Labour Market Modelling and the Urban Informal Sector: Theory and Evidence

[Excerpt] The purpose of this paper is to assess the compatibility between theoretical models of the urban informal sector (UIS) and empirical evidence on the workings of that sector in the context of developing countries\u27 labour markets. My major point is that although the UIS is an excellent idea which has served us well in the 1970s and 1980s, we have need in the next round of research to refine our terminology and our models in light of empirical findings which have come to the fore in the interim. I would contend that what empirical researchers label the informal sector is best represented not as one sector nor as a continuum but as two qualitatively distinct sectors. Wage employment or self-employment in small-scale units may be better than or worse than employment in the formal sector. This is not a new point: diversity of earning opportunities and other job characteristics within the informal sector has long been noted — among other places, in the pathbreaking work of Hart (1973) and in the critiques of the informal sector concept by Bienefeld and Godfrey (1975), the ILO Sudan Report (1976), Standing (1977) and Sinclair (1978). But only recently has this view come to the fore: A third point in which agreement has been reached concerns the degree of heterogeneity within the informal sector. Contrary to the prevailing image of a decade and a half ago to the effect that the informal sector was of a homogeneous nature, it is clear today that there are different segments within this sector (Tokman, 1986, p. 13)

Customer order scheduling to minimize total weighted completion time

2006-2007 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe

Remoteness, Rurality and Mental Health Problems (Findings paper no. 5)

Findings papers associated with ESRC-funded research project, 'Social Geographies of Rural Mental Health' (R000 23 8453)

“Automation” of manufacturing in the late nineteenth century: the hand and machine labor study

Recent advances in artificial intelligence and robotics have generated a robust debate about the future of work. An analogous debate occurred in the late nineteenth century when mechanization first transformed manufacturing. We analyze an extraordinary dataset from the late nineteenth century, the Hand and Machine Labor study carried out by the US Department of Labor in the mid-1890s. We focus on transitions at the task level from hand to machine production, and on the impact of inanimate power, especially of steam power, on labor productivity. Our analysis sheds light on the ability of modern task-based models to account for the effects of historical mechanization.Published versio

Spartan Daily, April 19, 2005

Volume 124, Issue 51https://scholarworks.sjsu.edu/spartandaily/10123/thumbnail.jp

Atlas of Ocean Wealth

The Atlas of Ocean Wealth is the largest collection to date of information about the economic, social and cultural values of coastal and marine habitats from all over the world. It is a synthesis of innovative science, led by The Nature Conservancy (TNC), with many partners around the world. Through these efforts, they've gathered vast new datasets from both traditional and less likely sources.The work includes more than 35 novel and critically important maps that show how nature's value to people varies widely from place to place. They also illustrate nature's potential. These maps show that one can accurately quantify the value of marine resources. Further, by enumerating such values, one can encourage their protection or enhancement for the benefit of people all around the world. In summary, it clearly articulates not just that we need nature, but how much we need it, and where

Semi-Transitive Orientations and Word-Representable Graphs

A graph $G=(V,E)$ is a \emph{word-representable graph} if there exists a word $W$ over the alphabet $V$ such that letters $x$ and $y$ alternate in $W$ if and only if $(x,y)\in E$ for each $x\neq y$. In this paper we give an effective characterization of word-representable graphs in terms of orientations. Namely, we show that a graph is word-representable if and only if it admits a \emph{semi-transitive orientation} defined in the paper. This allows us to prove a number of results about word-representable graphs, in particular showing that the recognition problem is in NP, and that word-representable graphs include all 3-colorable graphs. We also explore bounds on the size of the word representing the graph. The representation number of $G$ is the minimum $k$ such that $G$ is a representable by a word, where each letter occurs $k$ times; such a $k$ exists for any word-representable graph. We show that the representation number of a word-representable graph on $n$ vertices is at most $2n$, while there exist graphs for which it is $n/2$.Comment: arXiv admin note: text overlap with arXiv:0810.031

More effective skills utilisation : shifting the terrain of skills policy in Scotland

This paper examines shifts in skills policy in Scotland towards emphasising the importance of effective skills utilisation. Turning policy into practice, however, requires a better understanding than currently exists of skills utilisation in order to facilitate better measurement, evaluation and intervention. This paper aims to contribute to such an understanding. We suggest that effective skills utilisation comprises two distinct elements: the use of better skills and the better use of skills, with the former crucial to the development of a high skills economy and the latter crucial to realising existing untapped workforce potential. We further argue that skills utilisation is most likely where workers have the ability, motivation and opportunity to deploy their skills effectively. We conclude by advocating greater collaboration in skills utilisation practice and research between relevant stakeholders, drawing on European experiences and an approach – which we call ASPiRRE – that envelops actors, structures, protocols, responsibilities, resources and expertise in order to align distinct stakeholder interests and encourage innovative practice in skills deployment

Emergent realities for social wellbeing : environmental, spatial and social pathways

The topic of migration has always generated opposing views. Discussions on online social networks are characterised by hatred, xenophobic and labelling observations while others promote cultural diversity and integration. In the last ten years, Malta had to deal with the influx of several migrants. This is possibly the result of a considerable amount of people living in African countries experiencing uncertainty, high crime, poverty and unemployment rates and who are seeking a better future (LeMay, 2007). Studies have shown that migration is partly responsible for poverty and other economic and social deficiencies, although this hypothesis has not always been confirmed (Tienda & Liang, 1994). Several countries are re-assessing their social and economic policies to combat economic pressure, crime and other problems which are possibly being exacerbated by such a phenomenon (Parsons & Smeeding, 2006).peer-reviewe