1. But this should not limit the researchers' ambition: the present version of TiVA includes already more than 60 economies and its coverage is expected to increase in the future;group of developed and developing countries
2. The gravity model;J Anderson;Annual Review of Economics,2011
3. Productivity Analysis in the Service Sector with Data Envelopment Analysis
4. Growth with Limited Supplies of Foreign Exchange: A Reappraisal of the Two-Gap Model
5. Trade Liberalisation and Revealed Comparative Advantage;B Balassa;The Manchester School,1965