What name is given to the index based on the prices of exported or imported merchandise?

Answer: Option C - International Price Index

Explanation:

International price index, is the index based for both imported and exported marchandise. IPI would effectively endorse the use in the U. S. of discriminatory cost-effectiveness standards used by foreign governments. Many countries, like U. K., Canada, and Greece, make drug reimbursement and coverage decisions based on cost-effectiveness assessments tied to the quality-adjusted life year (QALY).