Currency War: Causes, Impacts, and Survival Strategies

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Currency War

Currency war, a form of economic warfare in the global financial landscape, holds significant implications for investors, governments, and the global economy. Although this phenomenon is not new, it has gained renewed interest in recent times due to shifting economic dynamics. 

This article will explain the concept of a currency war, including their causes, effects on investors, notable examples, and survival strategies for investors.

What Is a Currency War?

A currency war is a financial conflict in which countries engage in competitive devaluations of their currencies to gain an advantage in international trade. These devaluations are typically achieved by central banks through monetary policies, such as lowering interest rates or quantitative easing, with the aim of making their exports more competitive. A currency war can be triggered by various factors, as we will explain in the next sections.

Key Takeaways

  • A currency war is a financial conflict where countries competitively devalue their currencies to boost trade.
  • Economic slowdowns and trade imbalances often trigger a currency war to stimulate growth.
  • Currency wars create market volatility, affecting investors through rapid value shifts in investments.
  • Diversifying portfolios and investing in safe-haven assets are key strategies for surviving currency wars.

Causes of Currency War

A currency war often occurs from a variety of interconnected factors. Here’s a more detailed look into the causes:

  • Economic Slowdowns: Countries often devalue their currency during economic downturns to boost exports and stimulate growth.
  • Trade Imbalances: Nations with a deficit in trade (importing more than exporting) may lower their currency value to make their exports cheaper and more competitive.
  • Political Strategies: Governments might engage in currency devaluation as a tactic in broader geopolitical or trade strategies.
  • Response to Other Countries’ Policies: If one country devalues its currency, others might follow suit to maintain their competitive edge, leading to a chain reaction.
  • Global Economic Pressures: Large-scale economic events, like global recessions or shifts in commodity prices, can push countries towards competitive devaluation.

Impacts of Currency War on Investors

A currency war can significantly impact investors in various ways, as listed below:

  • Market Volatility: Investors face increased unpredictability in currency and stock markets, leading to rapid value changes in investments.
  • Interest Rate Changes: Fluctuations in interest rates, as a response to currency wars, can significantly affect bond yields and stock prices.
  • Exchange Rate Risk: Holding foreign assets becomes riskier due to potential devaluation in foreign currencies, affecting investment returns.
  • Trade Dynamics Shift: Changes in global trade can benefit or harm different sectors, requiring investors to adjust their strategies accordingly.
  • Portfolio Reallocation: Investors may need to shift towards safer assets or diversify more to mitigate risks from currency instability.

5 Examples of Currency War

Many influential events in global economics have shaped international trade and finance throughout history. This section will explore five notable examples of currency wars, each highlighting a distinct period of economic turmoil and strategic financial planning.

1. Great Depression (1930s)

During the Great Depression, many countries, starting with the United Kingdom and followed by others including the United States, devalued their currencies to boost exports and combat severe economic downturns. This series of competitive devaluations contributed to international economic turmoil and trade tensions during this period.

2. Plaza Accord (1985)

The Plaza Accord was an agreement among the G5 nations (France, Germany, Japan, the United Kingdom, and the United States) to intervene in currency markets and depreciate the US dollar relative to the Japanese Yen and German Deutsche Mark. This was aimed at reducing the US trade deficit, but it led to significant economic disruptions, particularly in Japan, contributing to the asset price bubble of the late 1980s.

3. Chinese Yuan Devaluation (2015)

In August 2015, China devalued its currency, the yuan, by nearly 2%, surprising global markets. This move was aimed at boosting exports in the face of a slowing Chinese economy and declining stock market. The devaluation enhanced concerns about a potential currency war in Asia, as other countries might devalue their currencies in response.

4. US-China Trade War (2018)

During this period, particularly under the Trump administration, the US accused China of artificially devaluing its currency to gain an unfair trade advantage. This accusation was a key factor in the escalating trade tensions between the two countries, leading to the imposition of tariffs and counter-tariffs that impacted global trade.

5. Turkish Lira Crisis (2018)

The 2018 Turkish currency crisis involved a steep decline in the value of the Lira. Triggered by concerns over high foreign debt, diminishing central bank independence, and political tensions with the U.S., the crisis eroded investor confidence. Turkey’s efforts to stabilize the Lira had limited success. This incident underscored the risks of political influence on economic stability and its potential to spark broader concerns in emerging markets.

How to Survive a Currency War as an Investor

Surviving a currency war as an investor requires a blend of vigilance, adaptability, and strategic planning. Here’s a straightforward approach:

1. Diversify Your Portfolio

Spread your investments across various asset classes and currencies to reduce risk. This might include a mix of stocks, bonds, and real estate in different markets.

2. Invest in Safe-Haven Assets

Consider safe-haven assets like gold, government bonds, or stable currencies for protection during volatile times. These assets typically hold or increase their value in periods of economic uncertainty.

3. Stay Informed

Keep up with global economic news and trends. Understanding what is happening in the world economy can help you make more informed investment decisions and react swiftly to changes.

4. Consider Hedging Strategies

Use financial instruments like options, futures, or currency swaps to hedge against currency risks. These can help protect your investments from unfavorable currency movements.

5. Be Flexible and Patient

Adapt to currency wars’ unpredictability by staying flexible in your investment strategy and exercising patience with your investments. Be prepared to adjust your approach as market conditions change.


Currency wars are a significant and complex phenomenon in global finance, impacting investors, governments, and the global economy. These conflicts arise from various causes like economic slowdowns, trade imbalances, and political maneuvers, leading to widespread effects like market volatility and exchange rate risks. 

For investors, the key to navigating these turbulent times lies in diversification, staying informed, and adapting strategies to changing market conditions. Understanding currency wars is essential in today’s interconnected financial world, enabling better decision-making and investment protection.


1. What is a currency war?

A currency war occurs when countries competitively devalue their currencies to gain a trade advantage.

2. How do currency wars affect the global economy?

They can lead to increased financial market volatility, disrupted trade flows, and tensions between nations.

3. How can investors protect themselves during a currency war?

Investors can protect themselves by diversifying their portfolios, investing in safe-haven assets, and staying informed about global economic trends.

4. How long do currency wars typically last?

The duration varies, depending on the underlying economic conditions and the responses of involved countries.

5. Can a currency war affect currency exchange rates?

Yes, currency wars directly target exchange rates, aiming to make a nation’s currency cheaper relative to others.

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