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Publications (24)
Technical Note
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– The case of Girinka in Rwanda
SOUTHMOD tax-benefit microsimulation models may in some cases oversimulate taxes or benefits, generating greater expenditure, a greater number of beneficiaries, or greater amounts of taxes or taxpayers than reported in administrative data. Drawing on an example of a social benefit policy in Rwanda...
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 Ecuador
By combining household survey data before and during the COVID-19 pandemic with detailed tax-benefit simulations, this paper quantifies the distributional effects of COVID-19 in Ecuador and the role of tax-benefit policies in mitigating the immediate impact of the economic shocks. Our results show a...
Journal Article
– A decomposition approach
Redistributive systems in Africa are still in their infancy but are expanding in order to finance increasing public spending. This study aims at characterising the redistributive potential of six African countries: Ghana, Zambia, Mozambique, Tanzania, Ethiopia and South Africa.These countries show...
Technical Note
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This note describes methods to derive employment-to-unemployment transition shares across industries during the COVID-19 pandemic and to use these shares in SOUTHMOD tax-benefit microsimulation models to adjust relevant labour market variables. The first method entails the derivation of industry...
Technical Note
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This technical note presents one of the modelling approaches used in Jara and Rattenhuber (2022) to estimate formal employment elasticities, namely the estimation of a discrete choice model of labour supply with informal employment. The approach makes use of ECUAMOD, the tax-benefit model for...
Journal Article
This study analyses the impacts of indirect tax benefits policy reforms on income distribution and poverty in Tanzania by applying a standard static microsimulation model TAZMOD v1.8. The simulations model two indirect tax reforms involving changes to the excise duty and value‐added tax rates on...
Technical Note
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Agricultural subsidies may have significant productive and distributional consequences, and policy-makers need to be able to assess these impacts as a part of the overall tax and benefit policy. Microsimulation models offer a tool for such analysis also in developing countries, but their coverage...
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Moçambique reportou o seu primeiro caso da COVID-19 em 22 de Março de 2020. As estimativas do PIB sugerem um forte efeito da pandemia, com uma redução de sete dos nove dos sectores de actividade analisados. No entanto, o sector agrícola – um dos mais importantes – registou um aumento de 9%, que pode...
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Presumptive tax, a final tax on business income, was introduced in Uganda in 1997. It has been reformed several times since its conception. The latest reform in July 2020 sought to make the presumptive regime more progressive, simpler and fairer to small firms. The revised rates have however raised...
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– Simulating potential Cash Plus reforms
A large share of the population in Zambia is living below the national poverty line, with most of them being extremely poor. In a bid to improve the social and economic situation, the Zambian government introduced the Social Cash Transfer (SCT) programme which provides cash payments to poor and...
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Tanzania, similar to most sub-Saharan countries, reported its first COVID-19 cases in March 2020. While GDP estimates suggest that the economy was less hard hit than in other African countries, some sectors have nevertheless experienced negative growth. Even with contained GDP contractions in 2020...
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In 2020, the first wave of the COVID-19 pandemic caused an economic crisis that disrupted the Ugandan labour market. How large were the associated income losses across different industries and population groups? To what extent did the general tax-benefit system mitigate the adverse effects of the...
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The first cases of COVID-19 in sub-Saharan Africa were reported in March 2020, and the impact of the pandemic has since rippled through the world and Africa. In response to the crisis and similarly to many of its peers, Ghana has enacted a variety of containment measures to confront the pandemic...
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Mozambique reported its first case of COVID-19 on 22 March 2020. GDP estimates suggest a strong pandemic effect, with a reduction in seven of nine business sectors analysed. However, the agriculture sector, one of the most important, experienced a 9% increase, which may have cushioned the pandemic...
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Zambia’s economic growth has been flattening over the past decade. In 2020 economic prospects further worsened, following the onset of the pandemic, rising debt, and the Eurobond default. In this unprecedented scenario, there is the need to examine impacts on welfare and the mitigation role taxes...
Technical Note
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This note sets out two different methods on how to adjust incomes in the microdata underlying the standard SOUTHMOD models to reflect a sudden shock, in this case the COVID-19 shock, as done in the accompanying working paper by Lastunen et al. (2021). The note first describes how industry-specific...
Technical Note
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This technical note presents a modelling approach used in Lastunen et al. (2021) where tax and benefit policies are scaled to reflect their actual duration during a single calendar year. It can be applied to tax-benefit microsimulation models implemented in the EUROMOD software. The method is...
Technical Note
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This note describes how the counterfactual datasets in the working paper by Lastunen et al. (2021) have been reweighted, for each country analysed, to the ‘pre-crisis’ time point of 31 March 2020. The procedure consists of five main steps. The note forms part of a series of technical notes that...
Technical Note
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This note, which forms part of a series of technical notes that complement Lastunen et al. (2021), reports the approach used to derive shocks to household expenditures from shocks at the individual-level labour incomes. Its structure is composed by six different parts that describe the technique...
Technical Note
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This note has set out several data processes that have been undertaken using the income data in dataset(s) that underpin SAMOD. Section 1 describes various data-cleaning steps that were undertaken when preparing the LCS 2014/15 as an underpinning dataset for SAMOD. Part 2 elaborates on the process...
Technical Note
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This technical note has been produced alongside a WIDER working paper assessing the effects on income inequality and income tax simulations of adjusting top incomes of employees in survey data based on administrative tax records in Ecuador. The paper and the technical note are based on ECUAMOD...
Technical Note
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This note has been produced alongside a WIDER working paper assessing the effect of the Unemployment Insurance benefit on income protection in Ecuador. The aim of this note is to describe the methodology used to assess the effect of the Unemployment Insurance through the simulation of transitions...
Technical Note
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This note, with emphasis on VAT and excise taxes, illustrates how indirect taxes are modelled in the context of GHAMOD, a tax-benefit microsimulation model for Ghana. GHAMOD is similar to the EUROMOD base platform, and its built-in Statistics Presenter Tool supports simple analyses of ex-ante policy...
Technical Note
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– The case of UGAMOD
This note describes how to incorporate sub-national poverty lines into a SOUTHMOD country model using conditional constants within the constants function in such a way that the Statistics Presenter can generate national-level poverty statistics. The Uganda tax-benefit microsimulation model UGAMOD is...
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