References: BOADWAY, R. F. & NIEL, B., 1984. Welfare economics. Oxford: Wiley-Blackwell Publishing. ISBN 978-0-631-13327-8. BOARDMAN, A. E., GREENBERG, D. H., VINING, A. R. & WEIMER, D. L., 2002. Cost-benefi t analysis: concepts and practice (2nd Edition). Prentice Hall. ISBN 978-0-13-087178-7. EUROPEAN COMMISSION (EC), 2014a. Common tariff of the EU [Commission Implementing Regulation (EU) No. 1101/2014, online]. [accessed May 6, 2015]. Offi cial Journal of the EU L 312, Vol. 57. ISSN 1977-0677. Available at: http://eur-lex.europa.eu/legal-content/EN/ TXT/?uri=OJ%3AL%3A2014%3A312%3ATOC EC, 2014b. Guide to cost-benefi t analysis of investment projects. Economic appraisal tool for cohesion policy 2014–2020. Brussels. DOI: http://dx.doi.org/10.2776/97516. EC, 2008. Guide to cost-benefi t analysis of investment projects. Structural funds, cohesion fund and instrument for pre-accession [online]. [accessed May 6, 2016]. Available at: http://ec.europa. eu/regional_policy/sources/docgener/guides/cost/guide2008_en.pdf JOHANSSON, P. O., 1991. An introduction to modern welfare economics. Cambridge University Press. ISBN 9780521356954, LITTLE, I. M. D. & MIRRLEES, J. A., 1974. Project appraisal and planning for developing countries. London: Heinemann Educational Books. ISBN 978-0465064120. MISHAN, E. J. & QUAH, E., 2007. Cost-benefi t analysis (5th Edition). Routledge. ISBN 978-0415349918. POWERS, T. A. (ed.), 1990. Estimating accounting prices for project appraisal: case studies in the little-mirlees/squire-van der tak method. Washington, D. C.: Inter-American Development Bank. ISBN 978-0940602007. SQUIRE, L. & VAN DER TAK, H. G., 1975. Economic analysis of projects. Baltimore: Johns Hopkins University Press. ISBN 0-8018-1817-6. TSAKOK, I., 1990. Agricultural price policy. A practitioner’s guide to partial-equilibrium analysis. London: Cornell University Press. ISBN 978-0801423635. UNIDO (United Nations Industrial Development Organization), 1972. Guidelines for project evaluation. Stationery Offi ce Books. ISBN 978-0119021875.