A new paper on the Vox Web site by the European economists Rafael
Lalive, Simon Luechinger and Armin Schmutzler on the effects of
increased rail service makes clever use of natural experiments created
by changes in German ownership and regulation. The results aren't that
surprising — more frequent rail service sharply reduces pollution and
other costs associated with driving — but it's good to have this kind of
solid work to back our intuitions.
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