The billionaire tax – a (modest) proposal for the 21st century

As recent projections warn that we’re off-track to reduce inequality for the 2030 deadline of the Sustainable Development Goals, the pressing need for equitable tax systems takes center stage at the 28th WIDER Annual Lecture on 4 September 2024. Esteemed economist Gabriel Zucman examines how disparities of current tax structures guarantee this inequality is persistent due to advantages enjoyed by the ultra-wealthy.

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luxurious meal versus poor meal
Uganda TIN registration form, calculator, currency, pen. Image: Kalungi Kabuye / UNU-WIDER

WIDER Seminar Series

The WIDER Seminar Series has returned! Beginning in March, join either online or in person for the 2024 season of this exciting event series to hear the latest research in development.

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379 past and upcoming events

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Seminar
papers and calculator on table SA-TIED Seminar Series: Exploring options to deepen and broaden the personal income tax base in South Africa
Thu, 11 July 2024
Online - Zoom, Pretoria, South Africa
Past event
Seminar
Julien Wolfersberger on Climate immobility in sub-Saharan Africa
Wed, 12 June 2024
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Alexandra Hartmann on Empowerment on the move? An experiment in supporting forcibly displaced people in Greece
Tue, 4 June 2024
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Nagesh Kumar on Manufacturing and India’s green transition: challenges, opportunities and policies
Wed, 22 May 2024
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
The world at crossroads – securing the future generations The world at crossroads – securing the future generations
Tue, 14 May 2024 – Thu, 16 May 2024
Radisson Blu Hotel and Residence, Avenida Marginal 141, 9999, Maputo, Mozambique
Past event
Seminar
Bruno Martorano on Social movements and preferences for redistribution
Tue, 30 April 2024
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
young boy in a market SA-TIED Seminar Series: Proposal for the extension, redesign, and repurposing of the SRD grant, with a focus on poverty and unemployment reduction.
Tue, 30 April 2024
Online, South Africa
Past event
Seminar
Nicole Hassoun on Measuring population health: avoiding discrimination
Thu, 11 April 2024
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Andrea Vaccaro on how (the lack of) state experience shapes today’s fragile states
Wed, 20 March 2024
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Man working, Zambia, search image. Image: Jean Mandela / UNU-WIDER LDC5 Monitor – Defining its scope and uses
Thu, 7 March 2024
Online, Helsinki, Finland
Past event
Conference
LDC Future Forum 2024 logo search image Innovation for structural transformation in Least Developed Countries – LDC Future Forum
Tue, 5 March 2024 – Thu, 7 March 2024
Online, Helsinki, Finland
Past event
Seminar
Kunal Sen on Varieties of Structural Transformation – SOAS Seminar series

Kunal Sen joins the SOAS Economics Seminar Series to present insights from the book Varieties of Structural Transformation.One of the key features of modern economic growth is the process of structural transformation, which is the movement of workers...

Thu, 29 February 2024
SOAS, University of London main building, RB01, 10 Thornhaugh St, London, United Kingdom
Past event
Seminar
Nadine Riedel on the effectiveness of countermeasures against multinational tax avoidance
Wed, 29 November 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Gabriela Zapata Román on The motherhood effect on women's labour trajectories: preliminary results
Wed, 15 November 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
SA-TIED's presence at the Inequality, Work, and Nature Conference

SA-TIED representatives recently participated in the Inequality, Work, and Nature Conference, held on 8 and 9 November 2023. This collaborative effort, led by The Presidency, The EU, and the African Centre of Excellence for Inequality Research at the...

Wed, 8 November 2023 – Thu, 9 November 2023
University of Cape Town, Rondebosch, Cape Town, 7700, Cape Town, South Africa
Past event
Conference
Agricultural development in Mozambique: trends, challenges and opportunities

The importance of the agricultural sector in the Mozambican economy, its potential to help move people out of poverty, and its vulnerability to the effects of weather shocks and climate change, place it among key policy areas in the country. However...

Wed, 8 November 2023
Maputo, Mozambique
Past event
Seminar
Stefan Leeffers on the effect of information on flood preparedness in urban Mozambique
Wed, 25 October 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Iván Torre on Educational mobility in Europe and Central Asia
Thu, 19 October 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Varieties of structural transformation seminar by Kunal Sen

On 27 September Kunal Sen attends the The Faculty of Economics of Thammasat University in Pranakorn, Bangkok, to deliver a seminar titled 'Varieties of structural transformation'. The presentation draws on the UNU-WIDER project exploring the old and...

