lifts all boats Balassa–Samuelson effect – an international trade model with traded and non-traded economic sectors Beggar thy neighbour Comparative advantage – an international trade model with varying technology between countries Free trade Gravity model of trade International factor movements Intra-industry trade List of international trade topics Linder hypothesis Stolper–Samuelson theorem References Further reading External links A precisely defined, two-goods H–O model The Heckscher–Ohlin Model Between 1400 and 2000 An econometric analysis of factor prices, commodity prices, and endowments in intercontinental trade by NBER in 1999. It finds that 19th century trade patterns and economies can be successfully modeled within an H-O framework. International trade theory International factor movements Economics models 1933 in economics 1933 in Sweden 1930s in Stockholm pl:Teoria obfitości zasobów