Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Liquidity Shortage in Banks. The Case of Poland Mateusz Mokrogulski* The aim of this paper is the empirical analysis of changes in liquidity position of the Polish banks during the recent financial and economic crisis. Although the Polish economy did not plunge into the recession, the banking sector temporarily faced liquidity shortages. In Q4 2008 bank interest rates on term deposits began to rise, much above the interbank interest rates. The fears regarding liquidity occurred again in 2011, along with the European sovereign debt crisis. The relationship between bank interest rates fluctuations and deposit changes is studied using the correlation analysis. The results show that steps taken by the banks brought generally positive effects and the deposit base was sufficiently strengthened. Moreover, the paper contains institutional issues, i.e. an overview of steps taken by the institutions in Poland, namely the Polish Financial Supervision Authority (KNF) and the National Bank of Poland (NBP) that helped overcome the turbulent times owing to their active role. The presented analysis is also forward-looking as it raises the problem of new liquidity standards, i.e. LCR and NSFR, which will represent a real challenge for the banks in the European Union. In case of Poland it is especially long-term funding that is now a top priority for the banking sector. JEL Codes: D20, G21, G28 1. Introduction The objective of this paper is to describe the problem of liquidity in Polish banks in years 2008-2013. The studies on bank liquidity are now gaining popularity due to gradual introduction of liquidity standards in the European Union. Because of this, banks will have to pay more attention to the volume of liquid sources they possess. Apart from that, banks’ activities affect the real economy through the credit channel and have an influence on the volume of savings. The presented analysis covers bank interest rate fluctuations together with changes in the volume of deposits. Except for the observed tendencies, the possible outcomes for the banks are described. The findings are of a quantitative type in a form of correlation coefficients, as well as the values of selected indicators. Poland is also compared to other EU countries with respect to profitability. Moreover, the paper contains the institutional matters. i.e. it shows the active role of the Polish Financial Supervision Authority (KNF) and the National Bank of Poland (NBP) during the crisis time. The presented study is first and foremost empirical. The findings are put together with the liquidity position of the Polish banks. In this respect they are new as so far that type of research on the Polish banking sector has not been performed. The paper consists of the introduction, four chapters (on literature review, the methodology, findings, and institutional issues), as well as the summary and conclusions. ______________________________________________________________________ *Dr Mateusz Mokrogulski, Department of Economics II, Warsaw School of Economics, Poland, email: mmokro@sgh.waw.pl 1 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 2. Literature Review In the literature the emphasis is put on the importance of liquidity in the banking activity. Those institutions have to possess sufficient amount of liquid assets in order to meet their liabilities. However, according to Berger and Bouwman (2009, p. 3780) comprehensive empirical measures of bank liquidity creation are conspicuously absent, making it difficult to address numerous questions of research and policy interest. The abovementioned economists pose such questions: How much liquidity does the banking sector create? How has bank liquidity creation changed over time? How does it vary in the cross section? Which banks create the most and least liquidity? What are the value implications of bank liquidity creation? It is true that corporations do not invest all their resources in profitable, long-term projects. They also invest in less profitable liquid assets that are held on their balance sheets as buffers against shocks (Holmström, Tirole 2000, p. 295). In the opinion of Kashyap et al. (2002, p. 35) without measures of liquidity creation in hand, it is not possible to examine policy-relevant issues, such as the effect of bank capital on bank liquidity creation. Moreover, an institution that offers liquidity on demand must invest in certain costly "overhead" that consists of the large volume of cash and securities that a bank holds as a buffer stock on the asset side of its balance sheet. In the same paper it is also specified that deposits and loan commitments require overhead in the form of liquidasset holdings, and that this overhead is costly. Diamond and Rajan (2012, pp. 553-554) go further in their research and consider the fact of financing illiquid assets with demandable