Increased Uncertainty, Credit Supply, and Non-Performing Loans in the Eurozone

This paper examines the role of economic uncertainty in the Eurozone countries by analyzing the credit supply and the evolution of non-performing loans following the 2008 global financial crisis. The discussion centers on how greater economic uncertainty restricts credit supply and increases the number of non-performing loans. Quarterly data for the Eurozone countries are studied for the period 2005 to 2016. To test the aforementioned hypothesis, an index of economic uncertainty for the Eurozone countries is calculated. Panel data analysis is performed using fixed effects estimation. This approach allows for individual heterogeneity, with different intercepts across countries and quarterly time dummies to control for time-specific effects that are common to all countries in the sample. The primary conclusions of the analysis are as follows: (1) When economic uncertainty increases, total gross loans decrease, and the number of non-performing loans increases. (2) When uncertainty increases, loans to deposit-takers, other domestic sectors, and general government decrease, while loans to financial corporations increase as a means of supporting the financial sector. (3) The most vulnerable Eurozone economies play a prominent role in these overall effects. In these economies, the effects of the recent global financial crisis are most pronounced, with uncertainty increasing significantly over the study period.


Introduction
The effects of uncertainty on economic activity vary, but their primary consequence is to shape behaviors and actions that deviate from the framework of rationalization and maximization of wealth and prosperity. Uncertainty also affects the development of modern production models. A sharp increase in uncertainty due to political or economic shocks may have a direct, strong, and enduring impact on the economy (Alexopoulos and Cohen, 2008; consumption in the economy (Alexopoulos and Cohen, 2009;Bernanke, 1983;Romer, 1990) and push employees to seek higher wages, which negatively affects employment, investments, and GDP (Belke and Goecke, 2005;Blackburn and Pelloni, 2005). Bloom (2009) argues that the suspension of investment and employment decisions because of uncertainty may lead to economic recession. Bloom et al. (2011) conclude that uncertainty has had a major impact on the US economy. An increase in political uncertainty between 2006 and 2011 has prompted large, sustained negative effects on economic outcomes in the US. They also conclude that uncertainty has counter-cyclical effects on the industry sector. These effects entail macroeconomic and microeconomic shocks of uncertainty on economic activity. In the UK, Denis and Kannan (2013) found that uncertainty significantly affected economic activity by suppressing industrial production and GDP by 0.6% and 0.3%, respectively. Petrakis et al. (2014) examined the extent to which uncertainty inhibited the effective functioning of the Eurozone economies, especially after the recession of 2008. They concluded that negative events affected economic activity. In particular, negative uncertainty disturbances had substantial effects on the economic activity and production of the manufacturing sector in the peripheral Eurozone countries. Empirical analysis showed that the effects of uncertainty disturbances fell after 5 months for Portugal, 7 months for Spain, 8 months for Germany, 10 months for Greece, and 13 months for Italy.
The impact of uncertainty may also be due to other factors, such as a rise in funding costs (Fernandez-Villaverde et al., 2011;Gilchrist et al., 2010;Veronesi, 2011a, 2011b), an increase in society's uncertainty avoidance (Panousi and Papanikolaou, 2012), and an intensification of the agency problem (DeMarzo and Sannikov, 2006;Narita, 2011).

Economic Crises, Uncertainty, Credit Supply, and Non-Performing Loans
No empirical study has examined the relationships between high uncertainty and changes in credit supply and the number of NPLs. Most studies have linked credit supply to business cycles (Aggelopoulos et al., 2016;Asea and Blomberg, 1998;Calomiris and Mason, 2003;Holmstrom and Tirole, 1997;Keeton, 1999;Lown and Morgan, 2006;Nehls and Schmidt, 2004;Peek and Rosengren, 2000). Studies have focused on the level of financial development in relation to business cycles (Bernanke and Lown, 1991;Borio et al., 2013Borio et al., , 2014Rogoff, 2015) or the effect of changes in macroeconomic aggregates on credit supply (Bayoumi and Melander, 2008;Black and Strahan, 2002;Cappiello et al., 2010;Ciccarelli et al., 2010;De Bondt et al., 2010;Lown and Morgan, 2002;Lown et al., 2000;Swiston, 2008).
