
Biography
Melvin Siagian is a PhD student in the Department of International Development, at King's College London.
His PhD project analyzes whether environmental tax reform in Indonesia yields a double dividend, marked by improved environmental quality alongside positive trends in macroeconomic conditions, specifically economic growth, poverty, inequality, and unemployment.
He holds a Master of Management in Finance from the University of Indonesia and earned a bachelor's degree in accounting from the University of North Sumatra, Indonesia. Melvin worked as a tax analyst for 16 years at the Directorate of Data and Information, Directorate General of Taxes, Ministry of Finance, Indonesia.
Research
Thesis title: 'The Impact of Environmental Tax Reform on the Emissions, Economy, Poverty, Inequality and Unemployment in Indonesia'
This research investigates the potential of environmental tax reform in Indonesia to achieve a double dividend, where improvements in environmental quality are accompanied by positive macroeconomic outcomes. Specifically, the study examines the impact of carbon tax on environmental quality, economic growth, poverty, inequality, and unemployment. The findings of this research will contribute to the ongoing debate on the effectiveness of environmental taxation as a policy tool for sustainable development in Indonesia.
PhD supervision
- Principal supervisor: Dr Ben Tippet
- Secondary supervisor: Dr Devika Dutt
Further details
Research

Technology, Inequality, and Development research group
We are an interdisciplinary collective within the Department of International Development with two related concerns: the rise of AI and cutting-edge technologies and inequalities of income, wealth and power.
Research

Technology, Inequality, and Development research group
We are an interdisciplinary collective within the Department of International Development with two related concerns: the rise of AI and cutting-edge technologies and inequalities of income, wealth and power.