1. A theory of demand for products distinguished by place of production;Armington;International Monetary Fund Staff Papers,1969
2. Bajo-Rubio, O., & Gómez-Plana, A. G. (2000). The role of country size and returns to scale in empirical assessments of economic integration: The case of Spain. Working Paper 2000/05. Departamento de Economía, Universidad Pública de Navarra.
3. Reducing social contributions for unskilled labor as a way of fighting unemployment: An empirical evaluation for the case of Spain;Bajo-Rubio;FinanzArchiv,2004
4. Indices de concentración para la economía española: Análisis a partir de las fuentes tributarias;Bajo-Rubio;Economía Industrial,1998
5. Operationalizing equilibrium unemployment: A general equilibrium external economies approach;Balistreri;Journal of Economic Dynamics & Control,2002