Other studies have linked credit supply to financial crises. Economic crises are usually accompanied by reductions in bank lending (Cornett et al., 2011;Del Prete et al., 2017;Dihn et al., 2013). For example, in the recent global financial crisis, banks not only reduced credit to domestic (Cetorelli and Goldberg, 2012;Ivashina and Scharfstein, 2009) and international borrowers (Herrmann and Mihaljek, 2010;Popov and Udell, 2012;Takats, 2010), but also set stricter credit standards (Asea and Blomberg, 1998;Ivashina and Scharfstein, 2009) and tightened credit control and the monitoring of their portfolios (De Haas and Van Horen, 2009).
During the period before the recent global financial crisis, there was a significant increase in credit supply (Baron and Xiong, 2017;Demirguc-Kunt and Detragiache, 2002;English and Reid, 1994;Kaminsky et al., 1998;Kaminsky and Reinhart, 1999;Lopez-Salido et al., 2016;Schularick and Taylor, 2012;Weinberg, 1995). In general, there was also broader growth in financial markets, mainly because of new technologies in the financial sector (Panopoulou, 2005;Rinaldi and Sanchis-Arellano, 2006).
However, this increase in credit supply during periods of economic growth usually leads to problems in the financial sector because credit is supplied without due care. Therefore, credit supply to individuals and legal entities with weak creditworthiness tends to increase (Greenwood and Hanson, 2013;Keeton, 1999). The credit expansion of economies is usually guided by overoptimism about the future of the financial system (Kindleberger, 1978;Minsky, 1977). Long periods of economic prosperity tend to increase this overoptimism. This fuels credit expansion, which may destabilize the financial system and the economy (Baron and Xiong, 2017), leading to banking crises, housing crises, and economic recessions (Borio and Lowe, 2002;Lopez-Salido et al., 2016;Mian and Sufi, 2009;Schularick and Taylor, 2012). When the financial system becomes threatened by credit risk, which is due to the credit expansion that leads to financial crisis and recession, the economy reacts by adopting tighter credit standards and imposing stricter credit controls (Ivashina and Scharfstein, 2009;Takats and Upper, 2013). Credit supply therefore falls, and credit demand drops as individuals and firms seek to reduce rather than increase their debt when revenues are limited (Ashcraft and Campello, 2007;Chatelain et al., 2003;Gertler and Gilchrist, 1994). Credit supply changes substantially after a financial crisis (Blalock et al., 2005;Desai et al., 2004;Eichengreen et al., 2001;Tomz and Wright, 2005).
An increase in the number of NPLs is a direct, inevitable consequence of financial crises . At the time of the recent global financial crisis, individuals and firms in most European countries had debts that they could not repay (Aiyar et al., 2015a(Aiyar et al., , 2015b. Accordingly, the number of NPLs increased because of both the broader macroeconomic scenario and the prevailing conditions in banking institutions. Numerous studies have linked the emergence of NPLs to economic growth (Beck et al., 2013(Beck et al., , 2015Fofack, 2005;Jimenez and Saurina, 2006;Khemraj and Pasha, 2009;Salas and Saurina, 2002;Skarica, 2014;Ozili, 2015). This link is because the positive GDP growth rate usually entails greater income, which improves the debtors' ability to repay debts, so the number of NPLs decreases. Conversely, when the economy is in decline (shrinking or negative GDP growth), the level of bad debt rises (Borio et al., 2001).
Factors that relate to the banking system itself are also responsible for the evolution of NPLs. One such factor is capital adequacy, as measured by the equity-to-assets ratio (Klein, 2013). Banks with low capital adequacy are motivated to provide credit at higher risk, which increases the probability of NPLs, whereas high capital adequacy and tight credit control reduce the number of NPLs (Boudriga et al., 2009). Other factors include maturity, credit costs, the size of banks (Rajan and Dhal, 2003), and financial development in general. Loans in foreign currency and exchange rates play a role as well (Tanasković and Jandrić, 2015).
