Answer the following questions:

a- Briefly discuss the approaches of forecasting exchange rates and compare with each other for their performance

b-Briefly discuss the factors that are responsible for the recent surge in international portfolio investment?

c-Briefly discuss why security returns are found to be less correlated across countries than within a country.

d-briefly explain the concept of the world beta of a security.

e-Explain how exchange rate fluctuations affect the return from a foreign market, measured in dollar terms