International Business: Currency, Purchasing Power Parity, and Exchange Rates

Purchasing Power Parity (PPP)

• Definition: PPP refers to the amount of adjustment that must be made in exchange rates for two currencies to have equivalent purchasing power.
• Purpose: It helps to standardize economic comparisons across countries, as raw exchange rates do not adequately reflect the actual cost of living or the value of a currency within its own economy.
  • Example: Knowing the GDP per capita in Mexican pesos doesn't tell a non-local much about the actual living standards unless they understand the purchasing power of the peso.
  • PPP adjusts these figures to a common currency (e.g., US dollars) to provide a more meaningful comparison of wealth and well-being.
• Data Source: Economic data, including GDP with PPP adjustments, can often be found in resources like the CIA World Factbook, which is a common source for country-specific economic information.

The Big Mac Index

• Origin: Developed by The Economist magazine as an informal and insightful economic tool to illustrate purchasing power parity.
• Methodology: Compares the price of a Big Mac across different countries.
• Why Big Macs?
  • Ubiquity: McDonald's restaurants are found globally, making the Big Mac a widely available product.
  • Standardization: Generally, Big Macs are perceived to be relatively consistent in ingredients and production methods across countries, making them a comparable basket of goods and services.
    • Note: While minor regional differences might occur (e.g., bun type in Montreal), the core product is largely uniform.
  • Local Sourcing: McDonald's attempts to source ingredients (buns, cheese, meat) locally where prices are favorable. This means the price of a Big Mac reflects local input costs.
  • Local Conditions: The price also incorporates local wages, rent, and other operational costs, thereby reflecting the economic conditions of the specific country.
• Application: By comparing Big Mac prices adjusted for exchange rates, the index suggests whether a currency is overvalued or undervalued relative to the US dollar.

Implications of Currency Valuation (Overvalued / Undervalued)

• For Importers: If you are an international business leader looking to import goods, you would generally prefer to purchase from a country whose currency is undervalued.
  • An undervalued currency means that your foreign currency (e.g., USD) can buy more of the local currency, making local goods and services comparatively cheaper.
  • Conversely, buying from a country with an overvalued currency would mean higher costs for your imported goods, making them less price-competitive.
• General Rule of Thumb: Countries with overvalued currencies may be less price-competitive in international markets for their exports.

Currency Forecasting and Market Approaches

• Purpose: Businesses like Indium (which buys raw materials globally and sells to international customers) must forecast currency movements to manage costs and maximize profits, similar to stock market investing.
• Market Approaches:
  • Efficient Market Approach:
    • Core Idea: Argues that current exchange rates (or stock prices) fully reflect all available public information. Therefore, it's difficult to consistently outperform the market using this information.
    • Analogy to Stock Market: Similar to how the price of a stock (e.g., Pepsi) reflects all known information about the company and market conditions.
    • Random Walk Hypothesis: A concept often associated with the efficient market hypothesis, suggesting that future movements of financial prices (including exchange rates) are random and cannot be predicted based on past movements or public information. This implies that 'luck' plays a significant role, which is sometimes illustrated by studies where random methods (like animals picking stocks) occasionally outperform professional analysts.
  • Fundamental Approach: Focuses on analyzing a wide range of underlying economic variables (e.g., interest rates, inflation, balance of payments, political stability, economic growth) to predict future exchange rate movements.
  • Technical Analysis: Involves examining historical price and volume data to identify patterns and predict future market trends. This is often used within or alongside the fundamental approach to gain insight.
• Goal: To “buy low and sell high” with currencies, similar to stock trading.

Governmental Influence on Currency

• Methods of Manipulation: Governments can intervene in currency markets to influence their currency's value, particularly in managed float or pegged exchange rate systems.
  • Increasing Value: A government might buy back its own currency on the international market, reducing its supply and thus increasing its value.
  • Decreasing Value (Devaluation): A government might flood the market by selling its own currency, increasing its supply and decreasing its value.
• Reasons for Manipulation:
  • To Decrease Value: Makes a country's exports cheaper for foreign buyers, potentially boosting export industries and improving trade balance (e.g., “everything in your country just went on sale”).
  • To Increase Value: Can make imports cheaper, help pay off foreign debts more easily (since the currency is worth more), or combat inflation.

Convertible vs. Non-Convertible Currencies

• Convertible Currency: Can be freely exchanged for other currencies without significant governmental restrictions.
  • Example: The United States dollar (USD) is highly convertible globally.
• Non-Convertible Currency: Its exchange for other currencies is restricted by government controls.
  • Characteristics: Often arbitrarily pegged at a rate higher than its free-market value; characterized by strict exchange controls.
  • Historical Example: The Soviet ruble was a non-convertible currency, leading to a significant black market where its value against the dollar was much lower than the official rate (e.g., official rate 2 rubles per dollar vs. black market 25-50 rubles per dollar).

Factors Affecting Currency Valuations

• Taxation: Various forms of taxation (income tax, VAT/value-added tax, withholding tax) can significantly impact a country's economic attractiveness and thus its currency value.
• Interest Rates: Higher interest rates can attract foreign investment, increasing demand for the local currency and potentially boosting its value.
• Inflation Rates:
  • Impact: High inflation erodes the purchasing power of a currency domestically and internationally.
  • Historical Example: Germany's hyperinflation after World War I, driven by excessive money printing to pay reparations. The inflation rate was astronomically high ("a shitload of inflation"). Money became so worthless that it was cheaper to burn currency for heat than to buy wood. This domestic worthlessness was mirrored by a drastic fall in its exchange rate abroad.
• Balance of Payments:
  • Definition: A record of all economic transactions between a country and the rest of the world, reflecting the flow of money into and out of the country.
  • Impact: A negative balance (more money flowing out due to imports than coming in from exports, as America often experiences) indicates a higher demand for foreign currency and a lower demand for the domestic currency, which can put downward pressure on its value. (Though not always a bad thing, as noted).

Creative Currency Approaches (During Instability)

• Context: In times of extreme economic instability or hyperinflation, traditional money can lose its value rapidly, prompting people to seek alternative stores of value or mediums of exchange.
• Examples:
  • Bartering for Goods: After the collapse of the Soviet Union, people often resorted to bartering (e.g., exchanging a ton of scrap metal for a bulldozer) instead of using the devalued ruble.
  • Commodities as Money: During periods when the ruble was losing value daily, a family might buy large quantities of a stable commodity like toilet paper (which holds its value and is a needed good) and then sell it gradually, effectively using it as a form of savings or a medium of exchange.
  • This demonstrates the ingenuity people employ to cope with currency instability when governments fail to maintain a stable monetary system.