1.OECD (2008) International Migration Outlook: SOPEMI – 2008 (Paris: Organisation for Economic Co-operation and Development).Google Scholar

2.Docquier, F. and Marfouk, A. (2004) Measuring the international mobility of skilled workers (1990–2000). Policy Research Working Paper Series 3381, The World Bank.CrossRefGoogle Scholar

3.Avato, J. (2009) Dynamics in highly skilled migration: a European perspective. PhD thesis. Eberhard-Karls-Universität Tübingen.Google Scholar

4.Furman, J. L., Porter, M. E. and Stern, S. (2002) The determinants of national innovative capacity. Research Policy, 31(6), 899–933(35).CrossRefGoogle Scholar

5.Kancs, D. and Ciaian, P. (2007) Blue cards, blue prospects? LSE Research Papers in Environmental and Spatial Analysis No 127, London School of Economics.CrossRefGoogle Scholar

6.Harris, J. and Todaro, M. (1970) Migration, unemployment & development: a two-sector analysis. American Economic Review, 60(1), 126–142.Google Scholar

7.Barro, R. and Sala-i-Martin, X. (1995) Economic Growth (New York, McGraw-Hill).Google Scholar

8.Topel, R. (1999) Labour markets and economic growth. In: O. Ashenfelter and D. Card (eds) Handbook of Labor Economics (Elsevier), pp. 2943–2984.Google Scholar

9.Borjas, G. J. (2001) Economics of migration. International Encyclopedia of the Social and Behavioral Sciences (Elsevier), pp. 9803–9809.CrossRefGoogle Scholar

10. In the short run, education may also increase due to the so-called ‘migration ticket’ effect. Several recent studies (e.g. F. Docquier and A. Marfouk (2004) Measuring the international mobility of skilled workers (1990–2000). Policy Research Working Paper Series 3381, The World Bank) find that migration prospects foster domestic enrolment in education as it increases the probability of finding a job abroad and hence the expected (average) return to investment in education. Kancs and Ciaian (2007) label the phenomenon of investing in education at home for migration purposes as ‘migration ticket price’.Google Scholar

11.R. E. B. Lucas (2004) International Migration to the High Income Countries: Some Consequences for Economic Development in the Sending Countries. Annual Bank Conference on Development Economics.Google Scholar

12.Lucas, R. E. B. (1987) Emigration to South Africa’s mines. The American Economic Review, 77(3), 313–330.Google Scholar

13.Borjas, G. J. (2003) The labor demand curve is downward sloping: reexamining the impact of immigration on the labor market. The Quarterly Journal of Economics, 118(4), 1335–1374.CrossRefGoogle Scholar

14.Borjas, G. J. (2005) The labor-market impact of high-skill immigration. American Economic Review, 95(2), 56–60.CrossRefGoogle Scholar

15.Borjas, G. J., Freeman, R. B. and Katz, L. (1996) Searching for the effect of immigration on the labor market. American Economic Review, 86(2), 246–255.Google Scholar

16.Filer, R. (1992) The effect of immigrant arrivals on migratory patterns of native workers. NBER Chapters. In: Immigration and the Workforce: Economic Consequences for the United States and Source Areas, pp. 245–270.Google Scholar

17.Butcher, K. F. and Card, D. (1991) Immigration and wages: evidence from the 1980’s. American Economic Review, 81(2), 292–296.Google Scholar

18.Card, D. (2005) Is the New Immigration Really So Bad? NBER Working Papers, 11547.CrossRefGoogle Scholar

19.Beine, M., Docquier, F. and Rapoport, H. (2001) Brain drain and economic growth: theory and evidence. Journal of Development Economics, 64, 275–289.CrossRefGoogle Scholar

20.Mattoo, A., Neagu, I. C. and Özden, C. (2005) Brain waste? Educated immigrants in the US labour market. World Bank Policy Research Paper, 3581.Google Scholar

21.Drinkwater, S., Eade, J. and Garapich, M. (2006) Poles apart? EU enlargement and the labour market outcomes of immigrants in the UK. IZA Discussion Papers, 2410.CrossRefGoogle Scholar

22. There are several explanations why many of highly skilled East European migrants working abroad are occupied in low-skilled jobs, where their professional qualifications are not appropriately employed. It can be explained by certain country attributes, which affect the quality of human capital accumulated at home, including the use of English as a medium of education. First, the lack of harmonisation between the educational systems within Europe implies that university diplomas from Eastern Europe often are not recognised in Western Europe. Second, in many post-Soviet transition countries, the mostly public-financed tertiary education sector produces graduates with country-specific skills rather than the internationally-applicable qualifications (Poutvaara, P. (2005) Public Education in an Integrated Europe: Studying to Migrate and Teaching to Stay? (Copenhagen Business School: CEBR). Third, the imperfections of labour markets in receiving countries, especially the administrative barriers created to protect the native workers, make skilled employment for foreigners very difficult, if not impossible. As a result, skilled immigrants from Eastern Europe receive, to a large extent, very low returns on their human capital (brain waste).Google Scholar

