Investor Motivation Beyond Expected Returns

Suppose the annual interest rate on a U.S. dollar deposit is 5% and the interest rate on a British pound deposit is 3%. According to the economic principle that assumes investors are solely motivated by maximizing expected returns, what must be the market's collective expectation regarding the U.S. dollar/British pound exchange rate over the next year for both investments to be equally attractive?

Critique of the Core Investor Motivation Assumption

The Role of Investor Motivation in Financial Equilibrium

An economic principle posits that international investors are solely motivated by maximizing expected returns, which implies that any interest rate differential between two countries should be perfectly offset by an expected change in the exchange rate. Suppose the annual interest rate on a deposit in Country A is 6%, and in Country B it is 3%. However, market data indicates that investors are indifferent between the two deposits only when the currency of Country A is expected to depreciate by 1% against the currency of Country B. What does this situation suggest about the underlying assumption of investor motivation?

In a financial market that perfectly adheres to the principle where investors are motivated solely by maximizing expected returns, it is possible for a stable equilibrium to exist where the interest rate on a domestic asset is 5%, the interest rate on a foreign asset is 3%, and the domestic currency is expected to depreciate by 1% against the foreign currency.

The annual interest rate on government bonds in Country X is 8%, while in Country Y it is 2%. A foundational economic principle assumes that international investors are solely motivated by maximizing expected returns. Based on this assumption alone, the currency of Country X would need to be expected to depreciate by 6% against the currency of Country Y for the returns on both bonds to be equal. However, market data reveals that investors actually require an expected depreciation of 9% for Country X's currency to consider the two investments equally attractive. What is the most plausible explanation for this 3% difference?

Predicting Market Adjustments to Disequilibrium

An economic model is built on the fundamental assumption that international investors are solely motivated by maximizing the expected rate of return on their assets, measured in their home currency. In the context of this model, which of the following investor statements would represent a behavior that is inconsistent with this core assumption?

In a world where international investors are solely motivated by maximizing expected returns, a country that consistently maintains a higher interest rate than its major trading partners would, all else being equal, have a currency that is consistently expected to appreciate over time.