The Impact of Monetary Policy on Financial Markets

When monetary policy makes stock markets, bonds, and even currencies tremble, it’s never a coincidence. The decisions of major central banks, like the European Central Bank (ECB) or the US Federal Reserve (Fed), are one of the main drivers of financial markets. By changing the cost of money through their key interest rates, they influence expected returns, risk perception, and investor trade-offs. Let’s analyze this impact market by market.

1. The Bond Market: The Most Sensitive

The bond market is the first to react because its value is mathematically linked to interest rates.

• The Basic Mechanism: When a central bank raises its key rates, new bonds issued on the primary market offer higher yields. Consequently, older bonds with lower coupons become less attractive. To be sold on the secondary market, their price must fall for their yield to align with the new rates. It’s an immutable mechanism: the value of a bond moves in the opposite direction of interest rates.
  • Example: A government bond issued at €100 with an annual coupon of 2% becomes less interesting if the new key rates rise to 4%. Investors will then demand a discount to buy it (for example, at €95), thus increasing its effective yield.
• Impact on Governments and Companies: A rise in key rates increases the cost of financing for governments and companies wishing to raise debt. This can weigh on public finances and reduce corporate investment capacity.
• The Yield Curve: ECB decisions affect not only short-term rates but also long-term rates (10 years, 30 years), which incorporate expectations of future inflation and growth. A restrictive monetary policy tends to “flatten” the yield curve (the spread between short and long rates narrows), or even invert it, which is often seen as a warning sign of a recession.

2. The Stock Market: A Complex Relationship

The link between interest rates and stocks is less direct but just as powerful. It mainly involves the cost of capital and the discounting of future earnings.

• The Valuation Effect: The theoretical value of a stock corresponds to the sum of its future cash flows (dividends, profits) discounted to today. The discount rate used includes the “risk-free rate” (linked to key rates). Thus, when rates rise, the discount rate increases, which mathematically reduces the present value of future earnings.
  • Growth stocks (technology, luxury, biotech), whose valuation is based on profits expected in the distant future, are the most penalized by this phenomenon.
  • Cyclical stocks (banks, industry, retail) can be more resilient. Banks, for example, see their interest margins increase when rates rise. More “defensive” stocks (healthcare, utilities) are often less affected.
• The Effect on the Economy: A restrictive monetary policy aims to slow down the economy to control inflation. This can lead to a drop in corporate profits, weighing on stock prices. Conversely, a drop in rates stimulates activity and can support stock markets, as financing becomes cheaper and investors, in search of returns, turn away from bonds in favor of stocks (the TINA phenomenon: “There Is No Alternative”).

3. The Currency Market: The Game of Differentials

Key interest rates are a key factor in the foreign exchange (Forex) market.

• Currency Attractiveness: A high interest rate differential makes a currency more attractive. If the ECB raises its rates more aggressively than the Fed, investors will be encouraged to sell dollars to buy euros to benefit from a better return. This increased demand drives up the price of the euro against the dollar.
• Impact on Foreign Trade: A strong euro penalizes European exporting companies (their products become more expensive internationally) but benefits importers (the cost of raw materials or products imported in dollars decreases).

4. Investment Flows and Other Assets

ECB decisions modify capital flows on a global scale.

• Geographic Arbitrage: If expected returns in the eurozone become more attractive than those in emerging countries (India, Brazil…) or other developed areas, investors reallocate their capital to Europe. This phenomenon affects all markets: more liquidity for stocks, variations in bond spreads, etc.
• Real Estate: This sector is very sensitive to interest rates. Low rates facilitate access to mortgage credit, stimulating demand and driving up prices. A rapid rise in rates, conversely, can cause a sharp slowdown or even a market correction.
• Commodities: Priced in dollars, commodities like oil or gold have an inverse relationship with the greenback. A restrictive US monetary policy (rate hike) strengthens the dollar and tends to lower commodity prices.

In conclusion, monetary policy acts as an orchestra conductor for the financial markets. Every decision, and even every speech, is scrutinized to anticipate future movements. Understanding these mechanisms is essential for any investor wishing to navigate an ever-changing economic environment.

Understanding these mechanisms is crucial, but the most important thing is knowing how they apply to your personal financial situation. How do these global central bank decisions impact your portfolio, your mortgage, or your savings goals?

If you want to understand how to adapt your finances to these constantly changing conditions, book a free and non-binding initial consultation now. We’ll help you gain clarity and optimize your strategy.

Exchange rates: the second pillar of the ECB’s monetary policy

The European Central Bank (ECB) is not limited to managing interest rates. Another fundamental aspect of its mission is to ensure the stability of the euro on the foreign exchange market, i.e., in relation to other currencies. This action aims to preserve the credibility and competitiveness of the euro in international trade.

I. The Exchange Rate: Definition and Role

The exchange rate represents the value of the euro relative to other currencies. The ECB closely monitors these rates and can intervene in the foreign exchange markets by using its foreign currency reserves. Its goal is to ensure that the euro remains a stable currency suited to global economic realities.

