Empirical study on the correlation of corporate social responsibility with the banks efficiency and stability T. A. Vasileva, Doctor of Economic Sciences, professor, Head of Banking Department Ukrainian Academy of Banking of the National Bank of Ukraine, Sumy A. S. Lasukova, PhD candidate Ukrainian Academy of Banking of the National Bank of Ukraine, Sumy Abstract. The aim of this paper is to investigate the relationship between the corporate social responsibility concept and the most important characteristics of the banking – efficiency and stability in a sample of twelve Ukrainian banks, which are the biggest one in Ukraine according the National bank of Ukraine (NBU) classification. Our research covers the period from 2006 to 2012. Drawing on the literature review, we pointed out two main hypothesis related to the impact on the corporate social responsibility concept (CSR) of the following independent variables: 1 – efficiency (as a short term period characteristics of banking), 2 – stability (as a long term characteristics of banking). Keywords: bank, corporate social responsibility, efficiency, stability, sustainable development. 1. Introduction. Spread of the CSR concept in the developed countries ensures its implementation in different areas of activity in developing countries and provides an increase of responsibility level of liability of business entities for the consequences of their activity. Social responsibility in banking is realized in several aspects such as: providing of society sustainable development, ethical and transparent doing business, loyalty to staff, environment protection (banks could be participants of "Green Office" initiative), adjustment of connection and satisfaction of stakeholders. CSR is one of the most important instruments of ensuring of country sustainable development in general and separate business entities in particular. CSR is an integral element and a key instrument of society sustainable development concept that is declared by international organizations such as the World Bank, United Nations, European Commission: Research & Innovation – Sustainable Development) etc. The paradigm of sustainable development is based on the Triple Bottom Line (TBL) approach – sustainable development is determined through identification of influence of company on country development in context of its shareholder value (economic value), social and ecological capital (social and ecological value). These three directions are the base of any company development. In context of social and environmental projects implementation banks have an indirect impact on society and the environment through the mechanism of their customers financing. The main business practices of banks in these areas are: social and environmental risk assessment in sphere of finance; responsible lending; creating the fund of social and environmental projects financing; projects of environmental safety; socio-ecological criterion as a key factor of selecting clients selecting; disclosure of the information about social and environmental activity, information security projects. Most of these management practices of socially responsible business actively used abroad where banks operate stably for a long time. That's why nowadays it's very urgent problem for Ukraine to ensure financial stability of the bank in context of its strategic development and to provide and increase of bank performance in context of tactic of social initiatives realization. The investigations of determination the correlation between CSR and financial performance of the entity (including banks) is a key scientific problem that is described in significant amount of fundamental research papers. Among the authors of these researches should be noted such scientists as McGuire J., Sundgren A., Schneeweis T. (McGuire, J., Sundgren, A., Schneeweis, T., 1988), McWilliams A., Siegel D. (McWilliams, A., Siegel, D., 2000), Waddock S., Samuel B. (Waddock, S., Samuel, B., 1997), Cochran P., Wood R. (Cochran, P., Wood, R., 1984), Orlitzky M., Schmidt F. and Rynes S. (Orlitzky, M., Schmidt, F., Rynes, S., 2003), Aupperle K. E., Carroll A. B., Hatfield J. D. (Aupperle, K. E., Carroll, A. B., Hatfield, J. D., 1985), Moskowitz M. (Moskowitz, M., 1972), Alexander G. J.and Buchholz R. A. (Alexander, G. J., Buchholz, R. A., 1978). All this papers are devoted to the problem of identification positive, negative or neutral correlation between CSR and financial performance. The key indicators of positive connection are ROA, ROE, ROI, market share, etc. (Roman R., Hayibor S., Agle B., 1999; Ullmann A., 1985). The negative connection could be demonstrated by changing the