The emergence of NPLs also affects macroeconomic performance. Studies have shown that a high number of NPLs reduces credit as a percentage of GDP, slows down economic growth, increases unemployment (Aiyar et al., 2015a;Aiyar et al., 2015b;Espinoza and Prasad, 2010;Klein, 2013;Nkusu, 2011), and undermines trust in the market (Cucinelli, 2015;Jorda et al., 2013;Kwan and Eisenbeis, 1995;Rosengren, 2000, 2005). In addition, a high number of NPLs burdens bank balances and hinders bank profitability because capital requirements restrict the creation of new credit. The problem is that having a high number of NPLs occupies bank capital that could otherwise be used to increase borrowing. A high number of NPLs thus negatively affects credit supply.

Method and Data
To explore the relationships between uncertainty and credit supply and between uncertainty and the number of NPLs, we used an unbalanced panel of quarterly data for 19 Eurozone countries (see Table A1 in Appendix A) for the period 2005 to 2016. The study period was chosen because of the availability of data on credit supply and NPLs from the IMF financial soundness indicators (FSIs) database. To examine the effects of economic uncertainty on credit supply and NPLs, we employed the following baseline estimation equation: where i denotes the Eurozone country (N max = 19) and t the quarter (t max = 48). The dependent variable, Y, is a vector of variables that represent the loan supply and NPLs; α i is a set of country-specific fixed effects that capture the influence of unobserved country-specific time-invariant heterogeneity; UI is an economic uncertainty index; and λ t is a set of time dummies that control for quarter-specific effects that are common to all countries. The analysis was based on fixed effects estimation, which allows for individual heterogeneity. Thus, different intercepts were used across countries, and estimation was performed using ordinary least squares. As mentioned earlier, we included quarterly time dummies to account for time-specific effects that were common to all countries in the sample. We employed a cluster-robust approach for standard errors to control for within-cluster correlation and heteroskedasticity.
To construct the economic uncertainty index, daily data for national stock market high capitalization indexes were used for the countries in this study. Following Petrakis et al. (2014), daily data for each index were converted to monthly data. Then, as a proxy for global uncertainty, a global stock market index was calculated that was based on the daily prices of the world's major stock markets (US, Canada, Mexico, Brazil, Eurozone, UK, Japan, China-Hong Kong, and India) as a weighted average of each country's annual GDP at current prices. The source for the GDP data was the IMF World Economic Outlook Database April 2017. Table A2 (see Appendix A) presents the indexes that were used for each country, as well as major world stock indexes that were used to construct a global stock market index. All stock index data were obtained from the Reuters Datastream.
An overall uncertainty indicator was created for each country by computing a rolling-window 30-day standard deviation of the main stock index returns. To isolate country-specific shocks, the monthly average of this uncertainty index (UI ) was regressed on its global counterpart and the residuals were labeled as a country-specific UI. These monthly data were then transformed to quarterly data. The quarterly pattern of these indicators shows the quarterly economic UI evolution from 2005 to 2016. Table 1 presents descriptive statistics for the stock market indexes that were used in the analysis.
The dataset for credit supply and NPLs was based on the IMF Financial Soundness Indicators (FSIs). 1 The country sample and the study period were determined by the availability of these data. The variables were total gross loans, supply of loans to residents and non-residents, NPLs as a percentage of total gross loans, and NPLs net of provisions to capital. 2 The supply of loans to residents was separated into loans to deposit-takers, financial corporations, non-financial corporations, other domestic sectors, the central bank, and the general government. The data for NPLs as a percentage of total gross loans were taken from the World Bank for Germany and from TheGlobalEconomy.com for Finland. Data availability differed by country. Data availability is summarized in Table A3 (see Appendix A). Table 2 provides descriptive statistics for the variables, considered as panel data.
To examine the specific effects of economic uncertainty on loan supply and NPLs by country, the following estimation equation was employed. This equation is the same as Equation (1), but not in panel form. Equation (2) was estimated separately for each country using simple ordinary least squares: where t denotes the quarter (t max = 48). The dependent variable, Y, is a vector of variables that represent loan supply and NPLs for each country, and UI is an economic uncertainty index for each country. Equation (2) was analyzed by employing ordinary least squares time series regression.
