Distance and Political Boundaries: Estimating Border Effects under Inequality Constraints
Roberto Rigobon () and
Leandro Zipitria ()
No 18122, NBER Working Papers from National Bureau of Economic Research, Inc
The "border effect" literature finds that political borders have a very large impact on relative prices, implicitly adding several thousands of miles to trade. In this paper we show that the standard empirical specification suffers from selection bias, and propose a new methodology based on quantile regressions. Using a novel data set from Uruguay, we apply our procedure to measure the segmentation introduced by city borders. City borders should matter little for trade. We find that when the standard methodology is used, two supermarkets separated by 10 kilometers across two different cities have the same price dispersion as two supermarkets separated by 30 kilometers within the same city; so the city border triples the distance. When our methodology is used, the city border effect becomes insignificant. We further test our methodology using online prices for the largest supermarket chain in the country, and show that the "online border" is equivalent to the average distance from the online warehouse to each of the offline stores.
JEL-codes: F40 F41 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-lam, nep-opm, nep-pol and nep-ure
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Published as Fernando Borraz & Alberto Cavallo & Roberto Rigobon & Leandro Zipitria, 2016. "Distance and Political Boundaries: Estimating Border Effects under Inequality Constraints," International Journal of Finance & Economics, vol 21(1), pages 3-35.
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Journal Article: Distance and Political Boundaries: Estimating Border Effects under Inequality Constraints (2016)
Working Paper: Distance and Political Boundaries. Estimating Border Effects under Inequality Constraints (2012)
Working Paper: Distance and Political Boundaries:Estimating Border Effects under Inequality Constraints (2012)
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