deposits, which exposes banks to damaging runs. According to them competition for funds induces banks to offer deposit contracts that maximize ex ante household utility. However, there is uncertainty about future household endowments. This, coupled with the mismatch between the long gestation period for the projects and the demandable nature of deposits, is the source of banking sector difficulties. A similar question, i.e. how the bank should match its assets and liabilities, was addressed by Song and Thakor (2007, p. 2130). However, the matching here is not the usual one with respect to maturity; rather, it is based on how much value the bank is adding. Except for the literature that directly refers to the problem of liquidity in the banking sector, one can also find theoretical background in certain microeconomic articles on the oligopoly market. It is true that without liquid sources banks are unable to survive, so when liquidity shortage appears, they are willing to give up some of their profits. Interest rates on new term deposits thus have a tendency to rise when crisis times occur. The abovementioned process namely resembles price wars in the oligopoly market. Such issues are present in the works by Friedman (1971, 1973), Green and Porter (1984), as well as Rotemberg and Saloner (1986). Visible economic slowdown began in Poland in Q4 2008 and starting from that time banks in Poland engaged in the deposit war. 3. The Research The main hypothesis of the research is that banks in Poland could temporarily suffer from liquidity shortage during the last financial and economic crisis. That is why they decided to raise their deposit rates in order to gain new liquid sources. Polish banks became aware of possible liquidity shortages in Q4 2008, together with the advent of the financial and economic crisis. Next, the fears came back in 2011, when the sovereign crisis hit the euro area, especially Greece. This situation was new, as the banks had been considered liquid 2 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 enough so far. The hypothesis also states that it is also the institutional actions in Poland that supported banks in terms of liquidity in times of unfavourable macroeconomic conditions. The presented analysis covers last 6 full years, i.e. 2008-2013. When analysing the liquidity position of Polish banks, it is necessary to mention about the changes in the volume of deposits stemming from interest rate fluctuations. Nevertheless, the latter represents a consequence of the decisions of the Monetary Policy Council (MPC) that sets the official interest rates of the National Bank of Poland. The main objective is to keep consumer inflation (CPI) at the level of 2.5% yoy, which is direct inflation targeting. Since 2007 the NBP interest have been changed several times. Starting from Q2 2007 until Q2 2008 the rates were hiked as a consequence of lasting recovery in the domestic economy. During the tightening cycle the main reference rate increased from 4.00% to 6.00%. However, when the financial and economic crisis began, which occurred after a collapse of the Lehman Brother Bank in September 2008, the rates were cut at a high pace. From November 2008 until June the reference rate was lowered by 250 bps, to 3.50%. After the first wave of the crisis, i.e. in H1 2011, the tightening cycle was originated again, and in May 2012 another hike of 25 bps took place. As a consequence, the reference rate reached the level of 4.75%. Starting from November 2012 the easing cycle was observed, and in Q3 2013 the reference rate levelled off at 2.50%, i.e. the historical low. Thus, contrary to the core economies, the rates in Poland have not been cut to the vicinity of zero. After highlighting the tendencies in interest rates, one can more easily describe the changes in deposit volumes in the Polish banks and associate it with bank interest rates fluctuations. The MPC decisions affect changes in interbank interest rates, i.e. WIBOR 3M (Warsaw Interbank Offered Rate). WIBOR for Poland is equivalent to LIBOR USD for the United States or EURIBOR for the euro area. In general the bank deposit rate should be lower than WIBOR1, which represents a “reference” rate at which the bank can borrow funds in the interbank market without any collateral. If the rate set by the bank exceeds WIBOR, then the bank finances its lending activities at a higher cost than the one available in the interbank market. Such a situation may happen when the banking sector lacks liquidity. Banks are then unwilling to make liquid sources available to other credit institutions and badly need new deposits from the non-financial sector (household or corporate ones). Sharp increases in bank deposit rates that do not stem from proportional growths of WIBOR may thus represent a signal of liquidity shortage. For the Polish banking sector a detailed analysis has been carried out in order to describe how the banks reacted to the observed liquidity shortages, and what the outcomes were. The figures 1 and 2 show the values of the bank interest rates on new deposits, together with the NBP reference rate, and the volume of deposits. WIBOR was skipped from the figures, as it usually does not diverge significantly from the NBP reference rate. The figure 1 refers to the household deposits and the figure 2 to non-financial corporate deposits (both in the domestic currency). 