1 The data for NPLs net of provisions to capital were taken from the World Bank for Germany and from TheGlobalEconomy.com for Finland. 2 This variable was calculated by taking the value of NPLs less the value of specific loan provisions as the numerator and capital as the denominator. Capital was measured as total capital and reserves on the sector balance sheet.  Figure 1 presents the economic uncertainty index for each country in the study. The plot is indicative of the rise of uncertainty following the recent global financial recession. The black line reflects the evolution of the uncertainty index for all Eurozone countries as the weighted average of individual countries based on their GDP. This line shows that in the years before the crisis, uncertainty was low for the whole Eurozone, but this situation was reversed from 2009 onward. The quarterly pattern of uncertainty shows the evolution of economic uncertainty since 2005. There were sharp, country-specific uncertainty shocks around the dates of major political and economic turbulence. Since the onset of the crisis, most Eurozone economies have been hit by a series of uncertainty shocks.

Empirical Results and Discussion
The next phase of our analysis was to examine the effects of uncertainty on credit supply and the number of NPLs. Table 3 provides evideshance of these effects. The data in Table 3 are based on alternative specifications of Equation (1) for the panel of the 19 Eurozone countries between 2005 and 2016 using fixed effects and cluster-robust standard errors. Table 3 shows the impact of uncertainty on credit supply and the evolution of NPLs. Regressions show that uncertainty was significantly and negatively linked to total gross loans, loans to residents, and loans to non-residents and positively and significantly linked to evolution in NPLs as a percentage of total loans and evolution in NPLs net of provisions of capital. Regarding loans to residents, there was a negative and significant relationship between uncertainty and loans to deposit-takers and loans to other domestic sectors, and a positive relationship between uncertainty and loans to financial corporations. Notes: t-statistics in parentheses. *, **, and *** denote significance at the 10%, 5%, and 1% significance levels, respectively. All estimates were carried out using the fixed effects method allowing for country and quarter-specific effects and using cluster-robust standard errors.
Next, to illustrate the effect of uncertainty on credit supply and the evolution of NPLs by country, Table 4 shows the correlations between the economic uncertainty index and the country-dependent variables.
The correlation matrix provides several significant indications of the effect of uncertainty on credit supply and the evolution of NPLs by country. For most countries, there were strong negative or positive correlations with uncertainty. This result holds for all variables, with the exception of loans to the central bank (significant negative correlation for Greece) and loans to general government (negative correlation for Estonia and positive correlation for Ireland and Spain). Separate estimates of Equation (2) illustrate how uncertainty affected each country (Tables A4-A22 in Appendix A).
Estimation of Equation (2) for Austria (Table A4 in Appendix A) revealed no significant impact of uncertainty on credit supply or the evolution of NPLs. Data for Austria spanned the period from Q1 2010 to Q4 2016 (Table A3 in Appendix A). During this period, the uncertainty index followed a marginally downward trend, as did credit supply. However, these small changes did not lead to statistically significant results, despite the upward trend of NPLs from 2010 onward, a substantial increase in 2014, and a decline from 2015 onward. Austria is one country in which economic uncertainty did not increase during the recent global financial crisis; it actually decreased slightly. For Belgium (Table A5 in Appendix A), there was a significant negative relationship between uncertainty and total gross loans, loans to deposit-takers, and loans to non-residents, and a significant positive relationship between uncertainty and loans to financial corporations, loans to other domestic sectors, and the two NPL variables. The data for Belgium spanned the period from Q4 2006 to Q3 2016 (Table A3 in  For Cyprus (Table A6 in Appendix A), there was a significant negative relationship between uncertainty and loans to non-residents and a significant positive relationship between uncertainty and loans to residents, loans to financial and non-financial corporations, loans to other domestic sectors, and both NPL variables. The data for Cyprus spanned the period from Q4 2008 to Q1 2016 (Table A3 in Appendix A). The relationships resulting from estimation of Equation (2)  For Estonia (Table A7 in Appendix A), there was a significant negative relationship between uncertainty and total gross loans, loans to residents, loans to financial and non-financial corporations, loans to other domestic sectors, loans to general government, loans to non-residents, and NPLs net of provisions to capital. The data for Estonia spanned the period from Q4 2008 to Q4 2016 (Table A3 in Appendix A). During this period, uncertainty increased significantly. These findings are explained by a significant decrease in all types of credit supply from 2011 onward, a substantial increase in NPLs between 2008 and 2010, and a substantial decrease in NPLs from 2011 onward.
