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Publications (74)
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.
This study examines the trajectory of global income inequality since 1981. Commonly used (relative) definitions indicate a decline in global inequality since the late 1980s. Looking ahead, it has been intuited that the influence of China's economic development — and that of other rapidly growing...
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.
The study analyses trends in global income distribution since 1950 using a new companion WIID dataset with standardized country income percentiles. It investigate the robustness of these trends with respect to key data choices, as well as the degree to which the inequality trend depends on specific...
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...
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...
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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– The contribution of the UNU-WIDER World Income Inequality Database initiative
Globally, there are several initiatives being undertaken to ensure the availability of information across countries that can be used to analyse the inequality phenomenon in and among countries. The data are easily accessible for use in comparative research on inequality across regions and countries...
Working Paper
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– ACEIR research and the WIID
Work done by the African Centre of Excellence for Inequality Research (ACEIR) has documented the many-faceted nature of inequality in Ghana, Kenya, and South Africa. Conventionally measured inequality ranges from moderate (in Ghana) to extremely high (in South Africa). Trying to tell one coherent...
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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– Ghana case study
Over the years, money-metric measures of inequality such as the Gini coefficient and the Palma Ratio, as frequently used in Ghana, have become useful in providing quantitative measures of welfare distribution that enable a better understanding of the extent and nature of inequality. From these...
Working Paper
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A substantial amount of research has been conducted examining inequality in South Africa using multiple data sources. We provide an overview of this research in this paper. Furthermore, we use nationally representative survey data to estimate income and consumption inequality in South Africa between...
Many countries today experience increasing or persistent income inequality, a major concern for citizens and politicians alike. This concern is justified; as some individuals get richer, most people’s real incomes stagnate. Widening income inequality brings challenges to a nation’s development...
Working Paper
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Financial sanctions, which aim to economically hurt a target by restricting its access to financial assets and markets, require the ability to identify who owns an asset. Although experts have long claimed that offshore financial centres that offer secrecy (‘tax havens’) undermine sanctions by...
Blog
– The annual profits multinational corporations shift to tax havens continues to climb and climb
About a decade ago, the world’s biggest economies agreed to crack down on multinational corporations’ abusive use of tax havens. This resulted in a 15-point action plan that aimed to curb practices that shielded a large chunk of corporate profits from tax authorities.But, according to our estimates...
The importance of domestic revenue mobilization and taxation for sustainable development is widely acknowledged in global development discussions, but for real change to happen the amounts of development aid and political engagement need to live up to commitments.Key factors of development...
Working Paper
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In this paper we explore the links between international migration and income inequality. After presenting a simple model which considers the role of income distribution in individual decisions to migrate, we estimate a set of models on the determinants of yearly bilateral migration from a very...
Displaying 16 of 74 results