3 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Figure 1 Interest rate on new PLN household deposits, NBP reference rate and volume of those deposits in Poland Source: own calculations based on NBP and Polish FSA data. Figure 2 Interest rate on new PLN non-financial corporate deposits, reference rate and volume of those deposits in Poland Source: own calculations based on NBP and Polish FSA data. 4 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 The next step of the analysis is verification of the hypothesis that fluctuations in interest rates on new deposits went together with changes of those deposits’ volumes. The data for the Polish banking sector are available with a monthly frequency. In the statistics of the National Bank of Poland there is a breakdown of interest rates of new domestic currency deposits with respect to their original maturities. In the analysis the following intervals have been included: up to 1 month (1M), over 1 month up to 3 months (1M; 3M>, over 3 months up to 6 months (3M; 6M>, over 6 months up to 1 year (6M; 1Y>, over 1 year (1Y), i.e. long-term deposits. In order to prove it, there has been studied interrelation between interest rates on new term deposits of a certain maturity and the volume of those deposits for the abovementioned sub-categories. Two separate calculations have been made: for deposits from households and non-financial corporations. The correlation coefficients has been computed for the following variables: share of the deposits of a given maturity in total deposits, difference between the interest rate on new deposits of a given maturity and average interest rate on new deposits. The idea beyond using the abovementioned “relative” data instead of the raw ones is that both the volume of deposits and interest rates were fluctuating within the analysis horizon. In particular, the volume of household deposits increased by 125% between the end of 2007 and the end of 2013. For corporate deposits the growth totalled 109% (figure 1 and 2). Hence, using absolute values could lead to misleading conclusions. Bank interest rates also changed at that time, which has already been described. The data on the share of deposits of a given maturity are shown on figures 3 and 4. Figures 5 and 6 present interest rates on new deposits. Figure 3 Breakdown of household PLN term deposits by maturity 5 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Source: own calculations based on Polish FSA data. Figure 4 Breakdown of non-financial corporations PLN term deposits by maturity Source: own calculations based on Polish FSA data. Figure 5 Interest rate on new household PLN deposits by maturity Source: NBP. 6 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Figure 6 Interest rate on new non-financial corporations PLN deposits by maturity Source: NBP. 4. The Findings The data on figures 3 and 4 show that: in case of households banks recorded the highest growths in case of longer-term deposits, i.e. (3M; 6M>, (6M; 1Y> and over 1Y, where the average annual dynamics (for the absolute value of deposits) in the analysed period totalled 20.9%, 19.6%, and 31.2% respectively; the share of those deposits in the total deposits increased as well; at the same time the volume of the deposits with maturity up to 1M slowly declined, in case of non-financial corporations the situation is much different, as it is shorterterm deposits (maturities up to 3M) that are prevalent; however, the share of deposits with maturity of up to 1M declined significantly, and the highest nominal annual dynamics were registered in case of maturities (1M; 3M>, (3M, 6M> and (6M; 1Y>, totalling 15.6%, 30.6% and 18.9% respectively. Contrary to the conclusions above, graphs 5 and 6 do not bring precise outcomes, as interest rates on new deposits were fluctuating sometimes significantly. That is why the correlation analysis is more appropriate here. The results of the computations are presented in table 1. 