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Trade, Power, and the New World Economy

Day 3: When Trade Becomes a Weapon

貿易、権力、そして新しい世界経済 ― 第3日:貿易が武器になるとき

Computer chips and a silicon wafer facing dishes of rare-earth ore across a level balance scale on a negotiating table

The most revealing result of the September 24 summit between Donald Trump and Xi Jinping was not a major agreement. There was no breakthrough on tariffs, technology restrictions, or rare-earth supplies. Instead, the two governments extended their trade truce for only two months. The decision looked modest, but it showed something important: neither country was prepared to end the conflict, yet neither wanted to lose control of it.

9月24日のドナルド・トランプと習近平の首脳会談で最も示唆に富む結果は、大きな合意ではありませんでした。関税、技術制限、レアアースの供給について突破口はありませんでした。代わりに、両政府は貿易休戦をわずか2か月延長しました。その決定は控えめに見えましたが、重要なことを示していました。どちらの国も対立を終わらせる準備はできていないものの、どちらもその制御を失いたくはなかったのです。

Each side possesses something the other side finds difficult to replace. The United States can use its strength in advanced semiconductors and chipmaking equipment as leverage. China’s dominant position in rare-earth processing creates a choke point for industries ranging from electric vehicles to defense equipment. The relationship is therefore not simply between one powerful country and one dependent country. Both have ways to cause serious damage.

それぞれの側は、相手側が置き換えにくいものを持っています。アメリカは、先端半導体と半導体製造装置における強みをてことして使えます。レアアース加工における中国の支配的な地位は、電気自動車から防衛装備に至る産業にとってのチョークポイントを生み出しています。したがってこの関係は、単に一つの強い国と一つの依存する国のあいだのものではありません。両者とも深刻な損害を与える手段を持っています。

This produces a strange economic balance. Trade once appeared to make conflict less likely because both countries benefited from cooperation. Today, the same connections can be used for pressure. If the United States restricts technology, China can restrict essential materials. But when either government tries to weaponize trade, its own companies, farmers, and consumers may also pay a price. The weapon can injure the country that uses it.

これは奇妙な経済的均衡を生みます。かつて貿易は、両国が協力から利益を得るため、対立の可能性を下げるように見えました。今日、同じつながりが圧力のために使われえます。アメリカが技術を制限すれば、中国は不可欠な物資を制限できます。しかし、どちらかの政府が貿易を武器化しようとすると、自国の企業、農家、消費者も代償を払うかもしれません。その武器は、それを使う国を傷つけうるのです。

Complete decoupling might remove some of these dependencies, but separating two economies built together over several decades would be enormously expensive. The alternative is de-risking: continuing most trade while reducing dependence in a limited number of sensitive areas. This sounds practical, but it creates another problem. Each government gets to decide what counts as a “risk,” and the list can continue to grow.

完全なデカップリングはこれらの依存の一部を取り除くかもしれませんが、何十年もかけて一緒に築かれた二つの経済を切り離すことは、きわめて高くつくでしょう。代わりの選択肢はデリスキングです。限られた数の敏感な分野で依存を減らしつつ、ほとんどの貿易を続けることです。これは現実的に聞こえますが、別の問題を生みます。何が「リスク」に当たるかはそれぞれの政府が決めることになり、そのリストは増え続けうるのです。

Advanced military chips clearly raise security concerns, while toys probably do not. Between them, however, lie batteries, medical products, cloud services, ports, communication systems, and artificial intelligence. Governments have legitimate reasons to safeguard some technologies. But if every competitive industry is labeled a security issue, economic security becomes ordinary protectionism under a more respectable name.

先端の軍事用チップは明らかに安全保障上の懸念を生みますが、おもちゃはおそらくそうではありません。しかしその間には、電池、医療製品、クラウドサービス、港、通信システム、人工知能があります。政府には一部の技術を守る正当な理由があります。しかし、競争力のあるすべての産業が安全保障の問題とされるなら、経済安全保障は、より立派な名前をつけたただの保護主義になってしまいます。

Japan cannot watch this struggle from a safe distance. The United States is Japan’s central security ally, while China remains its largest trading partner. Japanese companies depend on Chinese factories, materials, and customers, but Japan is also cooperating with the United States on semiconductors and other sensitive technologies. Finding a middle ground does not mean remaining neutral. It means deciding which dependencies are acceptable, which are dangerous, and how much Japan is willing to pay to reduce them.

日本はこの争いを安全な距離から眺めることはできません。アメリカは日本の中心的な安全保障上の同盟国である一方、中国は依然として最大の貿易相手国です。日本企業は中国の工場、物資、顧客に依存していますが、日本は半導体やその他の敏感な技術でアメリカとも協力しています。中間の立場を見つけることは、中立を保つことを意味しません。どの依存が受け入れられ、どれが危険で、それを減らすために日本がどれだけ支払う意思があるかを決めることを意味します。

The United States and China do not have to become friends in order to coexist. They need rules that keep competition from becoming uncontrolled economic warfare. Seen this way, extending a truce for two months may not be an empty result. In a relationship where neither side can attack without hurting itself, buying time may be a form of policy. The real question is whether that time will be used to manage mutual dependence—or simply to prepare the next weapon.

