Temporal and Spatial Impacts of Land Transfer on PM2.5 Concentration in 285 Cities of China

The threat of fine particulate matter concentration (PM2.5) is increasing globally, Tackling this issue requires an accurate understanding of its trends and drivers. The article investigates the PM2.5 characteristics of 285 prefecture-level cities in China from 2000-2018 based on multiscale geographically weighted regression(MGWR), and the results show that（1）previous studies based on classical MGWR models may be somewhat unstable, while MGWR can reflect the scale of influence of different variables on the dependent variable, and its regression results are more reliable.（2）PM2.5 is very sensitive to carbon emission(CE) factors, and there is a high degree of spatial heterogeneity, and the influence scale of location is the smallest among all variables, close to the municipal scale.（3）In 2000, the constant term all, IS, OFT, CE, and LT positively affect PM2.5, while GDP (jurisdiction) and UR negatively affect PM2.5; in 2010, the constant term all, GDP (jurisdiction), IS, OFT and LT positively affect PM2.5, while UR and CE negatively affect PM2.5; in 2018 the constant term all, IS, OFT and CE factors positively affect PM2.5, and GDP (jurisdiction), UR and LT negatively affect PM2.5.

Socio-spatial impact of slum dwellers relocation in Algiers: a flow analysis using QGIS

Since 2014, we have witnessed an acceleration of the pace of massive relocation operations in Algerian cities, particularly in the capital, with the ambition of making the city of Algiers the first African capital without slums. This article presents an evaluation of the relocation operations carried out during the period from 2014 to 2016. The objective is to identify the socio-spatial impacts of massive relocation on the province of Algiers and the neighboring cities. For this purpose, we adopted a method based on the flow analysis of slum dwellers relocated with the data visualization technique, widely used in GIS. The results show that a large number of inhabitants were relocated in a relatively short time and that there was a random distribution of slum dwellers from the capital to communes within or outside its administrative boundaries, with negative impacts on socio-spatial transformations of Algiers.

Short-term rentals as a new urban frontier – evidence from European cities

Papers in this special issue offer a wide range of political economy and sociological perspectives to explain the development and impacts of short-term rentals (STRs) in European cities. Empirically, they provide insights regarding STR providers, socio-spatial impacts, and regulation. Authors reveal the professionalization of the sector vis-à-vis the connection between STRs and the wider financialization of housing. STRs are predominantly supplied by professional property managers as well as by middle-class individuals for which renting on digital platforms is their main professional activity. Furthermore, the increasing professionalization of hosts and the intrinsic competition among them is largely stimulated by the business model of digital platforms which has progressively favoured professional operators. Understanding how STRs are shaped by platform capitalism helps to explain the socio-spatial impacts of this market as well as why current regulations have not mitigated such impacts. In terms of impacts, contributions to this special issue document processes of displacement, gentrification, and how the penetration of visitors in neighbourhoods is experienced by residents as a process of loss and dispossession. However, due to the lobbying campaigns of professional operators and industry players, regulation has led to the legitimization of this new market rather than to the limitation of the activity. Therefore, the special issue challenges the use of a ‘sharing economy' and ‘peer-to-peer platforms’ as analytical categories, and, instead, provides evidence of why the STR market should be seen as part of the wider expansion of platform capitalism, consolidating the neoliberal and financialized urban paradigm.

Industrial Infrastructure: Translocal Planning for Global Production in Ethiopia and Argentina

Current development and re-development of industrial areas cannot be adequately understood without taking into account the organisational structures and logistics of commodity production on a planetary scale. Global production networks contribute not only to the reconfiguration of urban spatial and economic structures in many places, but they also give rise to novel transnational actor constellations, thus reconfiguring planning processes. This article explores such constellations and their urban outcomes by investigating two current cases of industrial development linked with multilateral transport-infrastructure provisioning in Ethiopia and Argentina. In both cases, international partners are involved, in particular with stakeholders based in China playing significant roles. In Mekelle, Ethiopia, we focus on the establishment of a commodity hub through the implementation of new industry parks for global garment production and road and rail connections to international seaports. In the Rosario metropolitan area in Argentina, major cargo rail and port facilities are under development to expand the country’s most important ports for soybean export. By mapping the physical architectures of the industrial and infrastructure complexes and their urban contexts and tracing the translocal actor constellations involved in infrastructure provisioning and operation, we analyse the spatial impacts of the projects as well as the related implications for planning governance. The article contributes to emergent scholarship and theorisations of urban infrastructure and global production networks, as well as policy mobility and the transnational constitution of planning knowledge and practices.