Use the information from Question 4 to answer the following questions.

a. Calculate Rijkdom’s GDP, GNI, and GNDI.

b. Calculate investment for Rijkdom

c. Calculate Rijkdom’s national savings and private savings.

d. Suppose that valuation effects imply a capital gain of $220 million on external wealth. Calculate the change in Rijkdom’s external wealth. Based on these data, discuss the three sources of the change in external wealth. Which one appears to be most important for Rijkdom? Explain.