I have led policy dialogues with revenue authorities and finance ministries in several African countries. I have contributed to policy engagements organised by the African Union, Tax Justice Network Africa, Platform for Collaboration on Tax, OECD Tax, UNDP Tax for SDGs, UNCTAD, Addis Tax Initiative, UNECLAC and others. These efforts are geared towards fostering evidence-based policy-making and driving sustainable economic growth.

Policy work

The Critical Need for Data in Understanding Tax Expenditures. Tax Expenditures Lab Flagship Report Geneva 2025.

Enhancing DRM in a reformed IFA. WIDER Background Note. Helsinki 2025.

Lifting each other up - Improving Skill & Capacities Across Tax Policy & Administration. Financing Policy Brief Series 2025.

Raising Revenues to Another Level with Data and Modelling.  Financing Policy Brief Series 2025.

Improving Tax Expenditure Reporting to Enhance TE Policy Making. Think20 Policy Brief. Brazil 2024. [News]

Taxing for tomorrow: Aligning fiscal policies with the SDGs. UNEN Policy Brief. New York 2024. [News]

Tax Expenditures and Female Labour Force Participation. Think20 Policy Brief. Indonesia 2022.

Expanding a wage subsidy during lockdown. WIDER Background Note. Helsinki 2022.

Gender and the South African labour market. WIDER Working Paper. Helsinki 2019. [Blog]

Tax Research in South Africa. WIDER Working Paper 2019. Helsinki 2019. 

In the media

Tax data can be mined to shape better tax policies. South Africa, Uganda and Zambia show how - The Conversation (2026)

How Institutions are embedding new tools and and approached - WIDER Angle (2026)

How our tax gap research fed into the 2026 Zambia Budget - WIDER Angle (2025)

Youth unemployment and the illusion of progress - WIDER Angle (2025)

Bridging the Tax Gap: a crucial step towards sustainable development - Addis Tax Initiative (2025)

Walking the road to the 4th Financing for Development Conference & beyond - WIDER Angle (2025)

Its time to prioritize ethical practices in global development research - Global Dev (2025)

Improving tax administration & data access - contribution to the FfD4 Elements Paper - WIDER Angle (2024)

Improving tax systems for domestic revenue mobilization - News Central TV (2023) 

Bootcamp for better tax policies in Africa - WIDER Angle (2022)

Strike hits South Africa's industrial sector - DW media  (2021)

Using tax data to inform economic policy in South Africa – WIDER Angle (2021) 

How a data revolution in South Africa can help address gender inequality – WIDER Angle (2020) 

The power of data to impact change – SAfm Life Happens (2020)