have been formulated by the telemedicine council including local government, medical association, region-rooted companies, core health centers and universities, etc. Accordingly, the telemedicine council responses to the need of telemedicine users immediately and contributes to develop regional health care. Also, telemedicine users have been connected with each other closely before operating telemedicine; accordingly, the human relationships between doctors and patients or among doctors influence the choice of telemedicine serving sites and their behaviors comes down to regional-based diagnosis via the telemedicine system.

A Study on the Feasibility to Digitalize of cadastral maps of North Korea (북한 지역 지적측량원도 디지털화의 편익추정)

  • Lee, Young-Sung;Moon, Heong-Ahn;Kim, Kab-Sung;Kim, Min-Jae
    • Journal of the Korean Regional Science Association
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    • v.32 no.2
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    • pp.3-13
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    • 2016
  • This study is to analyze the feasibility of a project to digitalize the originals of cadastral maps of North Korea, a total of 299,688 sheets archived in South Korea's National Archives. The cost-benefit analysis is limited on the digitalization of the original cadastral maps of lands, woods and fields, information analysis on land attributes and platform construction, and the benefit analyses are divided into divided territory ones, namely intrinsic value, heritage value, direct and indirect utility value, military and strategic value and the foundation for inter-Korean unification, and post-unification ones such as the confirmation of ownerships, control of social conflicts, reconnection of family lines, arrangement of lot numbers, cadastral management and urban planning. Such benefits are estimated through the double-bound dichotomous choice of the contingent valuation method (CVM). The scenarios show that benefit in the divided territory is expected to reach 586.8billion won in the current value. The amount was calculated from the payable amount (7,925won) multiplied by the whole number of households. The post-unification benefit is estimated at 324.3billion to 594.1billion won as the payable amount (8,023won) is multiplied by the whole number of households.