Pia Rattenhuber is a Research Fellow at UNU-WIDER. She has previously worked for OECD (Department of Labour and Social Affairs), the German Ministry of Economics and the German Institute of Economic Research (DIW Berlin). She attained her PhD from Free University Berlin. Her works focuses on social protection systems, taxation and tax-benefit microsimulation models.
Zambia’s reliance on rain-fed agriculture makes its economy and population highly vulnerable to frequent droughts and irregular rainfall. This paper assesses the role of social protection, specifically the Social Cash Transfer (SCT) program, in...
The extent of redistribution in low-income developing countries, including in Africa, is very limited, which raises the question whether the tax rates of high-income individuals should be raised. A crucial parameter when considering a potential...
This report documents GHAMOD, the SOUTHMOD model developed for Ghana. This work was carried out by the Institute of Statistical, Social and Economic Research (ISSER) at the University of Ghana in collaboration with the project partners. The results...
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...
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...
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...
We evaluate a major personal income tax reform in Uganda that came into effect in 2012–13, contributing to the scarce literature on the effects of personal income tax reform on employees’ income in a low-income country in Africa. The reform increased...
This report documents GHAMOD, the SOUTHMOD model developed for Ghana. The report describes the different tax-benefit policies in place, how the microsimulation model picks up these different provisions, and the database on which the model runs. It...
In the wake of the COVID-19 pandemic, several countries enacted tax and social protection measures to help mitigate the economic hardship faced by individuals and households. This experience underscores the need to better understand the impact of...
View the latest GHAMOD country report here. This report documents GHAMOD, the SOUTHMOD model developed for Ghana. The report describes the different tax-benefit policies in place, how the microsimulation model picks up these different provisions, and...
Low- and middle-income countries face a trade-off between raising tax revenue to strengthen social protection and creating incentives for the population to enter formal employment. However, empirical evidence on labour supply elasticities in the...
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...
Presumptive tax, a final tax on business income, was introduced in Uganda in 1997. The latest reform to the regime in July 2020 sought to make the system more progressive, simpler, and fairer to small firms. In this work, we evaluate the reform...
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