23.Patrinos, H. A. and Sakellariou, C. (2006) Cognitive Ability, Heterogeneity, Endogeneity and Returns to Schooling in Chile: Outcomes of the 1981 Capitation Grant Scheme (Washington, DC: World Bank).Google Scholar

24.Schiff, M. (2005) Brain gain: claims about its size and impact on welfare and growth are greatly exaggerated. The World Bank, Policy Research Working Paper Series, 3708.CrossRefGoogle Scholar

25.Borjas, G. J. (1987) Self-selection and the earnings of immigrants. American Economic Review, 77, 531–553.Google Scholar

26. In order to quantify international high skill migration, Docquier and Marfouk calculate a selection indicator, which is given by the proportion of skilled (defined as migrants with tertiary education) emigrants in the total emigration stock, see Docquier, F. and Marfouk, A. (2004) Measuring the international mobility of skilled workers (1990–2000). Policy Research Working Paper Series 3381, The World Bank.Google Scholar

27.Cox, D. (1987) Motives for private income transfers. Journal of Political Economy, 95, 508–546.CrossRefGoogle Scholar

28.Lowell, B. L. and Findlay, A. (2001) Migration of highly skilled persons from developing countries: impact and policy responses. International Migration Papers, 44 (Geneva: International Labour Office).Google Scholar

29.World Bank (2000) Higher Education in Developing Countries: Peril and Promise, Report of the Task Force on Higher Education and Society (Washington DC: World Bank).Google Scholar

30. Lowell and Findlay suggest that there might be an optimal level of emigration that stimulates the pursuit of higher education in the sending countries and spurs economic growth – see Lowell, B. L. and Findlay, A. (2001) Migration of Highly Skilled Persons from Developing Countries: Impact and Policy Responses. International Migration Papers, 44 (Geneva: International Labour Office).Google Scholar

31. According to the World Bank, especially for poor families in less developed economies, remittances often help to cope with liquidity constraints locking the access to formal education – see World Bank (2000) Higher Education in Developing Countries: Peril and Promise, Report of the Task Force on Higher Education and Society (Washington, DC: World Bank). The World Bank in this report says that about 80% of remittances transferred to Albania went to poor households. In more developed economies, educational remittances provide access to a better education and training either at home or abroad. In both cases, the remittance investment in education leads to a more educated workforce and/or a better (higher quality) education resulting in more human capital.Google Scholar

32.IMF (2007) Balance of Payments Statistics Yearbook 2007. International Monetary Fund, Statistics Department, Washington D.C.Google Scholar

33. A World Bank survey indicates that between one-third and two-thirds of migrants, depending on their country of origin, tend to use informal channels to transmit remittances – see World Bank (2006) Migration and Remittances: Eastern Europe and the Former Soviet Union (Washington, DC: World Bank).Google Scholar

34.Ledesma, M. L. and Piracha, M. (2001) International migration and the role of remittances in Eastern Europe. Studies in Economics, 0113, University of Kent.Google Scholar

35. In reality, there are many more forces at work. For example, the economic geography and urban systems literature stress that because of agglomeration economies, firms in the larger region will be able to pay higher wages, attracting even more workers. However, for the purpose of the present study, we abstract from these effects, as we think that at international scale they are less pronounced.Google Scholar

36.Bhagwati, J. N. and Hamada, K. (1974) The brain drain, international integration of markets for professionals and unemployment: a theoretical analysis. Journal of Development Economics, 1, 19–42.CrossRefGoogle Scholar

37. Given that the human capital embodied in skilled workers is draining out of the country, in the migration literature this effect is often referred to as a ‘brain drain’. A brain drain can occur when emigration of tertiary educated persons reaches significant levels and is not offset by other ‘feedback’ effects – see Lowell, B. L. and Findlay, A. (2001) Migration of Highly Skilled Persons from Developing Countries: Impact and Policy Responses. International Migration Papers, 44 (Geneva: International Labour Office).Google Scholar

38.Borjas, G. J. (1994) The economics of immigration. Journal of Economic Literature, 32, 1667–1717.Google Scholar

39. However, we acknowledge that it might be too simplistic a conclusion as wages in the sending country have to increase in line with productivity growth. If that is not the case, excessive wage increases would lead to increasing price pressures and other possible misbalances in economic growth such as, for example, overheating of the economy.Google Scholar

40.Grossman, J. B. (1982) The Substitutability of Natives and Immigrants in Production. Review of Economics and Statistics, 64, 596–603.CrossRefGoogle Scholar