For Finland (Table A8 in Appendix A), there was a significant negative relationship between uncertainty and loans to deposit-takers and a significant positive relationship between uncertainty and loans to financial corporations and between uncertainty and loans to non-residents. Data for Finland spanned the period from Q1 2005 to Q3 2016. During this period, credit supply increased steadily. Uncertainty declined between 2005 and 2008, increased between 2009 and 2013, and declined from 2014 onward. NPLs fell to low levels (less than 1% of total loans) but increased substantially between 2007 and 2009 and between 2014 and 2016.
As in the case of Austria, for France (Table A9 in Appendix A), there was no significant impact of uncertainty on credit supply or on the evolution of NPLs. The main problem with France was the availability of data on credit supply. Total gross loans data spanned the period from Q2 2010 to Q4 2013, data on total loan breakdowns spanned the period from Q2 2010 to Q2 2012, and data on NPLs spanned the period from Q2 2010 to Q4 2016 (Table A3 in  Estimation of Equation (2) for Germany (Table A10 in Appendix A) revealed a significant negative effect of uncertainty on loans to non-residents. Data for Germany spanned the period from Q4 2008 to Q4 2016 (Table A3 in Appendix A). During this period, the uncertainty index followed a marginally downward trend between 2009 and 2015 but then rose in 2016. Credit supply continued to rise between Q4 2010 and Q3 2012, and remained stable thereafter. NPLs were consistently low (2%-4% of total loans). Germany is another country where economic uncertainty fell during the recent global financial crisis.
For Greece (Table A11 in Appendix A), there was a significant negative relationship between uncertainty and total gross loans, loans to deposit-takers, loans to central bank, and loans to non-residents. There was a significant positive relationship between uncertainty and loans to financial corporations, loans to other domestic sectors, and the two NPL variables. Data for the Greek economy spanned the period from Q3 2008 to Q4 2016. During this period, uncertainty rose steadily. Credit supply rose until Q2 2010, but after the first economic adjustment program was signed in May 2010, lending declined steadily until Q4 2016. Efforts to support the domestic economy through fiscal adjustment programs were obvious because, despite the increase in uncertainty, loans to non-financial corporations and other domestic sectors increased. NPLs increased substantially from 2008 onward. This observation explains their positive relationship with uncertainty.
Estimation of Equation (2) for Ireland (Table A12 in Appendix A) revealed a significant positive relationship between uncertainty and all dependent variables except loans to central bank and NPLs to total gross loans. These positive relationships are explained by the data availability for Ireland. These data spanned the period from Q1 2010 to Q3 2016 (Table A3 in Appendix A). During this period, Ireland made a major recovery effort, especially after 2013. Although the situation in the banking sector has not been fully restored (there was a decline in loans throughout the study period), uncertainty fell following Ireland's successful exit from the adjustment program by the end of 2013 and during the subsequent positive climate. NPLs increased substantially while the economic adjustment programs were in force (2010-2013), but fell considerably between 2014 and 2016.
For Italy (Table A13 in Appendix A), there was a significant negative relationship between uncertainty and loans to deposit-takers, and a significant positive relationship between uncertainty and loans to residents and loans to other domestic sectors. The data for Italy spanned the period from Q4 2005 to Q2 2007 and from Q2 2008 to Q2 2016 (Table A3 in Appendix A). During this period, credit supply was relatively steady, with a small increase until 2010 and a small decrease from 2011 to 2015. Uncertainty had increased significantly by 2013, and it decreased slightly from 2014 to 2016. NPLs in Italy increased substantially from 2008 onward. This observation explains their positive relationship with uncertainty.
