What drives the spatial wage premium in formal and informal labor markets? The case of Ecuador

This article investigates the incidence of agglomeration externalities in Ecuador, a small-sized, middle-income developing country. In particular, we analyze the role of the informal sector within these relations, since informal employment accounts for a significant part of total employment in the developing countries. Using individual level data and instrumental variable techniques, we investigate the impact of spatial externalities, in terms of population density, local specialization and urban size, on the wages of workers in Ecuadorian cities. The results show that spatial externalities matter also for a small developing country. Moreover, analysis of the interaction between spatial externalities and informality shows that, on average, workers employed in the informal sector do not enjoy significant benefits from agglomeration externalities. Finally, by investigating the possible channels behind spatial agglomeration gains we show that the advantages from agglomeration for formal sector workers may well be accounted for by better job-quality matches and, to a lesser extent, by learning externalities. For informal sector workers, our findings also suggest possible gains from job changes, which offset a penalty for remaining employed in the same occupation.     

Where cities fail to triumph: The impact of urban location and local collaboration on innovation in Norway

The role of cities in fostering innovation has for long been taken for granted. Agglomeration and the knowledge spillovers generated in dense urban environments have been considered fundamental drivers of innovation. This view has, however, become challenged by research questioning the returns to physical agglomeration and local networking, placing instead more emphasis on the importance of interregional and international collaboration, and on innovation in peripheral regions. This paper delves into the debate on the role of cities for innovation by examining the interplay between urban location and local collaboration in Norway. It uses data from the Community Innovation Survey for 2006–2010 to map out the geographical dimension of R&D collaboration in Norwegian firms with a view to assessing whether different types of R&D collaboration in urban and rural locations affect firms’ propensity to innovate. The results show that local collaboration is associated with increased process and organisational innovation, while it does not produce higher levels of product or marketing innovation. Conversely, international collaboration is connected with higher probabilities of product, new-to-market and marketing innovations. Furthermore, location in urban or rural areas makes no difference for most innovation outcomes in Norway when other characteristics are controlled for. Location in cities also does not shape the returns to local R&D collaboration. Hence, the role of cities for innovation in Norway, whether in themselves or as sites for dense local interaction, is less relevant than the urban innovation literature would predict.     

Transport corridors and their wider economic benefits: A quantitative review of the literature

Transport corridors can generate both wider economic benefits (WEBs) and costs through their effects on diverse development outcomes. To advance understanding of how corridors could generate WEBs, this paper undertakes a quantitative review and meta-analysis of the literature that estimates the impacts of large transport infrastructure projects. The analysis finds that characteristics of individual studies and the design of the transport infrastructure influence estimated benefits. It also shows that, on average, while corridor interventions tend to benefit economic welfare and equity, they often detrimentally impact the environment. To mitigate trade-offs, policymakers can consider using complementary interventions.     

Bruit aérien et équité environnementale dans les quatre plus grandes métropoles canadiennes

Previous environmental equity studies have examined the spatial distribution of aircraft noise across cities. Their findings show that, in several cities, visible minorities and low-income populations are most affected by aircraft noise. In contrast, one study concludes that well-off populations are the most affected. These contradictory findings support the use of a comparative approach for several cities. The aim of this study is twofold. First, we want to identify if there are groups in the population that are in a situation of inequity to aircraft noise exposure in Toronto, Montréal, Vancouver, and Calgary. Then, we want to check if the exposure to the aircraft noise of the different groups varies significantly from one metropolis to another. We use the recommended noise exposure contour maps in Canada: the Noise Exposure Forecasts. Next, four variables are extracted from the 2016 Statistics Canada census at a fine-scale level (dissemination areas): that is, the percentages of low-income, visible minorities, 0- to 15-year-old, and 65-year-old and over populations. The results of a mixed effects logistic regression model show that environmental inequities in terms of exposure to aircraft noise for the four population groups are not consistent from city to city.     

A first note on the excavations at UAQ38, a new Neolithic site in the Emirate of Umm al-Quwain

At the end of 2018, the first season of excavation was carried out at the shell midden site of UAQ38. The site occupies the top of a sand dune not far from UAQ36 and UAQ2, two other recently investigated Neolithic shell middens. Several well-stratified anthropogenic levels were excavated at UAQ38, which can be dated mainly to the 5th millennium BC, although the recorded artefacts suggest a possible older date for the lowest levels. Food waste, post-holes, fireplaces, and burnt shell dumpings attest to human activities that took place at the site over a rather long period of time. Here the stratigraphic sequence will be presented, together with a first overview of the artefactual assemblage. The collected data will be concisely discussed in order to fit the site within the typology of Neolithic settlements that can be proposed for the area. UAQ38 is so far the only Neolithic site along the northeastern coast of the UAE for which stratified charcoal is available for dating.     

Sharks in the lagoon? Fishing exploitation at the Neolithic site of Suwayh 1 (Ash Sharqiyah region,Arabian Sea,Sultanate of Oman)

The study of the fish bones from the Neolithic shell midden of Suwayh 1, excavated in the 2000s, identified a total of 1060 identifiable fish bones, from 23 families, 33 genera and 28 different species. Radiocarbon dating demonstrates that the sites date to the early 6th to mid 5th millennium BC. The results follow an eight-phase chronology highlighted by an earlier malacological study. The most important taxa were the Carcharhinidae (requiem shark), Rhinopteridae (cownose rays), Sparoidea (Sparidae and Lethrinidae: sea breams and emperors) and Ariidae (sea catfishes). The results of the fish study show that the Suwayh lagoon must have gradually opened up to the sea and been populated with mangroves. The unique presence of so many sharks at this site seems to indicate that the inhabitants had a special interest in shark fishing and that their location was ideal for this specialised activity. Two types of fishing nets and hooks have been discovered, which require the use of different fishing techniques.     

Excavations at MR11 on Marawah Island (Abu Dhabi,UAE): new insight into the architecture and planning of Arabian Neolithic settlements and early evidence for pearling

In 1992, an archaeological survey of Marawah Island conducted by the Abu Dhabi Islands Archaeological Survey identified two significant Neolithic settlements known as MR1 and MR11. Both sites are constructed on prominent rocky platforms located towards the western end of the island. In 2000 and 2003, small-scale excavations took place at MR11, with the first full excavation taking place in 2004. Excavations continued at MR11 between 2014 up to 2019. Radiocarbon dating demonstrates that the site was occupied between the earliest part of the sixth millennium to the mid-fifth millennium BC. Three areas have been so far examined. Area A—a tripartite house (2004 and 2014–2017 excavation seasons); Area B—a partial structure (in 2003 and 2017–2018); and Area C—a series of at least five rooms (in 2017–2019). The results provide a valuable new insight into the architecture and planning of Arabian Neolithic settlements in the region, as well as the earliest known evidence for pearling.     

Children and Print Visual Culture During the Chilean Popular Unity Government

This article analyses the visual figuration of children during the Chilean Popular Unity government (1970–1973) in a diverse archive of photographs, posters, album covers, magazines, and comics. First, it reads the realist representation of children in photography, which emphasises the dramatics of poverty as a form of establishing a photographic “civil contract” (Azoulay, The Civil Contract of Photography, 2008). Second, it interprets posters and texts concerning the Allende government’s Plan de Leche (Milk Plan) as an affirmative biopolitics. It concludes by showing that the children on illustrated posters are the idealised version of childhood projected by adults as a way of imagining a coming community.