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Working Papers

publication

Farm diversification and climate change: implications for food security in Northern Namibia

Chalmers Mulwa and Martine Visser
Limited non-farm opportunities in the rural areas of the developing world, coupled with population growth, means agriculture will continue to play a dominant role as a source of livelihood in these areas. Thus, while rural transformation has dominated recent literature as a way of improving welfare...
Oct 2019
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publication

The relationship between renewable energy and retail electricity prices: Panel evidence from OECD countries

A.M. Oosthuizen, R. Inglesi-Lotz and G.A. Thopil
The centrality of electricity to everyday life is indisputable, and the price thereof can have significant implications. Literature is inconclusive over the effect of the renewable energy share in the energy mix on retail electricity price as country-specific regulatory policy has a significant...
Sep 2019
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Understanding the drivers of subsistence poaching in the Great Limpopo Transfrontier Conservation Area: What matters for community wildlife conservation?

Herbert Ntuli, Aksel Sundström, Martin Sjöstedt, Edwin Muchapondwa, Sverker C. Jagers, Amanda Linell
While subsistence poaching is a large threat to wildlife conservation in Southern Africa, this behaviour is seldom researched. Individual and community level factors that really drive such behaviour are less understood because of both lack of data and literature’s predominant focus on commercial...
Sep 2019
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A New Keynesian DSGE model for Low Income Economies with Foreign Exchange Constraints

Bertha C. Bangara
The existing literature is clear that low income economies tend to suffer from foreign exchange shortages exacerbated by their exports. Most importantly, the concentration of their exports renders these countries susceptible to international price fluctuations. This frequently affects the level of...
Sep 2019
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publication

Inequality in South Africa: what does a composite index of wellbeing reveal?

Stephanié Rossouw and Talita Greyling
Policymakers need better information regarding wellbeing inequality to ascertain the contributing factors and to determine whether policy has been successful in improving the spread over time. In this paper, we construct a multidimensional composite wellbeing measure, at a micro level, which...
Sep 2019
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Efficiency of South African water utilities: a double bootstrap DEA analysis

Celiwe Samkange, Jugal Mahabir and Johane Dikgang
Although the efficiency of the water sector has been studied extensively utilising data envelopment analysis (DEA), the literature tends to use the conventional DEA model to compute efficiency scores. However, conventional DEA input/output data may contain random errors, which may result in...
Sep 2019
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publication

Narrowing the ‘digital divide’: the role of complementarities between fixed and mobile data in South Africa

Ryan Hawthrone and Lukasz Grzybowksi
We study substitution between fixed and mobile broadband services in South Africa using survey data on 134,000 individuals between 2009 and 2014. In our discrete-choice model, individuals choose fixed or mobile and data services in a framework that allows them to be substitutes or complements. We...
Sep 2019
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