Wed, 27 September 2023
Bangkok, Thailand
Past event
Seminar
Paulo Santos presents evidence on the agricultural origins of prejudice from multiple Asian societies
Wed, 20 September 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Saumik Paul on Construction productivity and relative prosperity
Wed, 13 September 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
WIDER Development Conference poster Revving up revenue for development – the role of domestic resource mobilization
Wed, 6 September 2023 – Fri, 8 September 2023
Radisson Blu Scandinavia Hotel, Holbergsgate 30, 166, Oslo, Norway
Past event
Seminar
Sefa Kwami Awaworyi Churchill on Temperature, climate change and household financial behaviour: evidence from Vietnam
Wed, 14 June 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Michael Palmer presents Can information improve the uptake of disability benefits?
Wed, 14 June 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Yusi Ouyang on Fighting poverty to promote growth
Thu, 8 June 2023
Finland
Past event
Seminar
William Ferguson on A theory of triadic power with applications to leadership, collective action, and institutional evolution
Wed, 7 June 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Yselle Flora Malah Kuete presents Does structural change benefit women? Firm-level evidence from the services sector in Cameroon
Wed, 31 May 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Odd-Helge Fjeldstad on Incentivizing customers to increase VAT compliance: Evidence from Tanzania
Wed, 24 May 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Aid effectiveness in fragile states

UNU-WIDER researchers offer a seminar on aid effectiveness in fragile states to an audience of Swedish development officials and foreign officers. The seminar is organized by the Swedish International Development Cooperation Agency (SIDA).

Tue, 23 May 2023
Online, Sweden
Past event
Seminar
Sonia R. Bhalotra on Job displacement, unemployment benefits and domestic violence
Wed, 10 May 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Tax and development workshop
Wed, 26 April 2023 – Thu, 27 April 2023
Kampala, Uganda
Past event
Seminar
Hector Gutierrez Rufrancos on The unequal effect of pollution exposure on labour supply across gender
Wed, 12 April 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Addressing ethnic inequality: comparative experiences, Seminar at UN DESA

Rachel M. Gisselquist speaks at the United Nations Department of Economic and Social Affairs (UN DESA) to update experts and officials on new findings from the Addressing group-based inequalities project. The seminar on 'Addressing ethnic inequality...

Wed, 29 March 2023
Online, Finland
Past event
Seminar
Quentin Stoeffler on Economic opportunities, education and child labor: the effects of artisanal gold mining in Burkina Faso
Wed, 29 March 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Céline Zipfel on A mother’s voice: Impacts of spousal communication training on child health investments
Wed, 15 March 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Addressing vulnerabilities through production transformation – Launch of the LDC5 Monitor
Thu, 9 March 2023
Qatar National Convention Centre, Room 105, Doha, Qatar
Past event
Seminar
Henrique Pita Barros presents The power of dialogue: Evidence from a field experiment in Mozambique
Wed, 1 March 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Kunal Sen discusses COVID-19 and subnational state capacity in India

Kunal Sen delivers a seminar on key findings from the UNU-WIDER research project COVID-19 and subnational state capacity in India at the School of Development Studies, Ambedkar University in Delhi, India. The project's detailed studies of the...

Thu, 23 February 2023
School of Development Studies, Ambedkar University, Room 301, Admin Block, Kashmere Gate Campus, Delhi, India
Past event
Seminar
Marinella Leone on What drives parental investments in early childhood
Wed, 8 February 2023
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Andreas de Barros on Large-scale efforts to improve teaching and child learning in India
Wed, 14 December 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
Photo: Alex Fedorenko The challenge of creating better jobs in developing countries
Wed, 14 December 2022 – Thu, 15 December 2022
Cape Town, South Africa
Past event
Seminar
Sandra Sequeira on the economics of displacement in Mozambique
Wed, 7 December 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Xiaobing Wang on finding common prosperity in China
Wed, 30 November 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Eleonora Nillesen on Breaking down menstrual barriers in Bangladesh
Wed, 23 November 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
International Research Conference on the Effectiveness of Development Cooperation

United Nations University World Institute for Development Economics Research (UNU-WIDER), the Global Partnership for Effective Development Co-operation (GPEDC), and the European Commission (DG INTPA), is jointly organizing an international research...

