The existing theoretical and empirical literature focusing on interconnections between international trade, trade liberalisation, and economic development provides ample evidence pertaining to nations and industries. However, another dimension of trade liberalisation - the assessment of the level of national or regional development — needs further research. This article sets out to analyse theoretical and empirical research works focusing on a varied spatial effect of expanding international trade on national economies and identifies factors affecting regional development. Firstly, it is established that expanding international trade is a more important source of growth for the regions of developing countries than for those of developed one...