Estimation of Equation (2) for the economy of Latvia (Table A14 in Appendix A) revealed a significant positive relationship between uncertainty and total gross loans. The data spanned the period from Q1 2011 to Q4 2016. During this period, uncertainty and credit supply declined. The year 2011 marked a return to high growth rates after three years of recession. Accordingly, uncertainty and NPLs fell from 2011 onward.
For Lithuania, there was a significant negative relationship between uncertainty and total gross loans, loans to residents, loans to financial and non-financial corporations, and loans to other domestic sectors. Data for Lithuania spanned the period from Q4 2008 to Q3 2016 (Table A3 in Appendix A). Uncertainty increased substantially until Q1 2013 and then declined, while credit supply declined until Q1 2015 and rose thereafter. NPLs increased substantially in 2009 and 2010 and declined sharply from 2011 onward. NPLs did not share a significant relationship with uncertainty.
For Luxembourg (Table A16 in Appendix A), there was a significant negative relationship between uncertainty and total gross loans, loans to residents, and the two NPL variables. The data for Luxembourg spanned the period from Q1 2009 to Q4 2016 (Table A3 in Appendix A). During this period, uncertainty did not change substantially, although it increased between 2009 and 2012 and declined between 2013 and 2016. Credit supply evolved in the opposite way over the same period. A negative relationship between NPLs and uncertainty was observed. This finding is attributable to the study period. Data on NPLs spanned the period from 2009 to 2013-a period in which Luxembourg managed to reduce NPLs substantially, despite an increase in uncertainty between 2009 and 2012.
Malta is another country whose economy was not significantly affected by the recent global financial crisis. Estimation of Equation (2) for Malta (Table A17 in Appendix A) revealed a significant positive relationship between uncertainty and total gross loans, loans to residents, loans to financial and non-financial corporations, loans to other domestic sectors, loans to central banks, loans to non-residents, and NPLs net of provisions to capital. Data for Malta spanned the whole study period (2005 to 2016) ( Table A3 in Appendix A). During this period in Malta, the credit supply to the economy steadily increased, while uncertainty increased until 2011 and then remained stable. Despite fluctuations, the number of NPLs remained low during this period. NPLs accounted for 12.0% of total loans in 2005, 5.0% in 2008, 9.5% in 2014, and 5.7% in 2016.
For the Netherlands (Table A18 in Appendix A), there was a significant negative relationship between uncertainty and loans to deposit-takers and between uncertainty and loans to non-residents. There was also a significant positive relationship between uncertainty and loans to non-financial corporations, loans to central banks, and the two NPL variables. Data for the Netherlands spanned the period from Q1 2008 to Q4 2016 (Table A3 in Appendix A). Uncertainty increased substantially until 2012 and then began to decline. Meanwhile, credit supply declined until 2010 and increased from 2011 onward and between 2014 and 2016. NPLs increased substantially between 2008 and Q1 2010 and continued to grow more slowly until 2014. In 2015, NPLs began to decline.
Estimation of Equation (2) for Portugal (Table A19 in Appendix A) revealed no significant effect of uncertainty on credit supply or the evolution of NPLs. The data for Portugal were annual between 2005 and 2007 and quarterly from Q4 2008 to Q3 2016 (Table A3 in Appendix A). During this period, uncertainty in the Portuguese economy increased steadily, while credit supply declined from 2010 onward. NPLs during this period increased substantially.
As with Portugal, for Slovakia (Table A20 in Appendix A), there was no significant effect of uncertainty on credit supply or the evolution of NPLs. Data for Slovakia spanned the period from Q1 2011 to Q4 2016 (Table A3 in Appendix A). During this period, uncertainty in the Slovak economy was relatively low, while credit supply increased in 2011 and then remained relatively stable. NPLs decreased marginally from 2011 onward.