41. In Table 2, we include only those papers that address the endogeneity issue. It is, moreover, important to note that many of the non-instrumented studies find that a complementarity exists between immigrant and native labour, i.e. that the wages of natives tend to increase through labour migration. However, due to the methodological problems of measuring the impact of migration, a good deal of uncertainty surrounds the empirical findings.Google Scholar

42. Some studies also report the elasticity between a percentage change in wages and the increase of the proportion of foreign citizens as a percentage, even though it is hard to interpret, as the proportion of immigrants varies greatly across countries and different time periods. The elasticity between an increase in wages and the proportion of foreign citizens of 1% has therefore been converted at the sample-mean.Google Scholar

43.Blanchflower, D., Saleheen, J. and Shadforth, C. (2007) The Impact of Recent Migration from Eastern Europe on the UK Economy (Bank of England).CrossRefGoogle Scholar

44.Gilpin, N., Henty, M., Lemos, S., Portes, J. and Bullen, C. (2006) The impact of free movement of workers from Central and Eastern Europe on the UK labour market. DWP Working Paper 29.Google Scholar

45.Wadensjö (2006) Migration to Sweden from the New EU Member States. IZA Discussion Paper, 3190.Google Scholar

46.De New, J. P. and Zimmermann, K. F. (1994) Native wage impacts of foreign labor: A Random Effects Panel Analysis. Journal of Population Economics, Springer, 7(2), 177–192.CrossRefGoogle ScholarPubMed

47.J. P. Haisken-DeNew and K. F. Zimmermann (1995) Wage and mobility effects of trade and migration. CEPR Discussion Paper 1318.Google Scholar

48.T. Bauer (1997) Do Immigrants Reduce Native Wages? Evidence from Germany (Münchner Wirtschaftswissenschaftliche Beiträge 97, University of Munich).Google Scholar

49.Gavasto, A., Venturini, A. and Villosio, C. (1999) Do immigrants compete with natives? Labour, 13, 603–622.CrossRefGoogle Scholar

50.H. Brücker, M. Kreyenfeld and J.-P. Schräpler (1999) Trade and Migration: Impact on Wages, Employment and Labour Mobility in Western Germany (Mimeo, Berlin: German Institute for Economic Research).Google Scholar

51.Hofer, H. and Huber, P. (2003) Wage and mobility effects of trade and migration on the Austrian labor market. Empirica, 30, 107–125.CrossRefGoogle Scholar

52. Migration costs include not only the physical relocation costs but also employment uncertainty (which is higher abroad than at home), social costs of leaving family and/or friends behind, cultural adjustment costs etc.Google Scholar

53.Sjaastad, L. A. (1962) The costs and returns of human migration. Journal of Political Economy, 70, 80–93.CrossRefGoogle Scholar

54.Massey, D., Arango, J., Hugo, G., Kouaouci, A., Pellegrino, A. and Taylor, J. (1998) Worlds in Motion: Understanding International Migration at the End of the Millennium (Oxford: Oxford University Press).Google Scholar

55.Massey, D. (1990) Social structure, household strategies, and the cumulative causation of migration. Population Index, 56(1), 3–26.CrossRefGoogle ScholarPubMed

56.Carrington, W. J., Detriagiache, E. and Vishwanath, T. (1996) Migration with endogenous moving costs. American Economic Review, 86(4), 909–930.Google Scholar

57.Katseli, L. T., Lucas, R. E. B. and Xenogiani, T. (2006) Effects of migration on sending countries: what do we know? OECD Development Centre Working Papers, 250.Google Scholar

58. Other, non-economic drivers such as lacking infrastructure, political instability, distrust in domestic institutions, also affect migration decisions of individuals.Google Scholar

59.Kancs, D. (2005) Can we use NEG models to predict migration flows? An example of CEE accession countries. Migration Letters, 2(1), 32–63.CrossRefGoogle Scholar

60. Because, on average, the wage rate for skilled work is higher than for unskilled work and the unemployment rate among skilled workers is lower, per capita, skilled workers contribute on average more to tax revenue than unskilled workers.Google Scholar

61.Barbone, L., Bontch-Osmolovsky, M. and Zaidi, S. (2009) The foreign-born population in the European Union and its contribution to national tax and benefit systems. World Bank, Policy Research Working Paper 4899.Google Scholar

62.Sriskandarajah, D., Cooley, L. and Reed, H. (2005) Paying Their Way: The Fiscal Contribution of Immigrants in the UK (London: Institute for Public Policy Research).Google Scholar

63.Desai, M. A., Kapur, D. and McHale, J. (2004) Sharing the spoils: taxing international human capital flows. International Tax and Public Finance (Springer), 11(5), 663–693.CrossRefGoogle Scholar

