Plausibly Exogenous [1566] - Agglomeration Effects (05/17/2024)

LHS Variable
GDP

RHS Variable
Economic density

Source of Exogenous Variation
German high-speed rail (HSR) connecting Cologne and Frankfurt which provides variation in access to surrounding economic mass

- Ahlfeldt and Feddersen (2018), “From periphery to core: measuring agglomeration effects using high-speed rail”