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Publications (51)
Working Paper
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The South African Revenue Service and National Treasury Firm-Level Panel is an unbalanced panel data set created by merging several sources of administrative tax data received during 2015. The four data sources that constitute the panel are: company income tax from registered firms who submit tax...
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The manufacturing sector is an important source of productivity growth and exports. Manufacturing firms are generally more productive than firms in the agricultural or services sectors and are an important source of job creation. Little is known about the productivity performance of the sector and...
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– An analysis with administrative data
This paper uses newly available firm-level tax data to evaluate the market structure in South African manufacturing sectors in the period 2010–12. To describe the market structure we compute markups for South African manufacturing firms and concentration indexes for 4-digit manufacturing sectors. We...
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– New evidence from South Africa
This paper uses firm-level data from company tax declarations to analyse the complementary relationship between direct access to imported intermediate inputs and manufacturing firm performance in South Africa. There are three main findings. The first is on firm heterogeneity, showing that importers...
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Existing South African work on firm-level data has been limited by access to large datasets that track firms over time. This paper overcomes this by analysing a new dataset of the population of manufacturing firms that are matched to their export transactions. South African firm-level exporting is...
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In this paper, worker and job flows are estimated using the IRP5 data from the South African Revenue Services. The data used in this paper is from the 2011–14 tax years and contains information on more than 12 million individuals and nearly 300,000 firms. The main finding of the paper is that worker...
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– Evidence from South African tax registers
In this paper we study the effects of various tax schedule discontinuities on the behavior of small firms using high-quality and population-wide tax register data from South Africa. We use the bunching method to analyse how these discontinuities affect the firm-size distribution. We first examine...
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The Development under Climate Change research effort provides a basis for determining quantitative impacts on infrastructure from climate change. This paper provides results of an analysis of sea level rise impacts on road infrastructure in Vietnam. The study utilizes a quantitative approach for...
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Traditional ‘delta-change’ approach of scenario generation for climate change impact assessment to water resources strongly depends on the selected base-case observed historical climate conditions that the climate shocks are to be super-imposed. This method disregards the combined effect of climate...
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The study examines the relationship between climatic factors and reported malaria cases using data from 12 districts in Uganda over the period 2000-2011. A panel dataset comprising temperature, temperature standard deviation; minimum humidity; maximum humidity; precipitation; precipitation standard...
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We estimate the impact of Malawi’s Farm Input Subsidy Programme using an economywide approach. We find potentially substantial net benefits with indirect benefits accounting for about two-fifths of total benefits. Due to these indirect benefits, the cut-off at which lower fertilizer yield response...
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– A Systems Approach
Capacity planners in developing countries frequently use screening curves and other system-independent metrics such as levelized cost of energy to guide investment decisions. This can lead to spurious conclusions when evaluating intermittent power sources such as solar and wind. We use a system...
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The present study aims to explore economic and socio-demographic factors that influence the household’s probability to switch from firewood to clean fuels in northern Cameroon. The paper employs an ordered probit model to construct cooking patterns and fuel choices. Three main cooking sources are...
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An assessment of the impacts of projected climate change on water availability and crop production in the Volta Basin and the southwestern and coastal basin systems of Ghana has been undertaken as a component of the impacts and adaptation study for Ghana by UNU-WIDER and the University of Ghana...
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– Evidence from Ghana
Climate change scenarios for many Sub-Saharan African countries including Ghana indicate that temperatures will increase while rainfall will either increase or decrease. The potential impact of climate change on economic systems is well-known. However, little has been done to assess its economic...
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– A Study of Climate Variability and Household Adaptation Strategies in Southern Ethiopian Rangelands
This paper examines the determinants and implied economic impacts of climate change adaptation strategies in the context of traditional pastoralism. It is based on a household level survey in southern Ethiopian rangelands. Pastoralists’ perception of climate change in the region is found to be very...
Displaying 16 of 51 results