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The unexpected effects of daylight-saving time: Traffic accidents in Mexican municipalities

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  • Salas Rodriguez, Hugo
  • Hancevic, Pedro

Abstract

Approximately 70 countries worldwide implement a daylight-saving time (DST) policy: setting their clocks forward in the spring and back in the fall. The main purpose of this practice is to save on electricity. However, by artificially changing the distribution of daylight, this practice can have unforeseen effects. This document provides an analysis of the impact of DST on traffic accidents in Mexico, using two empirical strategies: regression discontinuity design (RDD) and difference-in-differences (DD). The main finding is that setting the clocks forward an hour significantly lowers the total number of traffic accidents in the country’s metropolitan areas. However, there is no clear effect on the number of fatal traffic accidents.

Suggested Citation

  • Salas Rodriguez, Hugo & Hancevic, Pedro, 2020. "The unexpected effects of daylight-saving time: Traffic accidents in Mexican municipalities," MPRA Paper 101835, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:101835
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    File URL: https://mpra.ub.uni-muenchen.de/101835/1/MPRA_paper_101835.pdf
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    References listed on IDEAS

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    More about this item

    Keywords

    traffic accidents; daylight saving time; difference-in-differences; regression discontinuity; municipalities in Mexico;
    All these keywords.

    JEL classification:

    • D04 - Microeconomics - - General - - - Microeconomic Policy: Formulation; Implementation; Evaluation
    • O18 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Urban, Rural, Regional, and Transportation Analysis; Housing; Infrastructure
    • R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise

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