1. Fixed vs. Floating Exchange Rates: Two Monetary Regimes

There are two main systems for determining the value of a currency: floating and fixed exchange rates.

In a floating exchange rate system, the currency’s value is determined freely by the market, based on supply and demand on the foreign exchange market. This value can appreciate or depreciate depending on trade flows, investments, interest rates, and the confidence of economic actors. This system is the most widespread today. The euro, the dollar, the yen, and most major currencies operate this way.

In a fixed exchange rate system, the central bank sets a parity between its currency and another currency, for example, a specific exchange rate between the Danish krone and the euro. It commits to maintaining this parity by regularly intervening in the foreign exchange market to buy or sell its own currency. This system offers some stability, but it is costly and difficult to maintain, especially during economic crises or massive capital movements.

2. Useful Vocabulary for Understanding Currency Variations

It is important to distinguish the terms used depending on the exchange rate regime. In a floating regime, the market determines the currency’s value. We speak of appreciation when the currency gains value and depreciation when it loses value. In contrast, in a fixed regime, the central bank voluntarily adjusts the parity. We speak of revaluation when the currency is given a higher value and devaluation when its value is lowered.

3. Why is a Fixed Exchange Rate System Hard to Maintain?

Imagine a country like Mexico decides to peg its currency to the euro’s exchange rate. To maintain this parity, the central bank must be ready to intervene on the foreign exchange market at any time. If investors lose confidence and sell the national currency en masse, its value drops. To prevent this rate from falling, the central bank must buy its own currency using its foreign currency reserves. These reserves are limited. Once exhausted, the central bank can no longer defend the exchange rate, and the currency is devalued. Several Latin American countries experienced this type of crisis in the 1980s. This is why most countries have adopted a floating exchange rate regime.

4. The Advantages and Disadvantages of a Strong Currency

A strong currency has several advantages. It reduces the cost of imports, which limits price increases for consumers and helps contain inflation. It also strengthens purchasing power abroad, facilitating international travel and investments for individuals and businesses.

Example 1: A European company imports smartphones made in the United States. If 1 euro is worth 1.20 dollars, a smartphone costing 1000 dollars in the United States will cost the European company 833.33 euros (1000 / 1.20). If the euro weakens and 1 euro is now worth 1.10 dollars, the same smartphone will cost 909.09 euros (1000 / 1.10).

The strong currency allowed the company to buy the product cheaper. This lower import cost can be passed on to the final selling price of the smartphone in Europe, which limits price increases for consumers and helps maintain low inflation.

Example 2: Assuming an exchange rate of 1 CHF = 1.06 EUR, a tourist exchanges 1,000 CHF and receives 1,060 EUR. If the Swiss franc weakens and 1 CHF is worth only 1.02 EUR, the same 1,000 CHF will only give him 1,020 EUR.

Thanks to his strong currency, the Swiss tourist has greater purchasing power in Europe. His initial 1,000 CHF allow him to spend more on accommodation, food, or activities because each franc exchanged brings him more euros.

However, a strong currency can also penalize exports by making products more expensive on foreign markets, which can weigh on the competitiveness of companies and slow economic growth.

Example: A German company manufactures cars and sells them on the American market. The selling price of one model in Europe is 40,000 euros.

• With a weak euro (1 € = 1.10 $), the price of the car for an American buyer is 44,000 $ (40,000 € x 1.10).
• With a strong euro (1 € = 1.30 $), the price of the same car for the American buyer climbs to 52,000 $ (40,000 € x 1.30).

Impact: The strong currency made the German car 8,000 $ more expensive for Americans. Compared to Japanese or Korean competitors whose currencies are weaker, the German manufacturer loses competitiveness, sales can fall, and it is forced to either lower its prices (which reduces its margin) or lose market share.

II. The Special Case of Switzerland: When Money Costs Almost Nothing

Switzerland is a perfect example of a very accommodative monetary policy with interest rates close to zero, or even negative, for several years. This situation means that the Swiss National Bank (SNB) lends money to commercial banks at an extremely low cost, which translates into inexpensive loans for households and businesses. Specifically, borrowing money to buy real estate or finance a project is made very accessible, thereby encouraging consumption and investment.

However, this policy also has consequences for savers: saving money earns little, which encourages them to seek riskier investment alternatives or to prioritize spending. Furthermore, the strength of the Swiss franc, considered a safe-haven currency in times of global economic uncertainty, puts pressure on Swiss exports, making their products more expensive abroad. To limit this appreciation of the franc, the SNB maintains low rates to discourage speculative flows and support the national economy.

Thus, saying that “money costs nothing” in Switzerland reflects a monetary strategy aimed at balancing the effects of a strong currency by facilitating low-cost credit to preserve economic growth while facing the specific challenges of this particular context..

From the Central Bank to your wallet: understanding the impact of monetary policy on your finances.

Monetary policy is sometimes perceived as a technical matter, reserved for central banks and financial markets. Yet, its effects reverberate through all aspects of economic life. Decisions made by the European Central Bank (ECB) influence the level of interest rates, the cost of credit, the remuneration of savings, as well as the evolution of consumer prices. Understanding the mechanisms of monetary policy therefore helps to shed light on the economic, financial, and patrimonial choices faced by households and businesses alike.