Thu, 17 November 2022 – Fri, 18 November 2022
Sheraton Brussels Airport Hotel, Brussels, Belgium
Past event
Seminar
Albert Kwame Osei-Owusu on Assessing Africa’s position and prospects in global dematerialization
Wed, 16 November 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Ciprian Domnisoru on the impact of female teachers on female students' lifetime well-being
Wed, 2 November 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
Debt and innovative finance in developing countries
Thu, 27 October 2022 – Fri, 28 October 2022
Online and at Bank of Finland , Helsinki, Finland
Past event
Seminar
Giulia Mascagni on Tax compliance in Rwanda: evidence from two large scale field experiments
Wed, 26 October 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Arjan Verschoor on Boosting recycling behaviour among urban households in Peru
Tue, 25 October 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Gindo Tampubolon on Social injustice under climate shocks to persons with disability
Wed, 12 October 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
Reducing inequality – the great challenge of our time
Wed, 5 October 2022 – Fri, 7 October 2022
Universidad de los Andes, Carrera 1, Calle 18a, Bogotá, Colombia
Past event
Seminar
Christine Valente on Subjective expectations and demand for contraception
Wed, 21 September 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Nauro Ferreira Campos on the Political U: New evidence on democracy and income
Tue, 20 September 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Gabriela Zapata on the role of the family of origin in shaping inequality of opportunity in Chile
Wed, 7 September 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Vanessa Carrión-Yaguana on labor regulations and formal employment

Vanessa Carrión-Yaguana will present at the WIDER Seminar Series on 31 August 2022. Labor regulations and formal employment: Evidence from Ecuadorian firms in the Galapagos Islands Abstract The Special Regimen of the Galapagos Province´s Organic Law...

Wed, 31 August 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Arnab K. Basu on differential health reporting error amongst older adults in India

Arnab K. Basu will present at the WIDER Seminar Series on 24 August 2022. Differential health reporting error amongst older adults in India Abstract Leveraging a unique dataset – the Longitudinal Ageing Study in India (LASI) – we study the...

Wed, 24 August 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
CEEG Seminar Series: Economic growth of Mozambique and its interaction with the environment

On Wednesday 24 August 2022, Mônica Magaua, PhD candidate at the Faculty of Economics of the University of Eduardo Mondlane (UEM), will present her recent study on the economic growth in Mozambique and its interaction with the environment. The...

Wed, 24 August 2022
Faculty of Economics, Auditorium University of Eduardo Mondlane (UEM), Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
Seminar
Nancy Chau on the push and pull forces of migrant border crossing

Nancy Chau will present at the WIDER Seminar Series on 17 August 2022. On the push and pull forces of migrant border crossing: The role of family networks Abstract Do traditional push and pull forces of migration influence the locational choice of...

Wed, 17 August 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Health, development, and institutional factors: the Mozambique case

On 17 August 2022, the Faculty of Economics of the University of Eduardo Mondlane (UEM) organizes the third session of the cycle of debates on institutional development and economic development in Mozambique. In this session, entitled ‘Health...

Wed, 17 August 2022
Online, Maputo, Mozambique
Past event
Seminar
CEEG Seminar Series: The role of mobile money in reducing economic inequality in Mozambique

On Wednesday 10 August 2022, Moisés Siúta, PhD candidate at the University of Cape Town, will present his recent study on the role of mobile money in reducing economic inequality in Mozambique. The seminar is part of the CEEG Seminar Series...

Wed, 10 August 2022
Faculty of Economics, Auditorium University of Eduardo Mondlane (UEM), Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
Seminar
CEEG Seminar Series: Data availability for research

On Wednesday 29 of June 2022, Dr. Firmino Guliche, researcher and lecturer at the Faculty of Economics, Eduardo Mondlane University (UEM), will give a presentation on 'Data availability for research'. The seminar is part of the CEEG Seminar Series...

Wed, 29 June 2022
Faculty of Economics, Auditorium University of Eduardo Mondlane (UEM), Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
Seminar
Miri Stryjan on loan repayment flexibility and firm profits: experimental evidence from Uganda
Wed, 22 June 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Leonard Wantchekon on externalities of colonial schools and social mobility
Fri, 17 June 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Conference
20th Annual Nordic Conference in Development Economics

The 20th Nordic Conference in Development Economics (NCDE 2022) will be held in Helsinki on June 15-16, 2022. This yearly conference serves as a meeting point for development economists active in the Nordic countries, but is also targeted more...

