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Boosted income, busted environment: a tradeoff in the wider economic impacts of transport corridor investments?

Published online by Cambridge University Press:  09 January 2024

Martin Melecky
Affiliation:
The World Bank, Washington, DC, USA Faculty of Economics, VSB-Technical University of Ostrava, Ostrava, Czech Republic
Siddharth Sharma*
Affiliation:
The World Bank, Washington, DC, USA
Hari Subhash
Affiliation:
Kinetica, Washington, DC, USA
*
*Corresponding author: Siddharth Sharma; Email: [email protected]

Abstract

The literature on the impacts of transport corridors points to a tradeoff between income and environmental quality. We estimate the impacts of India's Golden Quadrilateral and North-South-East-West highways on income and environmental quality to test this tradeoff hypothesis. Applying the difference-in-difference method to district level data, we find that the highways increased both local income and particulate matter air pollution. The estimated increase in air pollution is robust to using an instrumental variables approach, while that in income is not. Examining heterogeneity in these impacts, we find that the income–environment tradeoff was less steep in districts with initially higher educational attainment rates because they experienced a smaller increase in air pollution due to the highways.

Type
Research Article
Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press

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