[Abrhám, J., Bilan, Y., Krauchenia, A., & Strielkowski, W. (2015). Planning horizon in labour supply of Belarusian small entrepreneurs. Economic Research-Ekonomska Istraživanja, 28(1), 773-787. doi:10.1080/1331677X.2015.108423810.1080/1331677X.2015.1084238]Search in Google Scholar
[Assaf, A. G., & Josiassen, A. (2016). Frontier analysis: A state-of-the-art review and meta-analysis. Journal of Travel Research, 55(5). doi:10.1177/004728751556977610.1177/0047287515569776]Search in Google Scholar
[Barr, N. (2012). Economics of the welfare state. Oxford: Oxford University Press.]Search in Google Scholar
[Berger, A. N., Hunter, W. C., & Timme, S. G. (1993). The efficiency of financial institutions: A review and preview of research past, present and future. Journal of Banking & Finance, 17(2-3). doi:10.1016/0378-4266(93)90030-H10.1016/0378-4266(93)90030-H]Search in Google Scholar
[Caves, R. (1992). Determinants of technical efficiency in Australia. In R. Caves (Ed.), Industrial efficiency in six nations (pp. 241-272). Cambridge, MA: MIT Press.]Search in Google Scholar
[Caves, R., & Barton, D. (1990). Efficiency in US: Manufacturing industries. Cambridge, MA: MIT Press.]Search in Google Scholar
[Daraio, C., & Simar, L. (2007). Advanced nobust and nonparametric methods in efficiency analysis. Methodology and applications. New York: Springer.]Search in Google Scholar
[Durst, S., Mention, A., & Poutanen, P. (2015). Service innovation and its impact: What do we know about?. Investigaciones Europeas de Dirección y Economía de la Empresa, 21(2). doi: 10.1016/j.iedee.2014.07.00310.1016/j.iedee.2014.07.003]Search in Google Scholar
[Etikan, I., Musa, S. A., & Alkassim, R. S. (2016). Comparison of convenience sampling and purposive sampling. American Journal of Theoretical and Applied Statistics, 5(1), 1-4. doi: 0.11648/j.ajtas.20160501.1110.11648/j.ajtas.20160501.11]Search in Google Scholar
[Gnusowski, M., Goncharuk, A. G., Skąpska, E., & Domakur, O. (2017). Theoretical components of intra-industry service development strategy. European Journal of Service Management, 22(2), 21-29.10.18276/ejsm.2017.22-03]Search in Google Scholar
[Gonçalves, M. (2016). Eastern Europe regional bloc: CEE and CIS. In: P. J. Romero, J. A. Edwards (Eds.), Eastern European economies: A region in transition (pp. 39-63). Business Expert Press.]Search in Google Scholar
[Grönroos, C., & Ojasalo, K. (2015). Service productivity as mutual learning. International Journal of Quality and Service Sciences, 7(2/3), 296-311. doi:10.1108/IJQSS-03-2015-003510.1108/IJQSS-03-2015-0035]Search in Google Scholar
[Hrechyshkina, O., & Samakhavets, M. (2019). Foreign trade of the Republic of Belarus in the international business environment. Bulletin of Geography. Socio-economic Series, 44(44), 47-55. doi:10.2478/bog-2019-001410.2478/bog-2019-0014]Search in Google Scholar
[Jarraya, B., & Bouri, A. (2014). Optimal production plan and profit efficiency in European non-life insurance companies. Procedia Economics and Finance, 13, 69-81. doi:10.1016/S2212-5671(14)00431-610.1016/S2212-5671(14)00431-6]Search in Google Scholar
[Makrevska Disoska, E. (2016). Re-shaping the model of economic growth of the CEE countries. Baltic Journal of European Studies, 6(2), 137-159. doi:10.1515/bjes-2016-001610.1515/bjes-2016-0016]Search in Google Scholar
[Mihályi, P. (2017). The motivation of business leaders in socialist and market-based systems. Economics and Business Review, 3(17), 100-111. doi: 10.18559/ebr.2017.3.610.18559/ebr.2017.3.6]Search in Google Scholar
[Moeller, S. (2010). Characteristics of services—a new approach uncovers their value. Journal of Services Marketing, 24(5), 359-368. doi:10.1108/0887604101106046810.1108/08876041011060468]Search in Google Scholar
[North, D. C. (2005). Understanding the process of economic change. Princeton and Oxford: The Princeton Economic History of the Western World.10.1515/9781400829484]Search in Google Scholar
[Reiff, M., & Tokar, V. (2016). Post-communist financial and economic development: Cluster analysis of selected countries. Economic Annals-XXI, 161(9-10).10.21003/ea.V161-03]Search in Google Scholar
[Roche, I. C., & Sellers-Rubio, J. R. (2019). Retail services efficiency: Impact of country-specific factors. International Journal of Retail & Distribution Management, 47(8), 774-792. doi:10.1108/IJRDM-12-2018-027.]Search in Google Scholar
[Rollnik-Sadowska, E. (2019). Efektywność instytucji publicznych – przykład powiatowych urzędów pracy w Polsce. Pojęcie, determinanty, metodyka pomiaru. Białystok: Oficyna Wydawnicza Politechniki Białostockiej. doi: 10.24427/978-83-65596-96-3]Search in Google Scholar
[Sandeep, K. (2011). Defining service and non-service exchanges. Service Science, 3(4), 313-324. doi:10.1287/serv.3.4.31310.1287/serv.3.4.313]Search in Google Scholar
[Sergi, B. S. (Ed.) (2020). Entrepreneurship and economic growth. Modeling economic growth in contemporary Belarus (vol. 1). Bingley: Emerald Publishing.]Search in Google Scholar
[Simar, L., & Wilson, P. W. (2007). Estimation and inference in two-stage, semi-parametric models of productive efficiency. Journal of Econometrics, 136(1). doi:10.1016/j. jeconom.2005.07.009]Search in Google Scholar
[Skąpska, E. (2016). Services from the perspective of sectors in countries of The Commonwealth of Independent States. International Journal of Advances in Management and Economic, 5(2), 51-56.]Search in Google Scholar
[Skąpska, E. (2019). Racjonalność gospodarowania. Perspektywa usług [Rationality of Economic Management. Service Industry Point of View]. Warszawa: CeDeWu.]Search in Google Scholar
[Skąpska, E., Rollnik-Sadowska, E., & Kunicka, E. (2017). Methods of increasing labour productivity in service enterprise. Olsztyn Economic Journal, 12(4), 387-399. doi:10.31648/oej.283810.31648/oej.2838]Search in Google Scholar
[Steers, R. M. (1975). Problems in the measurement of organizational effectiveness. Administrative Science Quarterly, 20, 546-558.10.2307/2392022]Search in Google Scholar
[Sujová, A. K., Marcineková, K., & Simanová, Ľ. (2019). Influence of modern process performance indicators on corporate performance—the empirical study. Engineering Management in Production and Services, 11, 119-129. doi:10.2478/emj-2019-001510.2478/emj-2019-0015]Search in Google Scholar
[Van Biema, M., & Greenwald, B. (1997). Managing our way to higher service-sector productivity. Harvard Business Review, 75(4), 87-95.]Search in Google Scholar
[Vidovic, H. (2002). The services sectors in Central and Eastern Europe. Research Reports. The Vienna Institute for International Economic Studies, 289, 503-514.]Search in Google Scholar