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Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 01:50:46am WEST

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Daily Overview

Session

Water Quality and Pollution Control
Location: B129
Session Chair: Shuo Yu, UC Berkeley

Presentation 2

Oil Spills, Water Networks, and Local Economic Development

Elena Perra¹, Marco Sanfilippo^2,3, Lorenzo Sileci^4,5

1: University of Barcelona & AQR-IREA; 2: University of Turin, Department of Economics and Statistics "Cognetti de'Martiis"; 3: Collegio Carlo Alberto; 4: IE University, School of Politics, Economics and Global Affairs; 5: Grantham Research Institute on Climate Change and the Environment

Discussant: Leon Bremer (Utrecht University)

This paper quantifies the effect of oil spills on local economic development in Nigeria. We assemble a geo-referenced panel of more than 13,000 oil spills and merge them with satellite indicators of economic activity, poverty, vegetation condition, and migration. We develop a hydrological model that traces downstream contaminant transport, allowing spill exposure to extend beyond the point of discharge. To address endogeneity, we instrument hydrologically defined exposure with the interaction of global oil-price shocks and historical transport costs. Relative to comparable cells, spill-exposed cells exhibit a 7.2-unit decline in night-time lights, an 8.9 percentage-point rise in unlit settlements, and 29 additional residents per 1,000 without electricity. Potential mechanisms include environmental degradation, with a 0.08 km² annual acceleration in deforestation and a 0.43-point decline in NDVI, and a net out-migration of 76 people per 1,000 (per cell-year). Dynamic event-study estimates show that these effects intensify from four to twelve years post-spill.