T. Gries, S. Gravemeyer, and J. Xue, “Income Determination and Income Discrimination in Shenzhen,” Urban Studies, vol. 48, no. 7, pp. 1457–1475, 2011.
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DOI: 10.1177/0042098010375317

T. Gries, M. Kraft, and D. Meierrieks, “Financial Deepening, Trade Openness and Economic Growth in Latin America and the Caribbean,” Applied Economics, vol. 43, no. 30, pp. 4729–4739, 2011.
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DOI: 10.1080/00036846.2010.498352

T. Gries, T. Krieger, and D. Meierrieks, “Causal Linkages Between Domestic Terrorism and Economic Growth,” Defence and Peace Economics, vol. 22, no. 5, pp. 493–508, 2011.
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DOI: 10.1080/10242694.2010.532943

T. Gries, M. Kraft, and C. Piek, “Interregional Migration, Self-selection and the Returns to Education in Brazil,” The Annals of Regional Science, vol. 46, no. 3, pp. 707–732, 2011.
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DOI: 10.1007/s00168-009-0344-1

T. Gries and M. Redlin, Trade Openness and Economic Growth: A Panel Causality Analysis, vol. 2011–06. Paderborn University, CIE Center for International Economics, 2011.
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B. Hehenkamp and O. Kaarboe, “Paying for Performance in Hospitals,” Economic Analysis and Policy, vol. 41, no. 1, pp. 49–70, 2011.
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DOI: 10.1016/s0313-5926(11)50004-9

H. Schmitz, P. Eibich, and N. R. Ziebarth, “Zusatzbeiträge erhöhen die Preistransparenz: mehr Versicherte wechseln die Krankenkasse,” in Wochenbericht, vol. 87, DIW Berlin, Ed. German Institute for Economic Research, 2011, pp. 3–12.
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H. Schmitz and B. Augurzky, Kosteneffizienz Deutscher Krankenhäuser im Bundeslandvergleich. 2011.
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H. Schmitz and A. Wübker, “What determines influenza vaccination take-up of elderly Europeans?,”10.1002/hec.1672__Health Economics, vol. 20, no. 11, pp. 1281–1297, 2011, doi:10.1002/hec.1672 .
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DOI: 10.1002/hec.1672

H. Schmitz, “Direct evidence of risk aversion as a source of advantageous selection in health insurance,”10.1016/j.econlet.2011.06.016__Economics Letters, vol. 113, no. 2, pp. 180–182, 2011, doi:10.1016/j.econlet.2011.06.016 .
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