2012年-IMF国际货币组织全球_Tariff_32页_1mb

报告摘要

Summary of "Tariff-Tax Reforms in Large Economies"

Core Content

This paper investigates the welfare implications of tariff-tax reforms in a calibrated two-region global New Keynesian model that includes a developing and an advanced region. It focuses on the effects of revenue-neutral and point-for-point reforms, highlighting the international transmission channels and macroeconomic consequences of such policies. The study is significant as it moves beyond the traditional small open economy framework and analyzes the impact on domestic, foreign, and global welfare.

Main Points

Trade Liberalization Trends:
Trade barriers have been significantly reduced in recent decades, especially in the context of WTO negotiations and regional trade agreements. The Uruguay Round saw average applied tariff reductions of about 6% for industrial goods, with some countries (e.g., India, Iceland, Sri Lanka) experiencing reductions of over 14%.
Theoretical Justification:
Trade liberalization is theoretically justified as it enhances economic efficiency and growth. However, developing countries often resist further tariff reductions due to revenue concerns, as they may not have the capacity to collect income and consumption taxes efficiently.
Welfare Impact of Reforms:
- Revenue-neutral reforms: Lowering tariffs and compensating with higher consumption taxes may reduce domestic welfare due to terms-of-trade deterioration, even though it increases output and welfare in advanced countries and global welfare.
- Point-for-point reforms: These reforms, where tariffs are cut and consumption taxes are increased by the same amount, can reduce both domestic and global welfare, as the terms-of-trade effect and higher consumer prices negatively impact domestic output and welfare.
Role of Nominal Rigidities:
The paper incorporates price stickiness, a key feature of New Keynesian models, which contrasts with earlier studies that assumed flexible prices. This has important implications for adjustment dynamics, as price stickiness alters the international output transmission and the expenditure-switching effect of exchange rate changes.
Comparative Results with Literature:
- In small open economy models, revenue-neutral reforms typically improve welfare.
- In contrast, this paper shows that in large economies, terms-of-trade effects and imperfect competition can dominate the positive welfare gains from trade liberalization, leading to negative welfare outcomes.
- The point-for-point reform is shown to have worse welfare outcomes than the revenue-neutral reform, as it leads to a reduction in both domestic and global welfare.

Key Findings

Domestic Welfare:
A revenue-neutral tariff-tax reform in a large economy may reduce domestic welfare due to terms-of-trade deterioration and higher prices for imported goods, which outweigh the benefits of increased output.
Foreign and Global Welfare:
- The foreign welfare increases due to higher consumption and better terms-of-trade.
- Global welfare also improves, as the positive foreign welfare effect offsets the negative domestic effect.
Policy Implications:
- The effectiveness of tariff-tax reforms depends heavily on the size of the economy and the degree of informality.
- Fiscal consolidation in industrialized countries may lead to tariff reductions, but they would need to be compensated by other tax increases.
- Point-for-point reforms are more policy-relevant in the current environment, as they allow for simpler communication and fiscal adjustments.
Model Structure:
- The model is a two-region global New Keynesian model with imperfect competition.
- It incorporates nominal rigidities, distortionary consumption taxes, and import tariffs.
- The law of one price holds for producer prices, but not for consumer prices due to tariffs.

Conclusion

The paper concludes that tariff-tax reforms in large economies have complex and non-linear welfare effects, primarily due to terms-of-trade changes and price stickiness. While such reforms are welfare-enhancing in small open economies, they may reduce domestic welfare in large economies. The point-for-point reform is shown to be even more detrimental, as it leads to a decline in both domestic and global welfare. These findings are important for policy design, especially in the context of international trade negotiations and fiscal policy coordination.

Key Information

Model Type: Two-region global New Keynesian model with imperfect competition.
Reforms Studied:
- Revenue-neutral tariff-tax reform: Tariff reduction compensated by consumption tax increase.
- Point-for-point tariff-tax reform: Equal tariff and consumption tax changes.
Welfare Effects:
- Revenue-neutral reform: Domestic welfare may fall, foreign and global welfare improve.
- Point-for-point reform: Domestic and global welfare fall, foreign welfare increases.
Price Stickiness: A key feature of the model that affects output dynamics and welfare outcomes.
Policy Relevance: The paper evaluates the IMF's standard recommendation of revenue-neutral reforms, highlighting their costs and benefits in the context of large economies.

References

Finger, Ingco, and Reincke (1996): Tariff reductions under the Uruguay Round.
Keen and Lightart (2002, 2005): Analysis of point-for-point reforms.
Naito (2006): Dynamic endogenous growth model with revenue-neutral reforms.
Ligthart and van der Meijden (2011): Dynamic model with endogenous labor supply and sector-specific capital.
The Economist (2011): Role of developing countries in global trade.