2013年-IMF国际货币组织全球_Export_Performance_in_Europe_What_Do_We_Know_from_Supply_Links__52页_1mb

Summary of "Export Performance in Europe: The Role of Vertical Supply Links"

Core Content

This paper examines the role of vertical supply links in shaping export performance in Europe, using value added (VA) trade statistics to better understand the true contribution of exports to economic growth and employment. It highlights how the increasing complexity of global production networks has altered the way value is created and distributed across countries, especially in the context of intra-industry trade and fragmented production.

The study uses a decomposition methodology developed by Koopman et al. (2011) to break down gross exports into five categories based on the origin of value added:

1. Domestic VA in final goods
2. Domestic VA in intermediate goods not processed for further exports
3. Domestic VA in intermediate goods processed for exports to third countries
4. Domestic VA exported to another country and then re-exported to a third country
5. Foreign VA imported as inputs into exports

This decomposition allows for a more accurate assessment of export competitiveness and the impact of foreign value added on domestic export growth.

Main Findings

• Supply links have become a dominant feature of European export growth, with a significant increase in the share of foreign VA in total exports.
• Domestic VA share declined over 1995–2008, especially in manufacturing, from 72% to 62%, while the foreign VA share increased from 42% to 54%.
• In services, the share of supply link-related exports also rose, from 32% to 42%, indicating a similar trend in the services sector.
• Downstream activities (i.e., foreign VA) dominate supply link exports, suggesting that many European countries are increasingly acting as assemblers or processors rather than full producers.
• Export orientation (measured as domestic VA exports to GDP) varied significantly across European countries, with some showing strong growth in this ratio, while others showed a decline.

Key Insights

• Export growth is influenced by foreign VA. The paper finds a positive and statistically significant relationship between foreign VA growth and domestic VA export growth, even when considering up to a 5-year lag.
• Countries with strong supply link integration (e.g., Germany, Hungary, Czech Republic) have shown higher export orientation and greater competitiveness.
• Geographic proximity, cost differentials, and similar industrial structures are key factors in the formation of supply links.
• Common borders, free trade agreements, and shared languages enhance the likelihood of establishing supply links.
• Lower unit labor costs in a country encourage firms to locate downstream production there, as evidenced by the positive coefficient of the unit labor cost differential.
• Non-tariff barriers (e.g., border administration, transportation infrastructure) negatively impact supply link formation, though these variables are not included in the regression due to limited time-series data.

Policy Implications

• Countries seeking to increase export competitiveness must focus on integrating into global and regional supply chains.
• Structural reforms that reduce non-tariff barriers and improve infrastructure can help facilitate deeper supply link integration.
• Export orientation is not uniform across Europe, and policy responses should be tailored to the specific export strategies and industrial structures of each country.
• Firms that rely on downstream activities benefit from foreign value added, but this also means their domestic value creation may be less significant for economic and employment growth.

Structure of the Paper

1. Motivation

   • Highlights the shift in production to vertical supply chains and the limitations of gross trade statistics.
   • Emphasizes the need for value added decomposition to understand export performance accurately.

2. Dissecting Gross Exports in Europe

   • Uses the Koopman decomposition method to break down exports into domestic and foreign VA components.
   • Shows the decline in domestic VA share and increase in foreign VA share in both manufacturing and services.

3. What Factors Help Countries Establish Links?

   • Empirically investigates the role of gravity variables and structural variables in the formation of supply links.
   • Finds that physical proximity, cost differentials, similar industrial structures, and free trade agreements are important drivers of supply link development.

4. Supply Links and Revealed Comparative Advantage

   • Analyzes how comparative advantage is affected by supply link integration over time.
   • Reveals that countries with strong supply link integration have greater export competitiveness and more sustainable growth.

5. Conclusion

   • Concludes that supply links are central to export growth in Europe.
   • Suggests that export success depends on both the position in the VA chain and the ability to sustain and expand vertical relationships over time.

Key Tables and Figures

• Table 1: Shows the performance of domestic VA exports in Europe by GDP share increase.
• Table 2: Summarizes the impact of foreign VA growth on domestic VA growth across different lags.
• Table 3: Provides regression results of the determinants of foreign VA.
• Table 4: Standardized (Beta) coefficients from regression analysis.
• Figure 1: Compares real GDP and exports growth in the world and Europe.
• Figure 3: Decomposition of gross exports into VA components.
• Figure 4: Shows the role of domestic VA and supply links in export growth.
• Figure 5: Displays domestic VA exports in Europe from 1995 to 2008.
• Figure 6: Compares foreign VA growth and domestic VA exports.
• Figure 7: Shows the relationship between foreign VA and non-tariff barriers.

Keywords

• Vertical Integration
• Supply Link
• Value Added
• Comparative Advantage
• Gravity Model
• Trade Flows
• Non-Tariff Barriers

JEL Classification

• F14: Economic Integration
• F15: Economic Integration
• F23: International Factor Mobility
• L22: Firm Behavior: Empirical Analysis

Authors

• Jesmin Rahman
• Tianli Zhao

Summary

The paper provides a comprehensive analysis of how vertical supply links have transformed export performance in Europe. It argues that gross trade statistics are not reliable indicators of true export competitiveness and that value added trade statistics offer a more accurate picture. The study identifies physical proximity, cost differentials, similar industrial structures, and free trade agreements as key drivers of supply link formation. It also emphasizes the importance of downstream activities in export growth and the need for structural reforms to improve non-tariff trade environment and infrastructure. The findings suggest that export success is closely tied to integration into global and regional supply chains, and that countries with strong domestic VA are better positioned to benefit from export growth.