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Publications (20)
Journal Article
This peer-reviewed research is available free of charge. UNU-WIDER believes that research is a global public good and supports Open Access.
– Evidence from South African tax registers
Part of Journal Special Issue
Public economics and development action
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...
Working Paper
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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...
Working Paper
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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...
Working Paper
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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...
Working Paper
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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...
Working Paper
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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...
Working Paper
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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...
– Prospects and Challenges for Trade-led Growth
These are turbulent times for the international trading community, the WTO in particular. Although Cancun failed,Can the WTO still reassert its development-credibility by ensuring that Doha truly becomes the Development Round?What should the negotiating strategy of the developing countries be?Will...
– Selected Issues
When the Uruguay Round was being negotiated and it was coming to a close, a number of estimates were made about the impact of the agreement on poor countries. Many of the assessments indicated that there would be a net loss for them while others came up with a more positive scenario. Now that the...
Working Paper
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We envisage a logical framework to explain why some trade negotiations are delayed because parties differ on who should ‘go first’. In our model, there are substantive welfare implications depending on which party sets tariff rates (or subsidies) first in a strategic optimization exercise. When...
Working Paper
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With the help of a simple model of production and trade, we examine the differential impact of tariff escalation on skilled and unskilled wages in an economy. Our findings provide a lobbying-based explanation of the prevalence of tariff escalation in developed countries. It also predicts the...
Working Paper
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– A Regional Study of Indian Agriculture
Trade liberalization, by aligning domestic prices with world prices, is envisaged to bring welfare gains to a country. In the case of Indian agriculture, owing to the vastness and diversity of the sector, the impact is likely to be profoundly unequal across regions especially when liberalization is...
Working Paper
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Using a computable general equilibrium simulation model and partial equilibrium simulations, based on the SMART model, the paper attempts to assess the aggregate worldwide distribution of gains and losses of the EU’s Everything But Arms (EBA) initiative for both LDCs and third developing countries...
Working Paper
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– The Economic Results of Freeing Trade
The Doha Ministerial Declaration emphasized that priority should be given to improving market access for products originating in the Least Developed Countries (LDCs). In this paper, we analyze the importance of this proposition with respect to market access in the Triad economies. We first present a...
Working Paper
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Market access liberalization has influenced product-specific growth of world exports and contributed to the shift in the structure of world exports of manufactures towards electrical and electronic goods (including parts and components), goods that require high R&D expenditures, and labour-intensive...
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