Search Results       Your search for [subject]Interstate commerce -- United States returned 1 record.           How much do national borders matter n. by Helliwell, John F.; Washington, D. C.: Brookings Institution Press, 1998. Subject: Boundaries; International trade; Interstate commerce -- Canada; Interstate commerce -- United States; Canada -- Commerce; Canada -- Commerce -- United States; United States -- Commerce -- Canada; United States -- Commerce.          Add to Book Cart Relevance: 25.56%