companies share prices, their profits, dividend, etc. ( Alexander, G. J., Buchholz, R. A., 1978). So, in our research we try to investigate the correlation between CSR and two most important banks characteristics such as effectiveness and stability in Ukrainian economic conditions. Also we pointed out two aspects of banking – short- and long-term activity. In second part of research we present the theoretical model and our hypotheses, characterize the most common efficiency and stability indicators, and propose the general description of the correlation between banks CSR and stakeholder approach in the context of its sustainable development. Third part of the paper describes the data set and the variables. In the fourth part we present the methods adopted in the econometric analysis and its results and implications. In the final fifth part we present conclusions and significant issues for future research. 2. Theoretical framework and hypotheses. There are a lot of scientific studies concerning to the problem of correlation between CSR and efficiency and stability, but according to the banking practice the approach of Keffas G., Olulu-Briggs O. (Keffas, G., Olulu-Briggs, O., 2011) is the most useful. Their scientific work is devoted to researching of bank efficiency. Scientists founded out a clear correlation between CSR and the financial results in USA, UK and Japan banks. All banks in the study were divided into two groups: the first one – banks that declare the presence of corporate social responsibility, the second one – banks in which corporate social responsibility is absent. The authors note that sustainable (those that implement corporate social responsibility) banks have better capital adequacy, but a lower rate of return than banks that do not spend money on social programs. Confirming the hypothesis about the presence of a close positive correlation between corporate social responsibility and financial results, the researchers note that despite a significant reduction in liquidity socially responsible banks, implementation of social measures in their activity helps to accumulate competitive advantage in long-term perspective. According to the International Monetary Fund analytical papers key indicators of bank financial stability are those that illustrated on figure 1. According to the information that is presented on figure 1 it's necessary to highlight that determined indicators allow to identify the level of bank stability through the finance perspective as an opportunity to repay its obligations in time, absorb and hedge the risks of deposits outflow etc. But in context of corporate social responsibility concept and stakeholder approach implementation it would be reasonable to expand the list of bank financial stability indicators recommended by IMF. It's stipulated by the fact that the list of indicators presented on figure 1 allow to assess only the financial stability of the bank but ignore such important elements of sustainable development concept as social and ecological perspectives. It's necessary to identify that stakeholders' interest are varying depending on duration of cooperation with bank: most of stakeholders are interested in stable income on sufficient level in short-time period and in social status, career growth and development opportunity, stable bank development that provides an increase of society welfare level in long-term period. Thus, key stakeholders' interests in long-term period are non-material values. Therefore, the main indicator of stakeholders' interest satisfaction in long-term perspective is an indicator of bank stability and in shirt-term period – efficiency. Capital-based Liquid assets to total assets (liquid asset ratio) (core). Liquid assets to short-term liabilities (core). Customer deposits to total (noninterbank) loans. Return on assets (net income to average total assets) (core). Nonperforming loans to total gross loans (core). Sectoral distribution of loans to total loans (core). Residential real estate loans to total loans. Commercial real estate loans to total loans. Geographical distribution of loans to total loans. Foreign-currency-denominated loans to total loans. Foreign-currency-denominated liabilities to total liabilities. Income- and expense-based Regulatory capital to risk-weighted assets (core). Regulatory Tier 1 capital to risk-weighted assets (core). Capital to assets. Nonperforming loans net of provisions to capital (core). Return on equity (net income to average capital [equity]) (core). Large exposures to capital. Net open position in foreign exchange to capital (core). Gross asset and liability positions in financial derivatives to