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Abstract The increasing dependence on street vending as a source of livelihood for people across urban spaces in countries like Cambodia and India continues to promote exciting areas of research in social sciences. Our study captures the narratives of street vendors (seen as the 'invisible' entrepreneurs), working in markets across Delhi (India) and Phnom Penh (Cambodia) and analyzes the inventory logistics of products sold by them, thereby, reflecting the complex nature of an inter-twined, existential relationship between what's classified as 'informal' and 'formal' in urban economies. The mutual interdependence seen in the governing dynamics of economic exchange (for example, in selling commodities and services across identified markets in Phnom Penh and Delhi), argues for a need to inclusively study urban ecosystems while addressing the needs of street vendors. This paper does so by incorporating ethnographic methods with a specific reference to street vending (as a commercial urban activity). Further, we emphasize on an epistemic need to cross-fertilize thought(s) and method(s) across social science disciplines to produce more of such urban narratives, exploring the inter-twined relationship between the 'informal' and 'formal' aspects of urban ecosystems. [ABSTRACT FROM AUTHOR]

During the past decade, there has been an increased focus on mobility in the social sciences linked to the so-called ‘mobility turn’, which claims that as mobility is so pervasive it should not be viewed as a rupture in society but as a normal way of life. This is certainly the case in urban contexts of sub-Saharan Africa where mobility forms an integral part of livelihood and income-generating activities. Drawing on in-depth qualitative research conducted in Accra, the capital of Ghana, this paper explores the mobility of urban residents in differing parts of the city in relation to their livelihood strategies. Through illustrating the ways in which the mobility of urban residents is aided or hindered by Accra's transport system, and by examining how this in turn influences their livelihood strategies, the paper contributes to an alternative new mobilities paradigm that is more considerate of, and builds upon insights from, the global South where such research has a longer pedigree than in the global North. [ABSTRACT FROM AUTHOR]

The spatial distribution of income shapes the structure and organisation of cities and its understanding has broad societal implications. Despite an abundant literature, many issues remain unclear. In particular, all definitions of segregation are implicitely tied to a single indicator, usually rely on an ambiguous definition of income classes, without any consensus on how to define neighbourhoods and to deal with the polycentric organization of large cities. In this paper, we address all these questions within a unique conceptual framework. We avoid the challenge of providing a direct definition of segregation and instead start from a definition of what segregation is not. This naturally leads to the measure of representation that is able to identify locations where categories are over- or underrepresented. From there, we provide a new measure of exposure that discriminates between situations where categories co-locate or repel one another. We then use this feature to provide an unambiguous, parameter-free method to find meaningful breaks in the income distribution, thus defining classes. Applied to the 2014 American Community Survey, we find 3 emerging classes—low, middle and higher income—out of the original 16 income categories. The higher-income households are proportionally more present in larger cities, while lower-income households are not, invalidating the idea of an increased social polarisation. Finally, using the density—and not the distance to a center which is meaningless in polycentric cities—we find that the richer class is overrepresented in high density zones, especially for larger cities. This suggests that density is a relevant factor for understanding the income structure of cities and might explain some of the differences observed between US and European cities. [ABSTRACT FROM AUTHOR]