Slovenia is another country whose economy was not significantly affected by the recent global financial crisis. Estimation of Equation (2) for the Slovenian economy (Table A21 in Appendix A) revealed a significant positive relationship between uncertainty and total gross loans, loans to residents, loans to deposit-takers, loans to financial and non-financial corporations, loans to other domestic sectors, and loans to non-residents. Data for Slovenia spanned the period from Q4 2010 to Q4 2016. During this period, uncertainty fell. Credit supply declined from 2012 onward. NPLs in Slovenia increased substantially from 2010 to 2013, and declined from 2014 onward.
Finally, estimation of Equation (2) for Spain revealed a significant negative relationship between uncertainty and loans to other domestic sectors and a significant positive relationship between uncertainty and loans to general government, loans to other domestic sectors, and the two NPL variables. Data for Spain spanned the period from Q4 2005 to Q4 2016 (Table A3 in

Conclusions
Using quarterly data that spanned the period from Q1 2005 to Q4 2016 for the Eurozone economies, the empirical analysis shows strong links between uncertainty and credit supply and between uncertainty and the evolution of NPLs. In particular, when uncertainty in the economy increases, total gross loans (to residents and non-residents) decrease. Conversely, the number of NPLs increases. The opposite relationships occurs when uncertainty decreases. Regarding loans to residents, loans to deposit-takers decrease with increasing uncertainty, as do loans to other domestic sectors and loans to the general government. In contrast, loans to financial corporations share a positive relationship with an increase in uncertainty, highlighting efforts to support the financial sector during periods of high uncertainty.
Regarding the effect of uncertainty on country-by-country credit supply, the analysis shows that countries that experienced the most pronounced effects of the crisis (i.e., Estonia, Finland, Greece, Italy, Portugal, and Spain), along with Belgium, Lithuania, Luxembourg, and the Netherlands, reduced credit supply when uncertainty rose and increased credit supply when uncertainty fell. Other countries (i.e., Cyprus, Ireland, Latvia, Malta, and Slovenia) increased credit supply when uncertainty rose and reduced credit supply when uncertainty fell. This finding implies that these countries use lending as a tool to tackle uncertainty. When uncertainty declines, they cease to use this tool. Finally, for the economies of Austria, Germany, France, and Slovakia, the level of uncertainty either remained stable or declined during the recent crisis. Thus, for these countries, there was no significant relationship with credit supply.
Country-by-country examination of the effect of uncertainty on the evolution of NPLs showed that in Belgium, Cyprus, Greece, Ireland, Italy, Lithuania, Malta, the Netherlands, and Spain, a rise in uncertainty was accompanied by a rise in the number of NPLs. Likewise, a decline in uncertainty was accompanied by a decline in the number of NPLs. In Estonia and Luxembourg, when uncertainty increased, the number of NPLs decreased, and when uncertainty decreased, the number of NPLs increased. Finally, in Austria, Finland, France, Germany, Latvia, Slovakia, and Slovenia, uncertainty generally declined during the recent crisis and had no effect on the evolution of NPLs.
The empirical results lead to several important conclusions. These conclusions are relevant not only to policymakers and governments of the Eurozone economies, but also to any organization or individual with an interest in the effects of uncertainty on economies and economic outcomes. For governments to reduce uncertainty in their economies, they need to scrutinize the directions they follow in the future. Policymakers should avoid hasty decisions during crises. Instead, they should focus on building the resilience of households, communities, businesses, the financial system, and the economy as a whole. They must build appropriate economic institutions that can reduce uncertainty and increase confidence. In addition, macroeconomic government policy plays a unique, key role in managing risk and uncertainty at the national level. Macroeconomic policies contribute to the management of external sector or systemic domestic factors. A stable external environment and a strong macroeconomic policy framework not only explain low uncertainty in an economy, but also reduce the likelihood of a recession. Finally, if businesses and households do not invest, governments may need to stimulate the economy by investing themselves.
The first limitation of this study refers to the availability of credit supply data. Poor data availability for certain countries in certain years meant that the study period varied for different economies. The IMF's financial soundness indicators provided insufficient data for all Eurozone countries. Data for some countries were available only for some quarters, while for other countries, data were available for the whole study period.