capital. Net open position in equities to capital. Asset-based Bank financial soundness indicators Interest margin to gross income (core). Trading income to total income. Noninterest expenses to gross income (core). Personnel expenses to noninterest expenses. Fig. 1. Bank financial soundness indicators recommended by International Monetary Fund (IMF, 2006) Thus, we need to propose the next hypothesis: Hypothesis 1: CSR has a positive impact on banking activity efficiency. Hypothesis 2: CSR has a positive impact on bank stability. It's necessary to highlight that nowadays there is an opportunity to check this hypothesis only with the help of bank financial stability indicators, because there are no data for quantification of social and ecological aspects of banking activity. Hypothesis 3: There is a time log of CSR measures on financial stability of the bank. 3. Methodology, data description and variables. The methodology of banking business efficiency assessment could be presented by the next groups of methods (Khailuk S. O., Melnyk T. M., 2010): coefficient method (traditional method); parametric methods (econometric analysis); non-parametric methods (mathematics programming); rating methods; analytical methods (DuPont model); value-based methods (for example EVA® economic value added). Change of the paradigm of banking business doing, implementation of social aspects in its activity, development of scientific approaches in efficiency assessment sphere provides the usage both traditional and more modern and substantial methods that give an opportunity to get structured and scale outputs on banking business efficiency. Parametric and non-parametric methods differs by the kind of functional level of efficiency, presence of random variable and character of its distribution, and instruments of comparative assessment of research objects. Critical literature review of theoretical approaches to the assessment of the banking activity efficiency level allows to define the most appropriate group of methods for the research. From our point of view the parametric methods are more suitable because of its opportunity for identification the discrepancy in efficiency / stability level of banking activity in the whole sampling. The specific feature of this group of methods is the identification of the most effective bank in the whole sampling and comparison the efficiency level of other banks with it. In our opinion, there is no absolutely effective in stable bank in the sampling, that's why the stochastic frontier approach (SFA) is the most appropriate. According to this method, there should be built a conventional bank with 100% efficiency / stability level on the base of information database and than the impact of the factors on separate bank activity results could be identified. Thus, the indicator of lost efficiency / stability is determined. There is should be clarified the key quantitative parameter which identify the bank efficiency as profit before tax for confirmation or refutation of hypothesis 1. Its can be argued by using the productive approach. According to the theory of financial intermediation the main goal of the banking business is to make profit. It's necessary to highlight that on the bank efficiency estimation stage the productive approach is admissible in consideration of CSR concept and doesn’t contradict to the stakeholder approach and the principles of socially responsible business and determine the possibility of expanding range of social initiatives of the bank. To confirm or refute the hypothesis 2 we will be guided by empirical studies of foreign scientists (Roy A.D., 1952; Čihák M., 2006; Boyd J. H. and Runkle D. E., 1993; Maechler A., Srobona M. and Worrell DeLisle, 2005; Schaeck K., Čihák M. and Wolfe S., 2006) and official documents of the IMF, where the composite indicator 𝑍𝑠𝑐𝑜𝑟𝑒 was identified as bank stability indicator. 𝑍𝑠𝑐𝑜𝑟𝑒 indicator was proposed by Roy A. D. (Roy A.D., 1952) and its calculation provides the probability of bankruptcy (insolvency) of the bank. 