Border Regions and Cross-Border Economies

Why regions along national borders are often poorer or richer than expected, and how open or closed borders shape their economies.

Regions along national borders face special economic circumstances. Borders can cut them off from natural markets, or, when open, turn them into hubs connecting countries.

The border effect

Research has shown that borders reduce trade substantially, even between friendly neighbours. Economist John McCallum found in 1995 that trade between Canadian provinces was far larger than trade between Canadian provinces and U.S. states of similar size and distance, even though the two countries had a free trade agreement. Borders bring different rules, currencies, languages and paperwork.

Closed borders

When borders are closed or restricted, border regions can suffer. They may be cut off from nearby cities and markets on the other side. Border areas in India, such as parts of Punjab near Pakistan, have long been affected by restricted trade and security concerns. Research on Germany found that after the country’s division in 1945, West German cities close to the new East German border grew more slowly, having lost their natural hinterlands.

Open borders

When borders open, border regions can flourish:

Twin cities straddling borders, such as San Diego and Tijuana between the United States and Mexico, develop linked economies.
Cross-border trade and shopping.
Manufacturing hubs near borders, such as Mexico’s maquiladoras near the United States.
Transit and logistics services.

After German reunification in 1990, border cities that had been cut off regained their connections.

India’s border trade

India has developed integrated check posts at land borders with Bangladesh, Nepal and others to speed trade. Border trade with Bangladesh through crossings such as Petrapole-Benapole is among the most important.

A divided market town

A market town serves villages on both sides of a river that later becomes a national border. When the border closes, farmers across the river can no longer bring produce to the market, and the town's traders lose customers. When the border reopens with easier crossings, trade revives. The town's fortunes rise and fall with border policy.

Thinking borders only matter for tariffs

Even without tariffs, borders impose costs through paperwork, regulation, currencies, language and security checks. These reduce trade and shape border regions' economies.

Key takeaways

Borders reduce trade even between friendly countries with free trade.
Closed borders cut regions off from natural markets and slow their growth.
Open borders can create twin cities, cross-border trade and manufacturing hubs.
India's integrated check posts aim to ease trade at land borders.