Concentration of exports on a narrow range of categories of goods and services, or a narrow range of countries. The higher its degree of export concentration, the more liable are a country's balance of trade and national income to disruption by fluctuations in the sectors of the world economy in which it is concentrated. More widely dispersed markets give a lower degree of risk. Export concentration is generally highest in some of the oil-exporting countries, and some of the world's smaller primary commodity exporters. It is generally low in industrial counties.

• borrowing
• borrowing, consumer
• Borrowing Requirement, Public Sector
• bottleneck
• bottom line
• bound
• boundary, production possibility
• bounded rationality
• Bowley box
• box diagram
• boycott
• BP curve
• Brady Plan
• brain drain
• branch banking
• brand
• brand loyalty
• Brandt Report
• break-even
• break-up value
• Bretton Woods
• broad money
• broker
• brokerage
• bubble