28 Solnik/McLeavey • Global Investments, Sixth Edition
6. You are a U.S. pension fund that cares about dollar return. You believe in the “multicountry approach”
to asset pricing but feel that currency premiums are equal to zero (so you do not care about currency
exposures). The multicountry approach assumes that national equity markets are priced globally and
that securities of each country are priced relative to their national market. In other words, each security
is influenced by its national market factor, which in turn is influenced by the world market factor,
and, possibly, by currency factors. This implies that the world beta of security i (
iw, or sensitivity to
the world market), is equal to the product of the local beta of security i (
i, or sensitivity to the local
market) times the world beta of its local market (
l w).
In your portfolio construction, you apply a traditional two-step procedure where, you first decide on
country allocation and then on security selection within each country.
The following are your forecasts for the coming year, the betas of stocks calculated relative to their
domestic index, as well as the betas of the national stock markets relative to the world index. All
forecasts are measured in their local currency.
Assume that you do not hedge currency risks.
a. Write the international CAPM equations that would hold for each national market and security.
Express it in dollars and in the security’s local currency.
b. Which national market should you under/overweight in your global portfolio? [To answer this
question, you will first calculate the expected return of all three markets in dollars. You will then
compare those to the theoretical expected return suggested by the international CAPM.]