Spatial Integration and Agricultural Productivity: Quantifying the Impact of New Roads

Tasso Adamopoulos

American Economic Journal: Macroeconomics, 2025, vol. 17, issue 1, 343-78

Abstract: I study the effects of Ethiopia's 1997–2014 road expansion program on agricultural productivity and structural change by combining a quantitative spatial sectoral framework with novel district-level panel data on agricultural production and geocoded transport costs. In the model, the spatial heterogeneity of transport costs affects the distribution of production and mobile inputs across locations and sectors, and the allocation of land across crops within locations. Varying transport costs to their new actual levels, the model delivers substantial structural change, a rise in agricultural productivity one-tenth of the data, and a pattern of productivity gains across districts consistent with the data.

JEL-codes: H54 O13 O18 Q11 Q13 R42 R53 (search for similar items in EconPapers)
Date: 2025
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.aeaweb.org/doi/10.1257/mac.20200149 (application/pdf)
https://doi.org/10.3886/E195703V1 (text/html)
https://www.aeaweb.org/doi/10.1257/mac.20200149.appx (application/pdf)
https://www.aeaweb.org/doi/10.1257/mac.20200149.ds (application/zip)
Access to full text is restricted to AEA members and institutional subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:aea:aejmac:v:17:y:2025:i:1:p:343-78

Ordering information: This journal article can be ordered from
https://www.aeaweb.org/journals/subscriptions

DOI: 10.1257/mac.20200149

Access Statistics for this article

American Economic Journal: Macroeconomics is currently edited by Simon Gilchrist

More articles in American Economic Journal: Macroeconomics from American Economic Association Contact information at EDIRC.
Bibliographic data for series maintained by Michael P. Albert ().