Journal of Economic Policy Reform · 2010 · 59 citations · 37 references
Public AffairsAgricultural EconomicsEconomicsAgricultural TradeInternational TradeInternational Trade PolicyAgricultural Policy AnalysisComparative AdvantageEffect On TradeSample Selection ModelsTrade LiberalizationTrade PolicyAgricultural Trade EffectsAgricultural Trade FlowsAgricultural Trade LiberalizationEuropean Union EconomicsGravity Model Of TradeModel Selection BiasSample Selection CorrectionSelection Bias Assessment
We assess the impact on agricultural trade of European Union (EU) trade policies, using a gravity model based on disaggregated trade flows from 161 developing countries (DCs) to 15 EU member countries. We use a sample selection framework to account for potential selection bias of positive trade flows and provide an explicit measure for relative preference margins. From a policy perspective, our results debunk some of the most widespread criticisms of preferential policies: EU preferences matter and have a positive impact on DCs agricultural exports at both the extensive and intensive margins, although with significant differences across sectors.
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Sample Selection Bias as a Specification Error
James J. Heckman · Econometrica · 1979 · 28.9K citations
Technology, Geography, and Trade
Jonathan Eaton, Samuel Kortum · Econometrica · 2002 · 4.4K citations