📚 Policies to Correct Balance of Payments Disequilibrium | 纠正国际收支失衡的政策选择
In international economics, the balance of payments records a country's transactions with the rest of the world, including the current account and the financial/capital account. A balance of payments disequilibrium occurs when there is a persistent deficit or surplus in these accounts. A persistent current-account deficit, for example, may make a country unable to sustain its purchases of imports and may reduce investor confidence.
在国际经济学中，国际收支记录一国与世界其他国家的全部交易，包括经常账户与金融/资本账户。当这些账户出现持续性赤字或盈余时，便形成国际收支失衡。例如，持续的经常账户赤字可能使一国难以维持进口购买，并削弱投资者信心。
Because external imbalances can be costly, policymakers seek to correct them. This article examines the main policy options: expenditure-changing policies, expenditure-switching policies, direct controls and supply-side policies, and discusses how to evaluate their effectiveness.
由于外部失衡代价高昂，政策制定者需要加以纠正。本文将考察主要的政策选择：支出变更政策、支出转换政策、直接管制和供给侧政策，并讨论如何评估其有效性。
1. What Is Balance of Payments Disequilibrium? | 什么是国际收支失衡？
The balance of payments is composed of the current account, the capital account and the financial account. A disequilibrium is more than a temporary fluctuation: it is a persistent imbalance that cannot be financed without using reserves or borrowing heavily. A current-account deficit may be caused by low export competitiveness, an overvalued exchange rate, high domestic inflation, or structural weaknesses such as poor infrastructure.
国际收支由经常账户、资本账户和金融账户组成。失衡不只是暂时波动，而是无法以储备或大量借债持续融资的长期不平衡。经常账户赤字可能源于出口竞争力弱、汇率高估、国内通胀率较高，或基础设施落后等结构性问题。
An overvalued exchange rate makes exports expensive and imports artificially cheap, worsening the current account.
汇率高估使出口昂贵而进口人为便宜，从而加剧经常账户逆差。
High domestic inflation raises the price of exports relative to foreign goods, reducing export demand.
国内高通胀提高了出口商品相对于外国商品的价格，削弱了出口需求。
Structural problems, such as a narrow export base or a low level of technology, limit a country's ability to earn foreign exchange.
结构性问题，如出口基础狭窄或技术水平低，限制了一国赚取外汇的能力。
A surplus, by contrast, may reflect an undervalued exchange rate, high competitiveness, or deliberate restrictions on imports. While a surplus is sometimes seen as positive, it can create inflationary pressure and trade tensions.
相比之下，盈余可能源于汇率低估、竞争力强，或刻意限制进口。虽然盈余有时被视为有利，但可能造成通胀压力和贸易摩擦。
2. Policy Objectives: External Balance and Trade-offs | 政策目标：外部平衡与权衡
The primary objective is to restore external balance, usually defined as a sustainable current-account position. However, governments also pursue internal balance, meaning full employment and price stability. Policies that improve the current account may conflict with these domestic goals.
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