7 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Table 1 Correlation coefficients: the difference between interest rates on new PLN deposits and the average interest rate on new deposits vs. the share of term PLN deposits by maturities for households and non-financial corporations Maturity Up to 1M (1M; 3M> (3M; 6M> (6M; 1Y> Over 1Y Households Correlation coefficient t-statistic 0,715 8,61*** 0,293 2,58** 0,396 3,63*** -0,089 -0,76 0,248 2,15** Non-financial corporations Correlation coefficient t-statistic 0,704 8,36*** 0,298 2,63** 0,236 2,05** 0,209 1,80* 0,054 0,46 Source: own calculations. The results show vividly that owing to fierce competition on the deposit side, banks managed to accumulate a large portion of new deposits. In 8 out of 10 analysed intervals there was a positive correlation between the share of deposits of a given maturity and the difference between the interest rate on new deposits (of a given maturity) and average interest rate on new deposits. Nevertheless, higher correlation coefficients were in general observed for shorter maturities. Table 2 ROA and NIM indicators. Poland in comparison to other EU countries (excluding Greece and Croatia)2 in 2007-2013 8 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 2007 Austria 0.75 Belgium 0.45 Bulgaria 1.95 Cyprus 1.28 Czech Rep. 1.31 Denmark 0.54 Estonia 1.87 Finland 1.05 France 0.42 Germany 0.19 Hungary 1.20 Ireland 0.58 Italy 0.71 Latvia 1.67 Lithuania 1.35 Luxembourg 0.65 Malta 0.69 Netherlands 0.64 Poland 1.81 Portugal 0.91 Romania 1.80 Slovakia 1.04 Slovenia 0.91 Spain 1.03 Sweden 0.66 UK 0.59 2008 0.09 -1.47 1.98 0.87 1.07 -0.14 1.31 0.46 0.11 -0.29 0.97 0.01 0.34 0.20 0.79 0.04 0.21 -0.37 1.32 0.20 1.72 0.84 0.41 0.68 0.46 -0.37 2009 0.18 -0.11 1.06 0.58 1.41 -0.17 -3.41 0.42 0.23 -0.08 1.67 -1.73 0.31 -3.97 -3.94 0.43 1.85 -0.01 0.75 0.34 0.56 0.54 0.09 0.57 0.24 0.02 ROA 2010 0.46 0.52 0.81 0.58 1.28 0.11 0.40 0.35 0.42 0.07 0.01 -3.09 0.29 -1.66 -0.28 0.50 0.97 0.33 1.00 0.41 0.30 0.94 -0.24 0.47 0.45 0.21 2011 0.10 0.06 0.62 -3.98 1.16 0.03 3.14 0.31 0.27 0.08 -0.90 -0.63 -0.87 0.47 1.51 0.20 0.77 0.25 1.24 -0.21 0.11 1.18 -0.84 -0.03 0.44 0.21 2012 0.31 0.19 0.64 -3.44 1.36 0.10 2.01 0.35 0.17 0.05 -0.44 -0.92 -0.06 0.59 0.95 0.49 1.15 0.19 1.20 -0.26 -0.64 0.95 -1.49 -1.37 0.44 0.10 2013 -0.04 0.39 0.59 -3.42 1.08 0.24 1.77 0.39 0.33 0.06 0.00 -0.88 -0.77 0.91 1.02 0.50 0.72 0.24 1.12 -0.71 0.08 0.96 -7.99 0.36 0.54 0.12 2007 1.67 0.84 3.68 1.88 2.41 1.01 2.47 1.29 0.57 0.80 3.69 0.95 1.68 2.47 2.07 0.51 1.27 1.08 2.80 1.84 3.39 2.40 2.11 1.56 0.96 1.22 2008 1.64 1.02 4.01 1.73 2.59 1.10 2.54 1.19 0.71 0.85 3.00 0.90 1.87 2.60 2.30 0.74 1.18 1.01 2.76 1.86 3.38 2.46 2.19 1.64 0.93 1.13 2009 1.71 1.25 4.00 1.63 2.76 1.43 1.89 0.99 1.18 1.02 4.01 0.86 1.82 1.96 1.58 0.71 1.45 1.13 2.57 1.55 3.78 2.96 2.02 1.96 1.05 0.96 NIM 2010 1.80 1.20 3.96 1.89 2.86 1.23 1.86 0.69 1.23 1.02 4.19 0.69 1.65 1.30 1.51 0.62 1.26 1.22 2.69 1.48 4.16 3.08 2.25 1.79 0.98 0.95 2011 1.75 1.22 3.74 2.45 2.80 1.09 2.83 0.60 1.16 1.04 4.03 0.55 1.64 1.79 1.77 0.64 1.54 1.16 2.74 1.55 3.84 3.25 2.25 1.69 0.90 0.89 2012 1.66 1.30 3.19 2.31 2.58 1.11 2.14 0.52 1.07 1.01 4.21 0.59 1.52 1.74 2.58 0.64 1.77 1.15 2.67 1.35 3.33 3.09 2.08 1.81 1.01 0.85 2013 1.71 1.39 2.97 2.73 2.33 1.15 2.01 0.65 1.12 1.13 4.25 0.68 1.47 1.87 1.56 0.59 1.82 1.29 2.47 1.18 3.20 3.13 1.83 1.81 1.03 0.94 Source: own calculations based on ECB data. Indices description: ROA (return on assets) – net profit divided by total assets. NIM (net interest margin) – net interest income divided by total assets. It is also true that in spite of surges in interest rates, the Polish banking sector was not too badly hit by the economic crisis and liquidity shortage. The table 2 shows vividly that in 2013 Polish banks were characterised by high values of ROA (2nd position after Estonia) and NIM (6th position after Hungary, Romania, Slovakia, Bulgaria and Cyprus) indicators. Only small portion of the profit was thus given up in order to improve the liquidity position. Nevertheless, Poland has so far failed to reach the high pre-crisis values recorded in 2007. It is especially visible in case of ROA indicator, which except for interest income also contains other components. The finding have so far shown that temporary liquidity shortage was filled up with new deposits, which were accumulated owing to higher interest rates. The entire process is thus similar to the one described in theoretical works on price wars in oligopoly markets. The empirical outcomes for Poland are actually in line with the findings of Kashyap et al. (2002) and Diamond and Rajan (2012). But how strongly did the banks lack liquidity and what was the role of institutions in Poland at that time? 9 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 5. Institutional Issues Two institutions in Poland, namely the Polish Financial Supervision Authority (KNF), as well as the National Bank of Poland took a few steps to improve the liquidity position of the Polish banks. First, in the beginning of 2008 the Polish FSA introduced so called liquidity standards with a view to setting minimum requirements regarding liquidity for all banks (commercial and co-operative), as well as branches of credit institutions. The appropriate resolution was implemented in times when certain American and European banks drastically lacked liquidity. For banks located in Poland it was a clear message that the supervisory agency would pay lots of attention to the problem of liquidity and possible shortage here would not be justified with e.g. higher profitability indicators. The resolutions of the Commission for Banking Supervision 3 that was later adopted by the Polish Financial Supervision Authority4 (KNF) introduced 4 liquidity standards: M1, M2, M3 and M4. They are slightly different for banks and branches of credit institutions, and small institutions with assets not exceeding 200 mn PLN (approx. 