From periphery to core

Measuring agglomeration effects using high-speed rail

Gabriel M. Ahlfeldt, Arne Feddersen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Resumé

We analyze the economic impact of the German high-speed rail (HSR) connecting Cologne and Frankfurt, which provides plausibly exogenous variation in access to surrounding economic mass. We find a causal effect of about 8.5% on average of the HSR on the GDP of three counties with intermediate stops. We make further use of the variation in bilateral transport costs between all counties in our study area induced by the HSR to identify the strength and spatial scope of agglomeration forces. Our most careful estimate points to an elasticity of output with respect to market potential of 12.5%. The strength of the spillover declines by 50% every 30 min of travel time, diminishing to 1% after about 200 min. Our results further imply an elasticity of perworker output with respect to economic density of 3.8%, although the effects seem driven by worker and firm selection.

OriginalsprogEngelsk
TidsskriftJournal of Economic Geography
Vol/bind18
Udgave nummer2
Sider (fra-til)355-390
ISSN1468-2702
DOI
StatusUdgivet - 1. mar. 2018

Fingeraftryk

agglomeration
agglomeration area
elasticity
high German
economic impact
economics
Gross Domestic Product
travel time
travel
firm
worker
market
costs
measuring
speed
effect
Agglomeration
Rail
county
Economics

Citer dette

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From periphery to core : Measuring agglomeration effects using high-speed rail. / Ahlfeldt, Gabriel M.; Feddersen, Arne.

I: Journal of Economic Geography, Bind 18, Nr. 2, 01.03.2018, s. 355-390.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - From periphery to core

T2 - Measuring agglomeration effects using high-speed rail

AU - Ahlfeldt, Gabriel M.

AU - Feddersen, Arne

PY - 2018/3/1

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N2 - We analyze the economic impact of the German high-speed rail (HSR) connecting Cologne and Frankfurt, which provides plausibly exogenous variation in access to surrounding economic mass. We find a causal effect of about 8.5% on average of the HSR on the GDP of three counties with intermediate stops. We make further use of the variation in bilateral transport costs between all counties in our study area induced by the HSR to identify the strength and spatial scope of agglomeration forces. Our most careful estimate points to an elasticity of output with respect to market potential of 12.5%. The strength of the spillover declines by 50% every 30 min of travel time, diminishing to 1% after about 200 min. Our results further imply an elasticity of perworker output with respect to economic density of 3.8%, although the effects seem driven by worker and firm selection.

AB - We analyze the economic impact of the German high-speed rail (HSR) connecting Cologne and Frankfurt, which provides plausibly exogenous variation in access to surrounding economic mass. We find a causal effect of about 8.5% on average of the HSR on the GDP of three counties with intermediate stops. We make further use of the variation in bilateral transport costs between all counties in our study area induced by the HSR to identify the strength and spatial scope of agglomeration forces. Our most careful estimate points to an elasticity of output with respect to market potential of 12.5%. The strength of the spillover declines by 50% every 30 min of travel time, diminishing to 1% after about 200 min. Our results further imply an elasticity of perworker output with respect to economic density of 3.8%, although the effects seem driven by worker and firm selection.

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KW - Density

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KW - Market potential

KW - Productivity

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