Parallel session
Inequality analysis: Lessons from tax administrative data

Parallel 7.4 | Room 4: Friday, 7 October 2022, 9:00-10:30 (UTC-5)

The session includes a few papers produced by the UNU-WIDER's Building up efficient and fair tax systems – lessons based on administrative tax data project. Though monetary inequality has been studied using survey data in developing countries, this misses out the top end of the income distribution. The papers in this session discuss how levels and trends in income inequality change when using tax administrative data that include the top earners in various countries.


9:00-10:30 (UTC-5)

Jukka Pirttilä | Chair and presenter

Taxpayer response to greater progressivity: Evidence from personal income tax reform in Uganda
(co-authors: Maria Jouste, Tina Kaidu, Joseph Okello Ayo, and Pia Rattenhuber)

Jukka Pirttilä is Professor of Public Economics at the University of Helsinki and VATT Institute for Economic Research. He is also a Non-Resident Senior Researcher at UNU-WIDER. His research focuses on tax policy and other topics in public economics.

Holguer Xavier Jara Tamayo | Presenter

Top earners and earnings inequality during the COVID-19 pandemic: evidence from Ecuadorian administrative data

H. Xavier Jara is Research Officer at the International Inequalities Institute at the London School of Economics. He holds a PhD in Economics from the University of Leuven, Belgium. He works in the fields of public and development economics and has extensive experience in the study of distributional analysis, microsimulation of tax-benefit policies and well-being measurement.

Amina Ebrahim | Presenter

Income inequality in South Africa: Evidence from individual-level administrative data 
(co-authors: Murray Leibbrandt, Marlies Piek, and Jukka Pirttilä)

Amina Ebrahim is an economist holding a PhD from the University of Cape Town, South Africa. She is a Research Fellow at UNU-WIDER based in Helsinki where she is a core researcher in the Domestic Revenue Mobilisation programme. She previously worked on UNU-WIDER’s Southern Africa – Towards Inclusive Economic Development (SA-TIED) in Pretoria, South Africa.

Markus Jäntti | Presenter

Income distribution in Uganda based on tax registers: what do top incomes say? 
(co-authors: Milly Isingoma Nalukwago and Ronald Waiswa)

Markus Jantti is Professor of Economics at and current Director of the Swedish Institute for Social Research (SOFI) at Stockholm University. He was previously Professor of Economics at the University of Helsinki and the VATT institute for Economic Research, Abo Akademi University. the University of Tampere, as well as Visiting Associate Professor of Economics at the University of Michigan, Scientific Director at Statistics Finland, and Research Director at the Luxembourg Income Study. His research addresses economic inequality, poverty, and income mobility, often in comparative perspective.