50 mn EUR) got less stringent requirements. In case of commercial banks the liquidity standards are defined as follows: short-term liquidity gap (M1) – a difference between liquidity reserve (primary and supplementary) and unstable external funds; a minimum value of 0, short-term liquidity factor (M2) – a ratio of liquidity reserve (primary and supplementary) to unstable external funds; a minimum value of 1, coverage ratio of non-liquid assets with own funds (M3) – a ratio of own funds (less the aggregate value of capital requirements for market and delivery settlement risk, and counterparty risk) to non-liquid assets; a minimum value of 1, coverage ratio of non-liquid assets and limited liquidity assets with own funds and stable external funds (M4) – a ratio of the sum of own funds (less the aggregate value of capital requirements for market and delivery settlement risk, and counterparty risk) and stable external funds to the sum of non-liquid assets and limited liquidity assets. The expression “liquidity reserve” i.a. refers to: cash, receivables from the National Bank of Poland or another bank maintaining the reserve requirements (whose payment due date does not exceed 7 days) and selected debt instruments. “Stable external funds” i.a. mean part of the deposit base and own securities not included in own funds, which a bank or a branch of credit institution considers a stable source of funding and sets with caution. Finally, “limited-liquidity assets” represent a sum of part of assets resulting from transactions other than banking operations and part of assets in inconvertible currencies. M1 and M2 standards refer to the short-term liquidity5. It is the ability to fulfil all financial obligations by the due date falling within the period of 30 consecutive days. Thus, if the bank meets both requirements, it should be able to operate in crisis times for 30 days, without any external support. By contrast, M3 and M4 refer to the long-term liquidity, which means monitoring the ability to perform all financial obligations by the due date falling within the period of more than 12 months. Hence, long-term liquidity is associated with the funding of long-term assets, which in case of Poland mostly constitute mortgage loans. A bank or a branch of credit institution should possess sufficient volume of stable liabilities in order to offset substantial outflow of money when granting a mortgage loan. This kind of product is going to be repaid for many years. The figure below presents values of the M2 and M4 requirements. The M3 was skipped as banks keep it much above reference levels6. 10 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Figure 7 M2 and M4 liquidity standards in Poland – average value for banks with assets over 200 bn PLN Source: own calculations based on Polish FSA data. The figure above shows that significant increases in bank interest rates at the turn of 2008/2009, and later on in 2011 resulted in substantial recovery of the short-term liquidity position of the Polish banks. Positive trends were especially visible in the first period, when M2 increased from 1.3 to 1.6. Nevertheless, the situation is much poorer in case of M4, which levelled off at 1.18-1.22. It can be thus stated actions taken by the bank helped to improve the short-term liquidity and the introduction of liquidity requirements provided the banks with a certain benchmark against which they can evaluate themselves. Currently M2 is staying at much higher levels than in 2008. In case of long-term liquidity the situation is not so optimistic and it is providing long-term funding that represents a real challenge for the banks not only in Poland, but across the entire European Union as well. For Poland long-term debt instruments would serve to finance mortgage loans, whose maturity is still much higher than the maturity of instruments that represent funding for them. The volume of assets and liabilities of a given maturity is depicted on figure 8. Figure 8 Assets and Liabilities by maturity (nominal value) – data for the end of 2013 11 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Source: own calculations based on Polish FSA data. It is worth mentioning that the Polish FSA introduced liquidity requirements much before they will be officially implemented across the banking sector in the European Union. Short-term