[1] ARIU, Andrea (2012) – Services versus Goods Trade: Are They the Same? National Bank of Belgium Working Paper, No. 237, December. 35 p.

[2] ARIU, Andrea (2014) – Crisis-proof Services: Why Trade in Services did not Suffer during the 2008–2009 Collapse. European Central Bank Working Paper, No. 1691, July. 34 p.

[3] ARIU, Andrea, MION, Giordano (2010) – Trade in Services: IT and Task Content. National Bank of Belgium Working Paper, No. 200, October. 56 p.

[4] BENKOVSKIS, Konstantins (2015) – Misallocation of Resaurces in Latvia: Did Anything Change after the Crisis? Latvijas Banka Working Paper, No. 5/2015. 31 p.

[5] BENKOVSKIS, Konstantins, BERZINA, Santa, ZORGENFREIJA, Liva (2015) – Evaluation of Latvia's Re-exports Using Firm-level Data. Latvijas Banka Discussion Paper, No. 3/2015. 23 p.

[6] BORCHERT, Ingo, MATTOO, Aaditya (2009) – The Crisis-resilience of Services Trade. The Service Industries Journal, vol. 30, issue 13, pp. 2115–2136.

[7] BREINLICH, Holger, CRISCUOLO, Chiara (2011) – International Trade in Services: A Portrait of Importers and Exporters. Journal of International Economics, vol. 84, issue 2, pp. 188–206.

[8] COMUNALE, Mariarosaria (2015) – Lithuanian Exports: Are Services and Modern Services Different? Lietuvos bankas Occasional Paper, No. 01/2015. 42 p.

[9] CONTI, Giuliano, LO TURCO, Alessia, MAGGIONI, Daniela (2010) – Exporters in Services: New Evidence from Italian Firms. Applied Economics Quarterly, vol. 56, No. 1, pp. 73–98.

[10] EICHELPASCH, Alexander, VOGEL, Alexander (2009) – Determinants of Export Behaviour of German Business Services Companies. DIW Berlin German Institute for Economic Research Discussion Paper, No. 876, April. 32 p.

[11] FEDERICO, Stefano, TOSTI, Enrico (2012) – Exporters and Importers of Services: Firm-level Evidence on Italy. Banca d'Italia Working Paper, No. 877, September. 51 p.

[12] FRANCOIS, Joseph, HOEKMAN, Bernard (2010) – Services Trade and Policy. Journal of Economic Literature, vol. 48, No. 3, September, pp. 642–692.

[13] HALLER, Stefanie A., DAMIJAN, Joze, KAITILA, Ville, KOSTEVC, Crt, MALIRANTA, Mika, MILET, Emmanuel, MIRZA, Daniel, ROJEC, Matija (2014) – Trading Firms in the Services Sectors: Comparable Evidence from Four EU Countries. Review of World Economics, vol. 150, issue 3, August, pp. 471–505.

[14] IMF (2005) – Balance of Payments Manual, 5th edition. Washington. 191 p.

[15] IMF (2013) – Balance of Payments and International Investment Position Manual, 6th edition. Washington, November. 371 p.

[16] KELLE, Markus (2012) – Crossing Industry Borders: German Manufacturers as Service Exporters. The Vienna Institute for International Economic Studies WIIW Working Paper, No. 92, July. 39 p.

[17] KELLE, Markus, KLEINERT, Jorn (2010) – German Firms in Service Trade. Applied Economics Quarterly, vol. 56, issue 1, pp. 51–72.

[18] KELLE, Markus, KLEINERT, Jorn, RAFF, Horst, TOUBAL, Farid (2013) – Cross-border and Foreign Affiliate Sales of Services: Evidence from German Microdata. The World Economy, vol. 36, issue 11, November, pp. 1373–1392.

[19] KOX, Henk, ROJAS-ROMAGOSA, Hugo (2010) – Exports and Productivity Selection Effects for Dutch Firms. De Economist, vol. 158, issue 3, September, pp. 295–322.

[20] LOOF, Hans (2010) – Are Services Different Exporters? Applied Economics Quarterly, vol. 56, No. 1, January, pp. 99–117.

[21] LOS, Bart, TIMMER, Marcel, DE VRIES, Gaaitzen (2015) – Global Value Chains: 'Factory World' is Emerging. In: The Age of Global Value Chains: Maps and Policy Issues. Ed by J. Amador and F. di Mauro. VoxEU.org eBook, CEPR Press, pp. 36–47.

[22] MALCHOW-MOLLER, Nikolaj, MUNCH, Jakob, SKAKSEN, Jan Rose (2015) – Services Trade, Goods Trade and Productivity Growth: Evidence from a Population of Private Sector Firms. Review of World Economics, vol. 151, issue 2, pp. 197–229.

[23] MELITZ, Marc (2003) – The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity. Econometrica, vol. 71, No. 6, November, pp. 1695–1725.

[24] MORIKAWA, Masayuki (2015) – Service Trade and Productivity: Firm-level Evidence from Japan. RIETI Discussion Paper, No. 15-E-030, March. 31 p.

[25] PUTNINS, Talis, SAUKA, Arnis (2014) – Shadow Economy Index for the Baltic Countries. The Centre for Sustainable Business at SSE Riga. 49 p.

[26] TEMOURI, Yama, VOGEL, Alexander, WAGNER, Joachim (2013) – Self-Selection into Export Markets by Business Services Firms – Evidence from France, Germany and the United Kingdom. Structural Change and Economic Dynamics, vol. 25, issue C, June, pp. 146–158.

[27] VOGEL, Alexander, WAGNER, Joachim (2011) – Robust Estimates of Exporter Productivity Premia in German Business Services Enterprises. University of Lόneburg Working Paper, No. 207, July. 27 p.

[28] WAGNER, Joachim (2012) – International Trade and Firm Performance: A Survey of Empirical Studies since 2006. Review of World Economics, vol. 148, issue 2, June, pp. 235–267.

[29] WAGNER, Joachim (2007) – Exports and Productivity: A Survey of the Evidence from Firm-level Data. The World Economy, vol. 30, issue 1, January, pp. 60–82.

[30] WALTER, Patricia, DELL'MOUR, Rene (2010) – Firm Level Analysis of International Trade in Services. Irving Fisher Committee on Central Bank Statistics Working Paper, No. 4, March. 30 p.