Economics 13. What determines the size of a country's trade deficit? 31. What is the difference between trade deficits and balance of trade? 36. Is it better for your country to be an international lender or borrower? 5. How does international trade affect working conditions of low-income countries? 21. Name and define three policy tools for enacting protectionism. 42. How would direct subsidies to key industries be preferable to tariffs or quotas