liquidity will be measured by the liquidity coverage ratio (LCR), and long-term liquidity will be monitored by the net stable funding ratio (NSFR). In order to satisfy LCR, banks will have to maintain the appropriate level of high-quality liquid assets (HQLA), which should at least be equal to “net total cash outflows over the next 30 calendar days“. However, LCR will be implemented gradually (BCBS 2013, p. 2). In 2015 banks will be obliged to maintain only 60% of the required value of HQLA. Full implementation is set for 2019. Actually the construction of M2 (i.e. one of the Polish liquidity standards) is similar to LCR In case of long-term liquidity it is still uncertain when NSFR will be binding for banks. The intention of Basel Committee on Banking Supervision is that the requirement becomes implemented by 2018 (BCBS 2014, p. 2). But anyway, owing to the introduction of liquidity standards the problem mentioned by Berger and Bouwman, and earlier by Kashyap, i.e. the lack of liquidity measures, will soon be solved in the EU. Actually in Poland this obstacle has been largely overcome in 2008. It is also the National Bank of Poland (NBP) that was active in the beginning of the financial and economic crisis. Owing to the central bank the commercial banks gained access to Swiss franc funding that served to finance the mortgage portfolio denominated in that currency7. In November 2008 NBP signed an agreement8 with the Swiss National Bank (SNB) on currency swaps. Polish banks thus had an opportunity to exchange the Polish zlotys to the Swiss francs (through the European Central Bank). The agreement was only temporary, and the last swap transaction9 was carried out in January 2010. Moreover, the problem of Swiss franc funding only referred to the limited number of banks. The agreement was, however, renewed in June 2012 in order to protect the Polish banking sector against possible tensions that could occur in the foreign-exchange market. This time a direct agreement was signed between NBP and SNB. NBP also provided the Polish banking sector with repo operations, in order to increase short-term liquidity. 12 Proceedings of 9th Annual London Business Research Conference 4 - 5 August 2014, Imperial College, London, UK, ISBN: 978-1-922069-56-6 Similarly to the swap transactions, repo operations were only needed to selected number of banks that lacked liquidity in the initial phase of the crisis. The actions of NBP and the Polish FSA were thus complementary. 6. Summary and Conclusions The scientific research on the topics that are mentioned in the paper concern the problem of keeping liquidity buffer in banks strong enough. The banking sector should be prepared to give up some of its profitability in order to maintain sufficient amount of liquid sources. Banks in Poland became aware of possible liquidity shortages in Q4 2008, together with the advent of the financial and economic crisis. Next, the fears came back in 2011, when the sovereign crisis hit the euro area. The analysis for Poland reveals that between end 2007 and end 2013 the term deposits highly increased, i.e. by 125% in case of households (especially for the maturities greater than 3M) and by 109% in case of nonfinancial corporations (especially for the maturities above 1M and up to 1Y). The outcomes of the correlation analysis show vividly that changes in deposit volumes went together with bank interest rate fluctuations, and the dependence is strong for the maturities of up to 6M. The banks thus took adequate steps in order to deal with temporary liquidity shortages. However, significant rises in bank interest rates did not lead to substantial declines in profitability of banks in Poland vs. other EU countries. Another factor supporting liquidity in Poland were the actions of the Polish FSA, which introduced liquidity standards in 2008, as well as the operations performed by the National Bank of Poland. Currently it is long-term funding that represents a challenge for banks, not only in Poland. End Notes 1 Actually in case of bank deposits WIBID 3M (Warsaw Interbank Bid Rate) would be more appropriate as a reference rate. However, since bid rates are almost absent in core economies, WIBOR has been used here. 2 Data for Greece have been excluded due to breaks in series. Croatia joined the European Union in July 2013, so the data for previous years were not taken into consideration. 3 Resolution No. 9/2007 of the Commission for Banking Supervision of 13 March 2007 on the establishment of liquidity standards binding for banks. 4 Resolution No. 386/2008 of the Polish Financial Supervision Authority of 17 December 2008 on the establishment of liquidity standards binding for banks. 5 The construction of M1 and M2 is similar. In the first case there is a difference of two aggregates, whereas in the second case there is a quotient. 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