Policy Brief

Tributação dos Ricos nos Países de Baixo Rendimento: Porque é Importante e Como Fazê-lo

January 2025
Giovanni Occhiali, Giulia Mascagni, Wilson Prichard, Martin Hearson

Research in Brief

How Might the National Revenue Authority of Sierra Leone Enhance Revenue Collection by Taxing High Net Worth Individuals?

September 2024
Jalia Kangave, Giovanni Occhiali, Ishmail Kamara, Evert-jan Quak

Research in Brief

An Overlooked Market: Loose Cigarettes, Informal Vendors, and Their Implications for Tobacco Taxation

September 2024
Max Gallien, Evert-jan Quak, Giovanni Occhiali, Hana Ross

Working Paper

Taxation of Fisheries in Kenya: Neither Improving Management nor Raising Revenue?

August 2024
Giovanni Occhiali, Olivia Okello

Journal Article

Obstacles and appeal of environmental taxation: Insights from sub-Saharan Africa

August 2024
Giovanni Occhiali

Research in Brief

Implementation Obstacles and Political Appeal of Environmental Taxes in Sub-Saharan Africa: Reflections from Selected Countries

July 2024
Giovanni Occhiali, Evert-jan Quak

In person

15 October 2026 – 09:00

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Timezone: Bangkok time, GMT+7

Tax expenditures, including exemptions, deductions, credits and reduced rates, are among the most widely used tax policy tools, yet they are often costly, poorly governed and subject to limited scrutiny. Revenue foregone through tax expenditures worldwide amounts to around USD

Virtual

19 May 2026 – 15:05

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Timezone: Europe/London

Organised on the sidelines of the Global Partnerships Conference, our side event will provide practical lessons drawn from research on tax reform in lower-income countries.

Virtual

9 April 2026 – 13:00

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Timezone: Europe/London

This webinar, hosted by ATI’s Consultative Group 4, will look into the role of Official Development Assistance in building up the capacity of “accountability stakeholders” — including civil society, academia, and the media — around domestic revenue mobilisation.