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The purpose of this study is to examine the current status and contributing factors of the non-return of rental deposits. The 4QM theory and the leverage hypothesis confirm that the level of risk may vary depending on the type of housing. In addition, the current situation was identified by estimating the non-return of the rental deposit and the reverse jeonse phenomenon. As a result, it was found to be different according to the structural characteristics of each housing type. Apartments are houses with relatively high asset values; therefore the relationship between the sale price and the jeonse price was significant. By contrast, row and multi-family houses showed a significant relationship with the external capital Therefore, it is necessary to establish institutional measures to stabilize the the jeonse system. However, the existing system has limitations in reflecting the structural characteristics of different housing types and in addressing issues arising from reliance on external capital. Accordingly, policy measures are required to mitigate the structural vulnerabilities of the jeonse system.

As part of a strategic response to address the problems caused by population aging and urbanization, the World Health Organization recommends the creation of Age-Friendly Cities. This study examined the relationship between satisfaction with age-friendly urban environment elements for Aging in Place based on the 2023 Seoul Survey Urban Policy Indicators. Age groups were divided into young, middle-aged, and elderly groups, and generalized ordinal logistic regression analysis was used to analyze differences between groups. The results showed that environment, safety, and transportation were common factors affecting the intention to continue to reside in all groups among age-friendly urban environment factors. This is an empirical analysis result that shows that improving the physical environment has a positive effect on the intention to continue to reside in all age groups, suggesting the need for comprehensive urban planning to create an urban environment where all generations can continue to reside.

The South Korean coffee industry has seen rapid growth over the past two decades, becoming a key part of the nation’s food and beverage sector. In particular, the number of coffee shops in urban areas like Seoul has surged, reflecting the industry’s popularity among small business owners. Despite this expansion, empirical research on coffee shop survival remains limited, especially studies considering broader spatial conditions such as urban decline. This study examines how urban decline influences coffee shop survival in Seoul. Using administrative business license data, we analyze 1,745 coffee shops that newly opened during the single year of 2013, tracking their operational status through the end of 2019. Survival differences across neighborhoods are compared using Kaplan–Meier analysis, followed by a Cox proportional hazards model to explore spatial survival factors. Findings reveal that coffee shops in declining areas face significantly shorter survival durations and greater vulnerability to environmental pressures. Compared to restaurant-focused studies, coffee shops show greater spatial disparity in survival, highlighting the need to incorporate spatial vulnerability into small business policies and urban economic planning.

The Public Land Private Participation Development System was introduced in 2011 through the amendment of the “State Property Act,” but there have been no actual project implementation cases to date. This study analyzes the structural and operational issues of the system and derives applicable considerations by examining six successful private development cases led by local governments and public institutions. Furthermore, the study outlines five key directions for institutional improvement, conducts Focus Group Interviews (FGI) with relevant experts, and analyzes the importance of each improvement task using the Analytic Hierarchy Process (AHP) method. The analysis results identified the following as the most critical factors that need to be addressed to revitalize private participation development on state-owned land: applying flexible lease fees (e.g., lease fees linked to revenue), exempting lease fees during the construction period for private developers, sharing profits and risks through joint investment between the public and private sectors, reflecting the evaluation of creative public value enhancement proposals in the bidding process, and extending the lease period to a minimum of 50 years. The findings of this study will be utilized in the formulation of policies aimed at revitalizing private participation development on state-owned land.

Old industrial complexes are weakening due to aging infrastructure, population decline, and changes in industrial structure, which are leading to corporate work and living environment, employment issues, and decreased innovation capacity. This study aimed to develop sustainable development indicators for old industrial complexes from the perspective of linking old industrial complexes with surrounding and urban areas. The indicators were finally selected through expert Delphi analysis in three sectors, nine fields, and 42 detailed indicators. This study is significant in that it comprehensively considers population and society, industry and economy, and physical and environmental aspects for sustainable development of old industrial complexes, and suggests a direction for sustainable development by linking old industrial complexes with surrounding and urban areas. The final indicators can be used as basic data for establishing the direction of industrial complex regeneration projects based on the current status of old industrial complexes and surrounding and urban areas, and as a means for designating government old industrial complex regeneration project activation zones. In order to increase the applicability of sustainable development indicators for old industrial complexes in the future, importance studies and case studies that apply statistical data on industrial complexes and surrounding and urban areas are necessary.

This study developed a method for deriving a land use regulatory index that reflects the characteristics of restrictions on the behavior of regions and districts, applied it to derive an overlap index and a regulatory index for the case study area, and proposed a plan for future utilization. The results of the study are summarized as follows. First, a new methodology for measuring the intensity of land use regulations was presented. Second, a land use regulation index by parcel is presented based on the intensity of land use regulations in individual regions and districts. Third, we suggest ways for the central government and local governments to utilize the Land Use Regulation Index for policy purposes in the future. The Land Use Management Index will be useful for identifying the regulatory characteristics of the area, identifying areas and districts that need to be managed based on this, and continuously monitoring the designation and operation status. In addition, in the long term, the Land Use regulatory Index target for the target year can be set and various management measures can be prepared and applied to achieve it.

Urban hollowing-out, characterized by inner-city depopulation and functional decline, has increased vacant houses in Korean cities experiencing demographic transition. This study analyzes the structural linkages between urban hollowing-out and vacant housing in Gyeongsangnam-do Province using long-term demographic and housing data spanning two decades. Findings demonstrate a strong correlation between sustained population loss and long-term vacant houses, particularly in aging communities experiencing out-migration, forming a reinforcing feedback loop worsening urban decline. Based on typological classification of regional characteristics, tailored policy interventions including urban regeneration programs, spatial restructuring initiatives, and vacant house information systems are discussed. This research clarifies the structural link between urban decline and housing vacancies while offering evidence-based recommendations for sustainable urban revitalization amid demographic changes.