Musical borderlands: A cultural perspective of regional integration in Africa

This paper deploys a notion of "musical borderlands" to understand the practice and meaning of music production in an African context. This concept stresses flow rather than stasis, and liminal not dualistic thinking and being; it also relates economic and social practices to cultural content. It shows how Francophone (West and Central) African participants in hip hop music use translocal networks to sustain their community, and demonstrate dynamic relationships between material production and social reproduction. This enables new socialities to emerge with the potential to rearticulate political relations, which reaffirm trans-local, trans-urban, trans-border solidarities

Reconsidering cultural entrepreneurship: hip hop music economy and social change in Senegal, francophone West Africa

The increasing interest in the cultural economy is part of an attempt to invent new industrial development strategies that comprises a capacity to transform locations. In policy-making, the cultural economy is commonly framed from an economic perspective that salutes the role of the cultural economy and the dynamics of entrepreneurship in processes of urban and regional developments. Moreover, explorations of cultural economy and entrepreneurship are mainly represented by studies of Europe and North America. This thesis departs from such a normative perspective, and critically examines the links between a situated music economy, its cultural entrepreneurs and social change in West Africa. The empirical investigation of West African hip hop musical practitioners is framed by the notion of “community of practice”. The situated practices of these cultural workers and their music production ecology are investigated – methodologically – from a grounded perspective in order to grasp the originality of their materiality and aesthetics. The empirical focus of this thesis research is Dakar, one Francophone West African urban locale, which is contrasted with the ‘test case’ site of Ouagadougou. The case study locations are ‘experientially situated’, and over seventy semi-structured interviews were conducted with a range of participants both directly and indirectly involved in the hip hop music economy. Underpinning this research is the starting point that using “community of practice” as a conceptual framework offers a theoretically informed empirical basis for situating cultural entrepreneurship in the context of the West African music economy. In response, this thesis introduces the transcultural dimension of Hip Hop to frame its radical culturalisation of the West African music economy. This is done by singling out the political, social and theoretical significance of how hip hop entrepreneurship has become a force to be reckoned within social change in Francophone West Africa: this is a significant contribution of the thesis

Curating Dakar as an art world city

This chapter explores the contours and dynamics that forge Dakar as a contemporary ‘art world city,’ inquiring into initiatives that operate at the crossroads of art, citizenship and society. In a context marked by a monopolistic role of the state, the chapter interrogates the practices of two independent art organizations, RAW Material Company and Kër Thiossane, and their different engagements with and through the city. Delving into the processes of alterna tive, independent ‘art institution-building,’ we draw on AbdouMaliq Simone’s notion of ‘rhythms of endurance’ to explore the ways in which new methods of sharing and producing knowledge are developed and curated. Located at the intersections of creativity, cultural politics, and urban transformation, our contribution focuses on the subjects of such creative and transformative processes. In doing so, we emphasize the capacity of ordinary citizens to engage in the practical and symbolic re-imagining of their city. This chapter demonstrates that curatorial interventions and critical perspectives, through engaging with multiple audiences and investing in ‘art as a thinking system,’ can create spaces of encounters, of expression, exchange, reflection, and speculation to produce an ‘art world city’ in constant recreation

Affine term structure models : a time-changed approach with perfect fit to market curves

We address the so-called calibration problem which consists of fitting in a tractable way a given model to a specified term structure like, e.g., yield or default probability curves. Time-homogeneous jump-diffusions like Vasicek or Cox-Ingersoll-Ross (possibly coupled with compounded Poisson jumps, JCIR), are tractable processes but have limited flexibility; they fail to replicate actual market curves. The deterministic shift extension of the latter (Hull-White or JCIR++) is a simple but yet efficient solution that is widely used by both academics and practitioners. However, the shift approach is often not appropriate when positivity is required, which is a common constraint when dealing with credit spreads or default intensities. In this paper, we tackle this problem by adopting a time change approach. On the top of providing an elegant solution to the calibration problem under positivity constraint, our model features additional interesting properties in terms of implied volatilities. It is compared to the shift extension on various credit risk applications such as credit default swap, credit default swaption and credit valuation adjustment under wrong-way risk. The time change approach is able to generate much larger volatility and covariance effects under the positivity constraint. Our model offers an appealing alternative to the shift in such cases.Comment: 44 pages, figures and table

West Africa International Centers of Excellence for Malaria Research: Drug Resistance Patterns to Artemether-Lumefantrine in Senegal, Mali, and The Gambia.

In 2006, artemether-lumefantrine (AL) became the first-line treatment of uncomplicated malaria in Senegal, Mali, and the Gambia. To monitor its efficacy, between August 2011 and November 2014, children with uncomplicated Plasmodium falciparum malaria were treated with AL and followed up for 42 days. A total of 463 subjects were enrolled in three sites (246 in Senegal, 97 in Mali, and 120 in Gambia). No early treatment failure was observed and malaria infection cleared in all patients by day 3. Polymerase chain reaction (PCR)-adjusted adequate clinical and parasitological response (ACPR) was 100% in Mali, and the Gambia, and 98.8% in Senegal. However, without PCR adjustment, ACPR was 89.4% overall; 91.5% in Mali, 98.8% in Senegal, and 64.3% in the Gambia (the lower value in the Gambia attributed to poor compliance of the full antimalarial course). However, pfmdr1 mutations were prevalent in Senegal and a decrease in parasite sensitivity to artesunate and lumefantrine (as measured by ex vivo drug assay) was observed at all sites. Recrudescent parasites did not show Kelch 13 (K13) mutations and AL remains highly efficacious in these west African sites