𝑍𝑠𝑐𝑜𝑟𝑒 calculation presented on the following formula (1): 𝑍𝑠𝑐𝑜𝑟𝑒𝑖𝑡 = ̅̅̅̅̅̅𝑖𝑡 ) (𝐸𝐴𝑖𝑡 + 𝑅𝑂𝐴 ⁄ √𝑉𝑎𝑟(𝑅𝑂𝐴𝑖𝑡 ) (1) where, 𝑍𝑠𝑐𝑜𝑟𝑒𝑖𝑡 – stability indicator of bank i in period t; 𝐸𝐴𝑖𝑡 – correlation between equity capital on bank i and its total asset in period t; ̅̅̅̅̅̅𝑖𝑡 – return on asset mean of bank i in period t; 𝑅𝑂𝐴 𝑉𝑎𝑟(𝑅𝑂𝐴𝑖𝑡 ) – variance of 𝑅𝑂𝐴 of bank i in period t. Increasing the value of 𝑍𝑠𝑐𝑜𝑟𝑒 shows increased stability of the bank and its reduction on the contrary – to increase the probability of bank failure. The economics model formalization will be actualizing by example of hypothesis 1. Objects of the model of correlation between CSR and bank efficiency are twelve Ukrainian banks, which are the biggest one in Ukraine according the NBU classification: Public Joint Stock Company “Privatebank”, Joint-stock company “Oschadbank”, Public Joint Stock Company “Raiffeisen Bank Aval”, Public Joint Stock Company “FUIB”, Public Joint Stock Company “UkrSibbank”, Public Joint Stock Company “Nadra”, Public Joint Stock Company “Finance and Credit Bank”, Public Joint Stock Company “Brokbiznesbank”, Joint Stock Company “OTPbank”, Public Joint Stock Company “Ukrhasbank”, Public Joint Stock Company “Alfabank”. The objects selection of study specified by: constant presence within the first group according to NBU classification (banks – market makers); the high level of bank transparency; fulfillment of economics model conditions of homogeneity and comparability of panel structure of data; opportunity to compare the efficiency of CSR banks and non-CSR banks (JSC “Oschadbank”, JSC “OTPbank”, PJSC “Ukrhasbank”). The objective function of the efficiency model is represented as a profit before tax (formula 2), which allows to take into account not only the interests of business owners (such as the use of net profit variable), but also other stakeholders, including staff (timely and adequate salaries), government (the size of tax revenue) and others (Battese G., Coelli T., 1995; Berger A., Humphrey D., 1997; Buriak, A. 2012). 𝑂𝑃𝑖 = 𝑓(𝜇; 𝑍𝑖 ) + 𝑡𝑖 − 𝑟𝑖 , (2) where 𝑂𝑃𝑖 – profit before tax of bank i; 𝜇 – the group of resultant variable; Zi – the group of direct impact variables of bank i; 𝑡𝑖 – statistical error; 𝑟𝑖 – inefficiency indicator (shows the indirect factors influence on bank activities and calculated on the base of truncated distribution law). The input, output and optional variables are the information background of the economics model, provides to bank the opportunity of acting like financial intermediary and making profit. This parameters was studied thorough in paper Buriak A. (Buriak A. V., 2012) and used to modify the SFA method in the context of the banking business. At the same time, in our research the CSR parameter was included to modified SFA method as an independent variable which helps to determine the correlation between the efficiency of bank business and its corporate social responsibility (figure 2) Production function 𝑂𝑃𝑖 = 𝑓(𝜇; 𝑍𝑖 ) + 𝑡𝑖 − 𝑟𝑖 Input variables Output variables Sa – General administrative costs per unit of total income of the bank Sb – Salaries, marketing and advertising costs per unit of total revenues Yc – Share of bad loans in bank credit portfolio Ip – Percentage of net interest income generated per unit of operating assets (net profit margin) In – Percentage of net non-profit income generated per unit of operating assets (net non-profit margin) Yf – Bank net interest spread Asset – Bank asset size Optional variables CSR (independent variable) Fig. 2. Input and output parameters of the model of estimation the efficiency of the banking business The data collection process covers the period from 2007 until 2012. SFA method provides the application software FRONTIER Version 4.1 for evaluating the effectiveness of the bank business. This software use maximum likelihood method in estimation of model variables. One of the characteristics of economics model is using the translog production function which provides te identification of the impact of various factors on the efficiency of the bank (formula 3): ln ( 𝑂𝑃′𝑖𝑡 𝐴𝑠𝑠𝑒𝑡𝑖𝑡 ) = 𝜇0 + ∑2𝑝=1 𝜇1 ln(𝐼𝑝𝑖𝑡 ) + ∑2𝑛=1 𝜇2 ln(𝐼𝑛𝑖𝑡 ) + ∑2𝑎=1 𝜇3 ln(𝑆𝑎𝑖𝑡 ) + ∑2𝑏=1 𝜇4 ln(𝑆𝑏𝑖𝑡 ) + ∑2𝑐=1 𝜇5 ln(𝑌𝑐𝑖𝑡 ) + 1 1 2 2 ∑2𝑓=1 𝜇6 ln(𝑌𝑓𝑖𝑡 ) + ∑2𝑝=1 𝜇7 ln(𝐼𝑝𝑖𝑡 ) ∗ ln(𝐼𝑝𝑖𝑡 ) + ∑2𝑛=1 𝜇8 ln(𝐼𝑛𝑖𝑡 ) ∗ 1 1 2 2 ln(𝐼𝑛𝑖𝑡 ) + ∑2𝑎=1 𝜇9 ln(𝑆𝑎𝑖𝑡 ) ∗ ln(𝑆𝑎𝑖𝑡 ) + ∑2𝑏=1 𝜇10 ln(𝑆𝑏𝑖𝑡 ) ∗ ln(𝑆𝑏𝑖𝑡 ) + 1 2 1 ∑2𝑓=1 𝜇11 ln(𝑌𝑓𝑖𝑡 ) ∗ ln(𝑌𝑓𝑖𝑡 ) + ∑2𝑐=1 𝜇12 ln(𝑌𝑐𝑖𝑡 ) ∗ 2 1 ln(𝑌𝑐𝑖𝑡 ) + ∑2𝑝=1 ∑2𝑛=1 ln(𝐼𝑛𝑖𝑡 ) 𝜇13 ln(𝐼𝑝𝑖𝑡 ) ∗ ln(𝐼𝑛𝑖𝑡 ) + … + ∑30=1 𝜕0 𝑞0𝑡 + 2 ln(𝑡𝑖𝑡 ) − ln(𝑟𝑖𝑡 ) (3) where qot– dummy variable of quarter. The formula 3 shows that the model was included a dummy variable that identifies the quarter (qot). This parameter allows to consider the seasonal factor that is inherent in the banking and significantly affects banks performance. There are only two alternatives of applying the concept of CSR in banks - to implement or not implement the social aspects of their activities, therefore, in our opinion, the binary method is the best method to make results for the CSR to the comparable form according to the SFA method. So, parameter 1 is getting by bank which use CSR, if not – 0 (formula 4) 0, 𝑖𝑓 𝑏𝑎𝑛𝑘 𝑑𝑜𝑒𝑠 𝑛𝑜𝑡 𝑖𝑚𝑝𝑙𝑒𝑚𝑒𝑛𝑡 𝑡ℎ𝑒 𝐶𝑆𝑅 𝑐𝑜𝑛𝑐𝑒𝑝𝑡 𝐶𝑆𝑅 = { 1, 𝑓 𝑏𝑎𝑛𝑘 𝑖𝑚𝑝𝑙𝑒𝑚𝑒𝑛𝑡 𝑡ℎ𝑒 𝐶𝑆𝑅 𝑐𝑜𝑛𝑐𝑒𝑝𝑡 4. Results. (4) The results of