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Traffic Fatalities and Economic Growth

Elizabeth Kopits

U.S. Environmental Protection Agency (EPA)

Maureen Cropper

University of Maryland - Department of Economics; Resources for the Future

April 17, 2003

World Bank Policy Research Working Paper No. 3035

Kopits and Cropper examine the impact of income growth on the death rate due to traffic fatalities, as well as on fatalities per motor vehicle and on the motorization rate (vehicles/population) using panel data from 1963-99 for 88 countries. Specifically, they estimate fixed effects models for fatalities/population, vehicles/population, and fatalities/vehicles and use these models to project traffic fatalities and the stock of motor vehicles to 2020.

The relationship between motor vehicle fatality rate and per capita income at first increases with per capita income, reaches a peak, and then declines. This is because at low income levels the rate of increase in motor vehicles outpaces the decline in fatalities per motor vehicle. At higher income levels, the reverse occurs. The income level at which per capita traffic fatalities peaks is approximately $8,600 in 1985 international dollars. This is within the range of income at which other externalities, such as air and water pollution, have been found to peak. Projections of future traffic fatalities suggest that the global road death toll will grow by approximately 66 percent between 2000 and 2020. This number, however, reflects divergent rates of change in different parts of the world - a decline in fatalities in high-income countries of approximately 28 percent versus an increase in fatalities of almost 92 percent in China and 147 percent in India. The authors also predict that the fatality rate will rise to approximately 2 per 10,000 persons in developing countries by 2020, while it will fall to less than 1 per 10,000 in high-income countries.

This paper - a product of Infrastructure and Environment, Development Research Group - is part of a larger effort in the group to study the externalities associated with motorization.

Number of Pages in PDF File: 43

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Date posted: December 23, 2004  

Suggested Citation

Kopits, Elizabeth and Cropper, Maureen, Traffic Fatalities and Economic Growth (April 17, 2003). World Bank Policy Research Working Paper No. 3035. Available at SSRN: http://ssrn.com/abstract=636397

Contact Information

Elizabeth Kopits
U.S. Environmental Protection Agency (EPA) ( email )
Ariel Rios Building
1200 Pennsylvania Ave., N.W.
Washington, DC 20460
United States
Maureen L. Cropper (Contact Author)
University of Maryland - Department of Economics
College Park, MD 20742
United States
Resources for the Future ( email )
1616 P Street, NW
Washington, DC 20036
United States
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