Housing affordability is a long-held issue in Malaysia, and housing policies have been implemented for low-income households over the years. However, there is a contradiction that housing affordability of low-income households has not been met, while the bulk of affordable housing is still vacant. In 2019, Malaysia enacted the National Affordable Housing Policy (DRMM) which was intended to improve housing affordability for low-income groups. This paper aims to answer why Malaysia’s long-term implementation of affordable housing policies cannot guarantee housing affordability, and whether the DRMM can effectively improve housing affordability as expected, by comparing the empirical factors of housing affordability. A literature review and a comparative analysis are adopted in the research. The paper concludes that low household income, high land price, construction cost and compliance cost, mismatch of supply and demand in terms of quantity, the instability of the national economy, low home financing ability, and incomprehensive housing planning have caused low housing affordability of low-income groups in Malaysia. The DRMM as anticipated can improve housing affordability by supplying affordable housing more precisely, lowering housing costs, and improving home financing ability. However, the exclusion of household income and economic factors may cause the ineffectiveness of the DRMM in improving housing affordability for low-income households.

Sustainable agriculture has been proposed by the United Nations as a key indicator of the Sustainable Development Goals (SDGs). It presents diverse features and rich connotations in the transformation towards modernization. However, for a long time in China, transformations of agricultural modernization have not been the concern of spatial planning, nor the emerging land use requirements of agricultural modernization under the trends of urban–rural integration, such as the application of modern technologies for the mechanization of agricultural production, the coexistence of multiple forms of business entities with agricultural enterprises as the main body, the extension of the industrial chain from the primary to the secondary and the tertiary, and the concentration of industrial spaces, as well as specific land use due to those transformations. This paper constructs an analytical framework of “business entity, business model, production technology, and production space” based on the literature studies and selects eight representative agricultural cases from Beijing, Zhejiang, and Yunnan to conduct field investigations and case studies to reveal the transformative aspects of agricultural modernization in China and its land use requirements, enriching the understanding of modern agriculture from the perspective of spatial planning. This study finds that the transformation of agricultural modernization has generated new requirements for the construction of necessary production facilities, but these requirements cannot be met in terms of land use due to the constraints imposed by China’s current land use regulations. The paper advocates for the development of agricultural parks, the optimization of land use regulations, and the allocation of agricultural land use in spatial planning in line with the trends of agricultural modernization, thus supporting the sustainable development of agriculture.

Reducing carbon emissions from daily travel has become an important goal of 15-minute living-circle planning, yet it remains unclear which facility configurations are most supportive of green travel. Using 634 living circles and 20 million mobile-phone travel records and point-of-interest (POI) data, this study examines how facility layout within a 15-minute cycling circle influences residents’ walking and cycling travel behavior. Extreme Gradient Boosting (XGBoost) models and Shapley Additive Explanations (SHAP) suggest that low accessibility is generally associated with lower green travel shares, while moderate facility density promotes green travel, yet for some facility types, high density may show diminishing marginal benefits. Vegetable markets and primary schools emerge as key facilities, with education facilities driven mainly by accessibility, entertainment facilities by density, and commercial and healthcare facilities by both. K-means clustering identifies three types of low-green-travel-performing living circles—characterized by low density and poor accessibility—concentrated in peripheral and newly developed areas. The methodology is transferable, and the derived numerical ranges and living-circle typologies offer context-specific implications for Tangshan, and identified differences in facility importance and diminishing marginal benefits enrich 15-minute city theory.

Since their birth in the 1990s, social enterprises, as a kind of third-party organization with the attributes of both a not-for-profit entity and a profit-making enterprise, have played a significant role in the socio-economic development of cities, in particular those facing the challenge of shrinking. But why are social enterprises so deeply embedded in the regeneration process of shrinking cities, and how do they promote their multi-dimensional revitalization? In order to answer these questions, this paper presents a case study on Shimizusawa in Japan based on a literature review and field research. In line with the embeddedness and institution–function–instrument theories, it reviews the revitalization of Shimizusawa by involving a social enterprise in the adaptive reuse of industrial heritage sites and the development of industrial tourism, analyzes the establishment process and organizational characteristics of this social enterprise, and summarizes the four major experiences of its practice—that is, the governance structure of two types of institutions and two types of functions, the planning for both profitable and non-profitable activities, the operation of both for-profit and not-for-profit businesses, and the fund management of leveraging multiple parties to raise funds and reinvesting the profits locally. The extensive support provided by the Shimizusawa Social Enterprise that creates not only economic value but also social value justifies the significant role of social enterprises in the revitalization of shrinking industrial areas. This case study, together with its analytical framework, may serve as a meaningful reference for the revitalization of shrinking industrial areas in other parts of the world.