practical approbation the economics model of identifying the correlation between CSR and bank efficiency and stability presented in table 1 Table 1: The results of testing the economics model of the correlation between CSR and efficiency and stability of the banking business (fragment) Independent variables Coefficient Standard error T-ratio Confidence interval 5% CSRH1 -1,5486 0,0074 -2,0677 Confidence interval 1% CSRH2 -1,8451 0,3262 -5,6550 In our economics model we used the maximum likelihood method for estimation the translog production function (for H1 – profit before tax, for H2 – bank financial stability as a 𝑍𝑠𝑐𝑜𝑟𝑒). The adequacy test of the model effects by comparing the value of log likelihood function with the Pearson's chi-squared test (likelihood ratio). The result of testing the hypothesis about correlation between CSR and effectiveness of bank business indicate the level of log likelihood function such as -255,33 not exceeding the Pearson's chi-squared ratio such as 15,66. As for hypothesis about correlation between CSR and bank financial stability, the value of log likelihood function was identified as -364,82<15,66. Thereby the both economics models are adequate. The independent variable CSRH1 has a minus sign what concerning to its economical essence: fewer social activities implemented by bank, the greater is its deviation from the reference level of efficiency, the greater is the amount of foregone earnings of the bank. Thereby the hypothesis 1 is confirmed. The independent variable CSRH2 according to t-ratio disposed in 1% confidence interval. This suggests the importance of correlation between the results of the CSR concept and bank sustainability, whereas the actual value of Student's tratio exceeds the critical (5,6550> 2,7500). The independent variable CSRH2 has a minus sign what concerning to its economical essence. The modified stochastic frontier approach, which is used in our research, suppose the necessity of identification the index of lost stability. Thus, the index of lost stability (deviation from the reference frontier of stability) on the assumption of results of estimating the correlation between CSR and bank financial stability, is inversely proportional to the investment in social initiatives. Thereby hypothesis of correlation between CSR and financial stability is confirmed. Hypothesis 3 of presence of time lag in social arrangements that influences on bank financial stability was put forward in our economics model. Time separation between independent variable – 𝑍𝑠𝑐𝑜𝑟𝑒, and input model parameters was suggests for confirmation hypothesis or its dismissal. The results of hypothesis testing are presented in table 2. Table 2: The results of testing the time lag in social arrangements that influences on bank financial stability Standard error Displacemen (compared with Model Hypothesis t of CSR a model without adequacy data displacement of CSR data) -295,47 one year 0,4418>0,3262 >15,66 CSR has two years -221,40 influence 0,6843>0,3262 >15,66 on bank three years financial stability -149,85 with time 5,0004>0,3262 >15,66 lag Suggestion The hypothesis was not confirmed, the value of the standard error increases with the displacement data of CSR, the value of log likelihood function increases with the displacement data 5. Discussion and conclusion. The data analysis presented in table 2 illustrates the absence of time lag in social arrangements that influences on bank financial stability. That is confirmed of smaller value of standard error comparing to model without displacement of CSR data. That conclusion suggests the necessity of long-term strategy of implementing the social arrangements in bank which provides the positive influence on bank financial stability year-by-year. The model estimation results presented in table 1, 2 confirm the foundations outlined above implementation of the concept of corporate social responsibility – the single social arrangements has no economic value and does not effect on efficiency and stability of the bank during the long period of time. That is why the implementation of CSR measures in the current year does not affect the bank's financial position as follows. Based on this conclusion, the CSR concept should be durable and planned qualities which help to increase the efficiency of the bank and its stability as a whole. To sum up the findings of investigations the following should be mentioned. CSR concept can ensure to bank the financial and nonfinancial advantages in contemporary competitive conditions. There is a positive correlation between CSR and efficiency of banking business which is one of the prerequisites for successful