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Publications (131)
Working Paper
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– Comparing the performance of universal basic income in Uganda and Zambia during COVID-19
The debate over universal basic income (UBI) has gained traction in the developing world in recent years. We analyse the effects of four UBI schemes on poverty and inequality measures during normal times and times of crisis in Uganda and Zambia. We use static microsimulation models and nationally...
Working Paper
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Cross-border traders face a choice between official and unofficial border crossings. The latter allow them to evade taxes, but expose them to other risks, such as bribes, fines, and arrest. We investigate the perceptions of cross-border traders about the risks of trading officially vs unofficially...
The Zambian government wants to reduce poverty by 20% by 2030. To make this happen, the government reformed their national cash transfer programmes. But what was the potential impact? In 2021, our MicroZAMOD team conducted an assessment—recommendations of which have been adopted at the highest level...
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.
In an environment with extensive corruption where much of the population evades paying their full taxes due, we tackle the question of optimal taxation when constituencies with conflicting objectives (the poor and the rich) push tax policy in different directions. We think in terms of a government...
– Latest addition to the SOUTHMOD programme
ZANMOD, the tax-benefit microsimulation model for Zanzibar, was launched in November 2023. The model will aid local authorities and researchers in understanding how taxation and social protection policies can be improved to reduce poverty and enhance equality.The research and coding work for the...
Working Paper
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– Simulation results for Zambia
The COVID-19 pandemic increased public debt and changed the income distribution in many countries. We use a numerical simulation approach to derive optimal nonlinear marginal tax rates for the pre-crisis and crisis periods. We contribute to the literature by examining optimal tax rates numerically...
Working Paper
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– Evidence from Zambian tax administrative data
We investigate the behavioural responses of individual taxpayers to changes in marginal personal income tax rates applying empirical bunching methodology to tax administrative data from Zambia over the period from 2014 to 2021. We find evidence for excess bunching at the first kink in the tax...
– Four pieces of advice for policymakers
From profit shifting to sanction evasion, illicit financial flows divert funds away from essential poverty-fighting and infrastructure programs. A growing body of research provides essential insights for policymakers on how to tackle this key development challenge.Illicit financial flows (IFFs) are...
Working Paper
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– A comparative perspective
We examine the distributional effects of the COVID-19 pandemic and associated tax-benefit measures in seven sub-Saharan African countries, focusing on the onset of the crisis.We evaluate impacts on disposable incomes, considering variations across income groups; assess the effectiveness of tax...
Working Paper
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– An examination of the alleviating impact of tax and benefit measures
This paper investigates the impact of the COVID-19 pandemic and related tax-benefit measures in Viet Nam. The focus is on the initial phase of the crisis in 2020. The study delves into how the pandemic affected disposable incomes, examining the differences across the income distribution and impacts...
– But not without some unintended results
About three years have passed since the South African government introduced the COVID-19 Temporary Employer-Employee Relief Scheme (TERS) in response to the pandemic and associated lockdown regulations. Given the extent of unemployment in South Africa even prior to the pandemic, the policy’s primary...
Working Paper
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– Evidence from South Africa
Wage subsidies served as a dominant labour market policy response around the world to mitigate job losses in response to the COVID-19 pandemic. However, no causal evidence of their effects exists for developing countries.We use unique panel labour force survey data and exploit a temporary...
Working Paper
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This study evaluates which type of benefit—a universal benefit, a proxy mean-tested benefit, or a categorical benefit— better cushions the poverty effects of income shocks in a developing economy. We compare the effectiveness of the three benefit schemes on poverty first conceptually and then by...
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.
– A review of methods and evidence
Illicit financial flows (IFFs) constitute a major challenge for development in low-income countries, as domestic resource mobilization is imperative for providing crucial public services. This study focuses exclusively on the economic dimension of IFFs, thereby excluding topics as drugs trade, money...
Working Paper
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– An analysis using tax-benefit microsimulation modelling
Establishing an equitable and efficient tax system is essential for reducing poverty, combating inequality, and fostering sustainable economic growth. Rwanda’s government has recognized this and implemented significant changes to the personal income tax schedule for 2023 and 2024 as part of broader...
– Welcome to the three new Latin American teams
How would progressive income taxation affect income inequality in Bolivia? What are the costs and benefits of implementing a state pension in Colombia? Which social protection policies reduce income poverty in Peru? In addition to the nine pre-existing countries with their own tailored tax-benefit...
Displaying 16 of 131 results