アメリカと中国は、共存するために友人になる必要はありません。必要なのは、競争が制御不能な経済戦争にならないようにするルールです。このように見れば、休戦を2か月延長することは空虚な結果ではないのかもしれません。どちらの側も自らを傷つけずには攻撃できない関係では、時間を稼ぐことは政策の一つの形でありえます。本当の問いは、その時間が相互依存を管理するために使われるのか、それとも単に次の武器を準備するために使われるのか、ということです。

Vocabulary

  1. breakthrough — an important discovery, agreement, or development that helps solve a difficult problem. Example: After months of negotiations, the two sides finally achieved a diplomatic breakthrough.
  2. leverage — power or influence that can be used to obtain a desired result. Example: The workers used the threat of a strike as leverage in the negotiations.
  3. choke point — a place, resource, or part of a system whose control can restrict or stop a larger flow of goods or activity. Example: The narrow shipping route is a major choke point for global energy supplies.
  4. weaponize — to use something as a tool for threatening, pressuring, or harming another party. Example: Critics warned that the government could weaponize access to personal data.
  5. decoupling — the process of separating two economies, industries, or systems that were closely connected. Example: Complete economic decoupling would be costly for companies operating in both countries.
  6. de-risking — the process of reducing dangerous dependence while continuing less sensitive economic relationships. Example: The company pursued de-risking by finding additional suppliers instead of leaving the market completely.
  7. safeguard — to protect something from harm, loss, or misuse. Example: New regulations were introduced to safeguard customers’ financial information.
  8. middle ground — a position between two opposing choices or opinions. Example: The negotiators searched for a middle ground that both sides could accept.
  9. coexist — to exist together peacefully or without destroying or removing each other. Example: Traditional shops and online businesses may be able to coexist by serving different customers.

Comprehension Questions

  1. What was the main result of the September 2026 Trump–Xi summit?
    1. China ended all restrictions on rare-earth exports.
    2. The two countries extended their trade truce for a short period.
    3. The United States removed all semiconductor export controls.
    4. The two governments signed a permanent free-trade agreement.

    2026年9月のトランプ・習首脳会談の主な結果は何でしたか?

  2. How does the article describe the economic power held by the two countries?
    1. Only the United States has resources that the other country needs.
    2. China controls all advanced technology, while the United States controls raw materials.
    3. The United States has strength in advanced technology, while China has influence over rare-earth supplies.
    4. Neither country has meaningful economic leverage over the other.

    記事は、両国が持つ経済的な力をどのように述べていますか?

  3. Why can economic interdependence both reduce and increase tension?
    1. It raises the cost of conflict but also creates dependencies that governments can use as pressure.
    2. It prevents governments from placing any restrictions on trade.
    3. It makes military and commercial technology completely separate.
    4. It allows companies to ignore political decisions.

    経済的な相互依存が緊張を減らすと同時に高めうるのはなぜですか?

  4. What is the main difference between decoupling and de-risking?
    1. Decoupling protects consumers, while de-risking protects only companies.
    2. Decoupling applies to technology, while de-risking applies only to food.
    3. Decoupling increases trade, while de-risking ends all trade.
    4. Decoupling seeks broad separation, while de-risking reduces selected dependencies.

    デカップリングとデリスキングの主な違いは何ですか?

  5. Why does the article discuss Japan?
    1. Japan has already ended most of its economic relationship with China.
    2. Japan illustrates the difficulty of balancing security cooperation with economic ties.
    3. Japan controls the global supply of rare earths.
    4. Japan has remained completely neutral in the U.S.–China rivalry.

    記事はなぜ日本について論じているのですか?

Discussion Questions

  1. Does economic dependence make conflict less likely, or does it give countries more ways to pressure one another?

    経済的依存は対立の可能性を下げますか、それとも国々に互いに圧力をかける手段を増やしますか?

  2. Which products or technologies should be treated as national security issues?

    どの製品や技術を国家安全保障の問題として扱うべきですか?

  3. How can governments prevent economic security policies from becoming ordinary protectionism?

    政府は、経済安全保障政策がただの保護主義になるのをどう防げますか?

  4. How should Japan balance its security alliance with the United States and its economic relationship with China?

    日本はアメリカとの安全保障同盟と中国との経済関係をどうバランスすべきですか?

  5. Is a short trade truce valuable even if it does not solve the main disagreements?

    主要な対立を解決しなくても、短い貿易休戦には価値がありますか?

Speaking Practice

Speak for about one minute about whether countries should pursue decoupling, de-risking, or continued economic integration.

国々がデカップリング、デリスキング、または経済統合の継続のどれを追求すべきかについて、約1分間話してください。

Include:

  • the difference between decoupling and de-risking

    デカップリングとデリスキングの違い

  • one product or industry connected to national security

    国家安全保障に関わる製品または産業一つ

  • one danger of using trade as political pressure

    貿易を政治的圧力として使うことの危険一つ

  • how Japan may be affected

    日本がどのように影響を受けうるか

  • which approach you think is most realistic

    最も現実的だと思う方法