implementation of the social initiative of its activities. It should be emphasized that the results for banks that are not market-makers (second, third, fourth group of the National bank of Ukraine classification) may differ from those that are achieved in the study. Recommendations for the full-scale implementation of the CSR concept should be provided, taking into account the bank's market share, its specific activity. However, every bank, represented by its decision-making body, should understand the level of its responsibility to society and strive for sustainable development of bank and, as a result, the research study on the advantages of CSR concept implementation in the banking activity as one of the fundamental element of bank development strategy becomes very urgent. References McGuire, J., Sundgren, A., Schneeweis, T. 1988 “Corporate social responsibility and firm financial performance”, Academy of Management Journal, No 31 (4), pp.854-872. McWilliams, A., Siegel, D. 2000 “Corporate social responsibility and financial performance: Correlation or misspecification?”, Strategic Management Journal, No 21 (5), pp. 603-609. Waddock, S. A., Samuel, B. G. 1997 “The corporate social performance – financial performance link.” Strategic Management Journal, no 18 (4), pp. 303319 Cochran, P. L., and R. A. Wood 1984 “Corporate social responsibility and financialperformance.” Academy of Management Journal, no 27 (1), pp. 42-56. Orlitzky, M., Schmidt, F., Rynes, S. 2003 “Corporate social and financial performance: A meta-analysis”, Organization Studies, vol. 24, no. 3, pp. 403. Aupperle, K. E., Carroll, A. B., Hatfield, J. D. 1985 “An empirical examination of the relationship between corporate social responsibility and profitability”, Academy of Management Journal, No 28 (2), pp. 446-463. Moskowitz, M. 1972 “Choosing socially responsible stocks.” Business and SocietyReview, no 1, pp. 71-75. Alexander, G. J., and Rogene A. Buchholz 1978 “Corporate social responsibility and stock market performance.” Academy of Management Journal, no 21 (3), pp. 479-486. Keffas, G., Olulu-Briggs, O. 2011”Corporate social responsibility: how does it affect the financial performance of banks? Empirical evidence from US, UK and Japan”, Journal of Management and Corporate Governance, Vol. 3 (March), pp. 8-26. Roman, R. M., S. Hayibor, and B. R. Agle (1999) “The relationship between social andfinancial performance.” Business & Society, 38: 109-125. Ullmann, A. 1985, “Data in search of a theory: a critical examination of the relationship among social performance, social disclosure, and economic performance”, Academy of Management Review, no10, pp. 450–477. Financial Soundness Indicators: Compilation Guide 2006, International Monetary Fund, Publication Services, Washington, D.C., 300 p. <http://www.imf.org/external/pubs/ft/fsi/guide/2006/index.htm> Khailuk, S. O., Melnyk, T. M. (2010) “Using nonparametric methods for evaluating the efficiency, effectiveness and productivity of domestic banks,” Aktyalni problemy ekonomiky, 11 (113), pp. 263-276 (In Ukrainian) Roy, A.D. 1952 “Safety First and the Holding of Assets”, Econometrica, no 20., pp. 431-449/ Čihák, Martin, 2006, “How Do Central Banks Write on Financial Stability?” IMF Working Paper, no 06/163 (Washington: International Monetary Fund) Boyd, John H., and David E. Runkle, 1993, “Size and Performance of Banking Firms,” Journal of Monetary Economics, Vol. 31, pp. 47–67. Maechler, Andrea, Srobona Mitra, and DeLisle Worrell, 2005, “Exploring Financial Risks and Vulnerabilities in New and Potential EU Member States,” Second Annual DG ECFIN Research Conference: “Financial Stability and the Convergence Process in Europe,” October 6–7. Schaeck, Klaus, Martin Čihák, and Simon Wolfe, 2006, “Are More Competitive Banking Systems More Stable?,” IMF Working Paper 06/143 (Washington: International Monetary Fund). Battese, G. 1995 “A model for technical inefficiency effects in a stochastic frontier production function for panel data” / G. Battese, T. Coelli/ Empirical Economics, no 20, pp. 325-332. Berger, A. 1997 “Efficiency of financial institutions: International survey and directions for future research”, European Journal of Operational Research, no 98(2), pp. 175-212. Buriak, A. V. (2012) Banking performance management : the dissertation for reception of scientific degree of candidate of economic science on speciality 08.00.08 – Money, finance and credit. – State Higher Educational Institution “Ukrainian Academy of Banking of the National Bank of Ukraine”,Sumy. – 268 p. (In Ukrainian) Frontier V4.1: Centre for Efficiency and <http://www.uq.edu.au/economics/cepa/frontier.php> Productivity Analysis