2014年-世界发展银行全球_Preferential_Market_Access_Design___Evidence_and_Lessons_from_African_Apparel_Exports_to_the_United_States_and_the_European_Union_25页_565kb

Summary of "Preferential Market Access Design: Evidence and Lessons from African Apparel Exports to the United States and the European Union"

Core Content

This paper examines the impact of preferential market access rules of origin (RoO) on the export performance of apparel from least developed countries (LDCs) to the United States and the European Union. It uses a quasi-experimental design based on the U.S. Africa Growth Opportunity Act (AGOA) and the EU's Everything But Arms (EBA) and Cotonou preferences to estimate the effects of simplifying RoO requirements on export volume and product diversity.

Main Points

• Preferential Access and RoO: LDCs rely on preferential market access to gain better terms in developed markets. To qualify, they must meet RoO requirements, which are often complex and costly. These requirements can act as protectionist tools, limiting market access for LDCs.

• AGOA and EBA/Cotonou: The AGOA, introduced in 2000, provides duty-free access to the U.S. market for 22 African countries, with a simplified RoO (single transformation: fabric → apparel) starting in 2001. In contrast, the EU continues to require a double transformation (yarn → fabric → apparel) in the same country, making its RoO more restrictive.

• Empirical Evidence: Panel data analysis for the 1996–2004 period shows that the simplification of RoO under AGOA led to a 168% increase in export volume for the top seven beneficiaries, significantly outperforming the 44% growth from preferential access alone. This indicates that the simplification of RoO had a catalytic effect on export performance.

• Product Diversity: The AGOA special regime also contributed to greater product diversity in U.S. apparel exports compared to the EU, as the number of export varieties grew more rapidly under the simplified rules.

• Cost of RoO: The paper highlights that RoO requirements are costly and can reduce the benefits of preferential access. For example, under NAFTA, compliance costs with RoO were estimated to be around 2–3% of the product price.

• Quasi-Experimental Design: The study exploits the asymmetry in RoO design between the U.S. and the EU to isolate the effects of simplification. It shows that export growth diverged significantly between the two markets after the U.S. relaxed its RoO, suggesting that restrictiveness of RoO affects market access more than just the utilization rate.

• Utilization Rates: Despite high utilization rates (97.6% under AGOA and 91.2% under EBA/Cotonou), export volumes and growth rates varied significantly between the two markets. This indicates that utilization rates alone are not sufficient indicators of the real impact of RoO on trade.

• Institutional Factors: The lack of a supply response in some countries is attributed to institutional weaknesses rather than the RoO themselves.

• Econometric Strategy: The authors use a panel regression model that includes a time trend, country fixed effects, and dummy variables for the introduction of the AGOA and the Special Rule. The results show that tariff reductions had a significant effect, but the impact of RoO relaxation was difficult to isolate due to short time series and high volatility.

• Structural Model Alternative: A structural model approach is suggested to capture the heterogeneous firm responses to changes in RoO and tariff regimes, but such data are not available for the AGOA countries.

Key Information

• AGOA Special Rule: Introduced in 2001, it allowed the use of fabric from any origin in the production of apparel, effectively reducing the RoO complexity.

• EU RoO: Required a double transformation process, making it more restrictive and costly for LDCs.

• Export Growth: The AGOA special rule led to a 168% increase in export volume for the top seven beneficiaries, compared to 44% growth from preferential access alone.

• Product Diversity: The number of export varieties increased more rapidly in the U.S. under AGOA, suggesting that simpler RoO promote diversity.

• Data and Methodology: The analysis uses HS-6-digit-level data for apparel exports, and the utilization rate is defined as the share of imports entering under preferential status. The study also acknowledges the limitations of the data, including short time spans and year-to-year fluctuations, which hinder precise estimation of the RoO impact.

• Policy Implications: The findings suggest that simplifying RoO is crucial for enhancing market access and export performance for LDCs. The paper calls for a better understanding of the restrictiveness of RoO in order to improve trade policy design.

Conclusion

The paper provides empirical evidence that simplifying rules of origin under preferential trade agreements significantly enhances export performance and product diversity for LDCs. It emphasizes the importance of RoO design in shaping trade outcomes and suggests that more research is needed to fully understand the dynamic effects of RoO on trade flows.