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Occupant death: a study with directed graphs

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  • Jae-Whak Roh
  • David Bessler

Abstract

We apply directed graphs to an empirical analysis of traffic occupant fatalities based on a model by Crandall. In this paper, we use Crandall's data on US traffic fatalities for the period 1947-81 and extend the sample to include 1982-93. Based on the 1947-81 annual data, directed graph algorithms reveal that occupant traffic deaths are directly caused by income, vehicle miles, and safety devices. Vehicle mileage is caused by income and rural driving. Estimation is conducted using three stage least squares regression. Results show a difference between the traditional regression methodology and causal graphical analysis. We also find that forecasts from the directed graph model outperform forecasts from the regression-based models, in terms of mean squared forecasts error.

Suggested Citation

  • Jae-Whak Roh & David Bessler, 1999. "Occupant death: a study with directed graphs," Applied Economics Letters, Taylor & Francis Journals, vol. 6(5), pages 303-306.
  • Handle: RePEc:taf:apeclt:v:6:y:1999:i:5:p:303-306 DOI: 10.1080/135048599353285
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    References listed on IDEAS

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    5. Jan Fagerberg & Bart Verspagen, 1996. "Heading for Divergence? Regional Growth in Europe Reconsidered," Journal of Common Market Studies, Wiley Blackwell, vol. 34(3), pages 431-448, September.
    6. Kaldor, Nicholas, 1970. "The Case for Regional Policies," Scottish Journal of Political Economy, Scottish Economic Society, vol. 17(3), pages 337-348, November.
    7. Helmut Hofer & Andreas Worgotter, 1997. "Regional Per Capita Income Convergence in Austria," Regional Studies, Taylor & Francis Journals, vol. 31(1), pages 1-12.
    8. Gudgin, Graham, 1995. "Regional Problems and Policy in the UK," Oxford Review of Economic Policy, Oxford University Press, vol. 11(2), pages 18-63, Summer.
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    Cited by:

    1. Miljkovic, Dragan & Dalbec, Nathan & Zhang, Lei, 2016. "Estimating dynamics of US demand for major fossil fuels," Energy Economics, Elsevier, vol. 55(C), pages 284-291.
    2. Perez, Stephen J. & Siegler, Mark V., 2006. "Agricultural and monetary shocks before the great depression: A graph-theoretic causal investigation," Journal of Macroeconomics, Elsevier, pages 720-736.

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