Seminars & webinars
29 September 2016

FEEM-IEFE Joint Seminar on: "Effects of the London Congestion Charge on Air Quality: a Regression Discontinuity Approach"


Where: Milan
Location:

Bocconi University,
via Sarfatti, 25
20136 Milan

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Video-conference
at FEEM Venice

How to reach: Google map
Event's Timetable:

h. 12.30 Seminar

Information:

Registration is required. Please confirm your participation to:
IEFE Secretary: iefe@unibocconi.it by Tuesday 27 September.

Speaker:

Marco Percoco, Università Bocconi

Abstract

This paper aims to evaluate the causal effect of the London Congestion Charge on the level of pollution. To this end, we have assembled a unique dataset. This consists of daily observations, concentrating on five pollutants: PM10, O3, CO, NOX, SO2. By using a regression discontinuity design in time series; with thresholds centered on the dates of the introduction of the charge, a negligible and adverse impact of the charge is documented. It emerges that the road pricing scheme has induced a decrease in the concentration O3 in the whole city, a significant decrease in the concentration of PM10 and NOX , in the charged area and an increase in surrounding areas. Similar results, although not significant at conventional levels, are found in the case of CO and SO2. These findings are consistent with an overall increase in traveled kilometers, due to traffic diversion from the charged to the uncharged area. Furthermore, there is an unclear, possibly adverse, impact of increased speed on pollution.

Keywords: London Congestion Charge, Pollution, Regression Discontinuity Design.

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This seminar has been jointly organized by FEEM and IEFE, Bocconi University.
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Effects of the London Congestion Charge on Air Quality: a Regression Discontinuity Approach

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