Wed, 15 June 2022 – Thu, 16 June 2022
Economicum, Arkadiankatu 7, Helsinki, Finland
Past event
Seminar
Jari Eloranta on Beyond guns and butter: Finnish Central Government spending patterns in the 20th Century
Wed, 8 June 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
CEEG Seminar Series: Bankruptcy prediction model for the banking sector in Mozambique

On Wednesday 1 June 2022, Reis Castigo Intupo, PhD candidate at the Faculty of Economics of the University of Eduardo Mondlane (UEM), will present his recent study entitled ‘Bankruptcy prediction model for the banking sector in Mozambique’. The...

Wed, 1 June 2022
Faculty of Economics, Auditorium University of Eduardo Mondlane (UEM), Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
Seminar
Sustainable cities discussion forum: SDG8
Tue, 31 May 2022
Helsinki City Hall, Pohjoisesplanadi 11-13, Helsinki, Finland
Past event
Seminar
CEEG Seminar Series: From mining to cryptocurrency exchanges

On Wednesday 25 May 2022, Celestino Joanguete, UEM, will discuss the opportunities and risks of cryptocurrencies in his presentation entitled ‘From mining to cryptocurrency exchanges’. The seminar is part of the CEEG Seminar Series, organized under...

Wed, 25 May 2022
Faculty of Economics, Auditorium University of Eduardo Mondlane (UEM), Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
Seminar
K.A.S. Murshid on The Odds Revisited: Overcoming Underdevelopment - Lessons from the Bangladesh Journey
Tue, 24 May 2022
Online, Katajanokanlaituri 6 B, 00160, Helsinki, Finland
Past event
Seminar
Launch of the Uganda Revenue Authority secure research lab
Thu, 19 May 2022
Protea Hotel by Marriott, Kampala, Uganda
Past event
Conference
The puzzle of peace – towards inclusive development in fragile contexts
Mon, 16 May 2022 – Tue, 17 May 2022
Scandic Marina Congress Center, Katajanokanlaituri 6, Helsinki, Finland
Past event
Seminar
Mark Gradstein on soft skills, parenting styles, and persistent income inequality
Wed, 11 May 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
Institutions and the performance of the agricultural sector in Mozambique

On 11 May 2022, the Faculty of Economics of the University of Eduardo Mondlane (UEM) organizes the second session of the cycle of debates on institutional performance and economic development in Mozambique. In this session, entitled ‘Institutions and...

Wed, 11 May 2022
Online, Maputo, Mozambique
Past event
Seminar
Saher Asad on the impact of improving communication networks on women’s entrepreneurship and empowerment
Wed, 4 May 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
CEEG Seminar Series: The effect of macroeconomic factors on illicit financial flows from the natural resource sector in Mozambique

On Wednesday 4 May 2022, Rafael da Cruz Macamo, CIC BATA (Centro de Iniciativas para la Cooperacion), will present a recent study entitled ‘The Effect of Macroeconomic Factors on Illicit Financial Flows from the Natural Resource Sector in Mozambique’...

Wed, 4 May 2022 – Thu, 5 May 2022
Faculty of Economics, Auditorium University of Eduardo Mondlane (UEM), Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
Seminar
Extractive industries: taxation and revenues V

A fifth researcher seminar on the topic of extractives and domestic revenue mobilisation will be held on 27 April 2022 from 16:00-18:00 (UTC +3). The event, "Fiscal Regime Reforms in the Extractives Sector," will be hosted jointly by UNU-WIDER and...

Wed, 27 April 2022
Online, Helsinki, Finland
Past event
Seminar
Jacqueline Mosomi on working from home and physical proximity during COVID-19 lockdowns: implications for gender inequality in the South African labour market
Wed, 27 April 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland, Helsinki, Finland
Past event
Seminar
Pablo Warnes on transport infrastructure improvements and spatial sorting: evidence from Buenos Aires
Wed, 20 April 2022
Hybrid, Katajanokanlaituri 6 B, Helsinki, Finland
Past event
Seminar
CEEG Seminar Series: The impact of COVID-19 on the nutrition of Mozambican families and children

On Wednesday 20 April 2022, 12:00-15:00 (UTC+2), Margherita Squarcina, PhD student at the University of Florence, will present her ongoing study entitled 'The impact of COVID-19 on the nutrition of Mozambican families and children'. The seminar is...

Wed, 20 April 2022
Online, Av. Julius Nyerere nr. 3453, Main Campus, Maputo, Mozambique
Past event
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