I. A European Monetary Policy Serving Price Stability

1. The Mission of the European Central Bank

Since the creation of the euro, the European Central Bank has been responsible for defining and conducting monetary policy for the member countries of the euro area. Its main objective is price stability. This means it must maintain inflation at a level close to, but below, 2% over the medium term. This target was chosen to preserve purchasing power, guarantee economic predictability, and ensure confidence in the currency.

2. Coordination with National Central Banks

The ECB works in close collaboration with the national central banks of the member states that have adopted the euro. This organization, called the Eurosystem, allows monetary decisions to be implemented in a harmonized manner throughout the euro area, while taking into account the economic specificities of each country. Decisions are made by the Governing Council, composed of the six members of the ECB’s Executive Board and the governors of the national central banks.

3. Three Notions to Distinguish: Inflation, Deflation, and Disinflation

Inflation refers to a sustained increase in the general price level, measured in the euro area by the harmonized index of consumer prices. Deflation corresponds to a prolonged decrease in this same price level, which can encourage economic agents to defer their purchases and hinder growth. Finally, disinflation is a slowdown in inflation, in other words, a decrease in the rate of price increase, without entering negative territory.

II. The ECB’s Instruments for Controlling Inflation

1. The Central Role of Key Interest Rates

The ECB’s main lever of action is the adjustment of its key interest rates. Three main rates are distinguished:

source: afinancepourtous.com d’après BCE

• The refinancing rate is the rate at which commercial banks can borrow short-term from the ECB.
• The deposit rate corresponds to the remuneration banks receive when they place liquidity with the ECB for a very short period.
• The marginal lending rate applies to emergency borrowings by banks over a 24-hour period.

2. A Transmission Mechanism to the Real Economy

By adjusting its key interest rates, the ECB influences the cost at which commercial banks can refinance themselves. This cost directly impacts the credit conditions offered to households and businesses. A rise in key interest rates makes bank financing more expensive, which encourages credit institutions to increase the rates applied to borrowers. Consequently, loans, particularly mortgage loans, become more costly, which can discourage demand, slow down consumption, and defer certain investments.

Conversely, when the ECB lowers its rates, the refinancing cost decreases. Banks are then able to offer loans under more attractive conditions, which stimulates credit demand, favors economic activity, and supports inflation when it is deemed too low.

Mortgage credit perfectly illustrates this mechanism. When a household wishes to acquire a property, it must finance part of it through a loan. However, banks do not constantly have funds available to lend to all their clients. They refinance themselves, either with the ECB or on the interbank market. If key interest rates are high, their cost of accessing liquidity increases. They then pass this additional cost on to the interest rates offered to borrowers. Thus, a rise in key interest rates mechanically slows down the dynamics of the real estate market.

This mechanism is at the heart of the ECB’s strategy: by making credit more or less accessible, it modulates the level of aggregate demand and influences the trajectory of prices. It is a powerful regulatory tool, particularly in periods of high inflation or, conversely, insufficient economic growth.

3. Indirect Effects on All Economic Decisions

Monetary policy also acts through the expectations of economic agents. When the ECB announces a future orientation of its rates, financial markets, businesses, and individuals adapt their behaviors. This is called expectation management, which constitutes an essential channel for transmitting monetary decisions. Furthermore, the stability of the financial environment, fostered by a coherent monetary policy, reinforces confidence and the fluidity of economic exchanges.

III. Unconventional Measures in Exceptional Periods

1. A Policy Adapted to Economic Crises

When key interest rates reach very low levels and growth remains insufficient, traditional instruments may lose effectiveness. In this context, the ECB may resort to so-called unconventional measures, designed to revive the economy by means other than rates.

2. The Example of Quantitative Easing

Quantitative easing is one such instrument. It involves massively purchasing financial assets, particularly government bonds, on secondary markets. This program aims to inject liquidity into the economy, lower long-term interest rates, and encourage the financing of private activity. It is a tool used in exceptional periods, notably after the 2008 financial crisis and during the Covid-19 pandemic.

3. Controlled and Temporary Use

These unconventional measures are designed to be temporary and targeted. Their implementation is based on a precise diagnosis of the macroeconomic situation. They are subject to rigorous monitoring, and their gradual withdrawal is envisioned as soon as economic conditions allow for a return to a more classic monetary policy.

Conclusion

Monetary policy plays a decisive role in the balance of the European economy. It influences financing conditions, the behavior of economic agents, price developments, and, more broadly, the dynamics of growth. By maintaining controlled inflation, the European Central Bank helps to create a stable economic environment, favorable to investment and consumption.

Last June, the ECB decided to temporarily suspend its rate-cutting cycle, after eight successive adjustments. This decision reflects progressively contained inflation, but also an uncertain economic context, in which prudence remains essential.

Following developments in monetary policy allows for better anticipation of its effects on financial markets, savings choices, financing strategies, and long-term economic trade-offs.

We follow these developments for you through our support, to help you make good use of them in your financial strategy. Would you like more information on this subject? Do not hesitate to contact us!