64.McKinley, T. and Griffin, K. (1994) Implementing a Human Development Strategy (London: Macmillan).Google Scholar

65. In contrast, higher tax revenue and a larger budget in the destination country imply that more expenditure can be devoted towards knowledge creation, resulting in even higher knowledge capital in the long-run. However, as we discuss below, instead of increasing spending on research and development, higher revenue might also be used to increase social spending (see also the discussion below).Google Scholar

66. The increasing share of unskilled workers results from the assumption that the ratio of skilled/unskilled migrants is higher than the ratio of skilled/unskilled domestic workforce (positive selection) see Borjas, G. J. (1987) Self-selection and the earnings of immigrants. American Economic Review, 77, 531–553.Google Scholar

67. According to the median voter theorem, politicians tend to commit to the policy position close to the preferences of the median voter – see Downs, A. (1957) An Economic Theory of Democracy (New York: Harper).Google Scholar

68. For a broader discussion for reasons driving the emergence of neo-socialism in Central and Eastern Europe see Cook, L. J., Orenstein, M. and Rueschemeyer, M. (eds) (1999) Left Parties and Social Policy in Postcommunist Europe (Eastern Europe After Communism) (Boulder Colorado: Westview Press).Google Scholar

69.Solimano, A. (2002) Globalizing Talent and Human Capital: Implications for Developing Countries (Santiago: United Nations).Google Scholar

70.Lowell, B. L. (2001) Policy response to the international mobility of skilled labor, International Migration Papers, 45, Geneva.Google Scholar

71.Carr, D. L., Markusen, J. R. and Maskus, K. E. (2001) Estimating the knowledge-capital model of the multinational enterprise. American Economic Review, 91(3), 693–708.CrossRefGoogle Scholar

72.D. Ellerman (2003) Policy research on migration and development. World Bank Policy, Research Working Paper 3117.CrossRefGoogle Scholar

73.Falvey, R., Foster, N. and Greenaway, D. (2007) Relative backwardness, absorptive capacity and knowledge spillovers. Economic Letters, 97(3), 230–234.CrossRefGoogle Scholar

74.Eaton, J. and Kortum, S. (1996) Measuring technology diffusion and the international sources of growth. Eastern Economic Journal, 22, 401–410.Google Scholar

75.Geroski, P. A. (1995) Do spillovers undermine the incentive to innovate? In: S. Dowrick (ed.) Economic Approaches to Innovation (Aldershot: Edward Elgar), 76–97.Google Scholar

76.Cohen, W. M. and Levinthal, D. A. (1989) Innovation and learning: the two faces of R&D: implications for the analysis of R&D investment. Economic Journal, 99(397), 569–596.CrossRefGoogle Scholar

77.Mansfield, E. (1981) Imitation costs and patents: an empirical study. Economic Journal, 91, 907–918.CrossRefGoogle Scholar

78.Guellec, D. and van Pottelsberghe de la Potterie, B. (2001) The internationalisation of technology analysed with patent data. Research Policy, 30(8), 1253–1266.CrossRefGoogle Scholar

79. However, as noted above, ‘adaptive’ research activities may also be funded by private companies.Google Scholar

80.UNCTAD (2005) World Investment Report, Transnational Corporations and the Internationalization of R&D (New York and Geneva: United Nations).Google Scholar

81.Jaffe, A. B., Tratjenberg, M. and Henderson, R. (1993) Geographic localisation of knowledge spillovers as evidenced by patent citations. Quarterly Journal of Economics, 108, 577–598.CrossRefGoogle Scholar

82.Audretsch, D. B. and Feldman, M. P. (1996) R&D spillovers and the geography of innovation and production. American Economic Review, 86, 630–640.Google Scholar

83.Maurseth, P. B. and Verspagen, B. (2002) Knowledge spillovers in Europe: a patent citations analysis. Scandinavian Journal of Economics, 104(4), 531–545.CrossRefGoogle Scholar

84.Peri, G. (2003) Knowledge flows, R&D spillovers and innovation. ZEW Discussion Papers 03-40, ZEW – Center for European Economic Research.Google Scholar

85.Kapur, D. (2001) Diasporas and technology transfer. Journal of Human Development, 2, 265–286.CrossRefGoogle Scholar

86.Lodigiani, E. (2008) Diaspora externalities and technology diffusion. PhD Thesis, Université Catholique de Louvain.Google Scholar

87. Some authors report that, on average, at least 50% of skilled migrants return from abroad (J. M. Johnson and M. Regets (1998) International mobility of scientists and engineers to the US-brain drain or brain circulation? NSF Issue Brief 98-316, June 22, 1998).Google Scholar

88.Meyer, J. B. and Brown, M. (1999) Scientific diasporas: a new approach to the brain drain. UNESCO MOST Discussion Paper No 41.Google Scholar