Do credit supply and unemployment risk matter for household saving? Evidence from Poland
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Kłopocka, Aneta Maria; Wilczyński, Ryszard Article Do credit supply and unemployment risk matter for household saving? Evidence from Poland Contemporary Economics Provided in Cooperation with: VIZJA University, Warsaw Suggested Citation: Kłopocka, Aneta Maria; Wilczyński, Ryszard (2021) : Do credit supply and unemployment risk matter for household saving? Evidence from Poland, Contemporary Economics, ISSN 2300-8814, University of Economics and Human Sciences in Warsaw, Warsaw, Vol. 15, Iss. 4, pp. 375-392, https://doi.org/10.5709/ce.1897-9254.455 This Version is available at: https://hdl.handle.net/10419/297578 Standard-Nutzungsbedingungen: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in EconStor may be saved and copied for your personal and scholarly purposes. You are not to copy documents for public or commercial purposes, to exhibit the documents publicly, to make them publicly available on the internet, or to distribute or otherwise use the documents in public. If the documents have been made available under an Open Content Licence (especially Creative Commons Licences), you may exercise further usage rights as specified in the indicated licence. https://creativecommons.org/licenses/by/4.0/
www.ce.vizja.pl 375 This work is licensed under a Creative Commons Attribution 4.0 International License. This paper contributes to the literature on the effects of uncertainty on household saving – a long-standing and extensively explored topic yet leaving a number of issues inconclusive. It concentrates on the labor income uncertainty by addressing saving against unemployment risk in terms of changes in credit supply and households’ financial wealth. Time series analysis uses dataset of quarterly observations from 2003 Q4 to 2019 Q3 for Poland. It provides empirical evidence of the negative relationship of changes in households’ financial wealth and credit availability with the household propensity to save, in line with the buffer saving model. Furthermore, it contributes to the discussion on the choice of uncertainty measures referring to the labor market with a recommendation to employ the subjective (perceived) unemployment expectation index rather than the objective unemployment rate. These results are meaningful for policy implications. They emphasize the role of credit availability for household consumption/saving decisions. In case of expansionary monetary policy and making credit easier to acquire for households, all other things equal, a negative effect on the household saving rate may be expected. This poses a question about the risk of households’ overreliance on credit and therefore about their financial stability in emergency situations. 1. Introduction1. Introduction The development of household saving is an issue of great interest to forecasters, policymakers, financial markets, and the business community. An impressive body of theoretical and empirical literature elaborates on the determinants of household saving. The core theoretical considerations on consumption and saving include the permanent income hypothesis, the life-cycle hypothesis, and the Ricardian equivalence hypothesis. A significant fraction of the literature addresses the effect of uncertainty on households saving behavior. The precautionary motive (to build up a reserve against unforeseen contingencies) is fundamental for the buffer-stock saving model (Carroll, 1997; Deaton, 1991). According to the model, there is a target level of wealth. Forwardlooking, risk-averse consumers increase their saving when actual wealth, relative to income, is below the optimal target wealth to income. When wealth is above the target level, they increase consumption. Lugilde et al. (2019) provide a comprehensive review of the empirical literature on precautionary saving. Their main finding is that the empirical results are not conclusive, and that “there is neither consensus on the intensity of that motive for saving, nor on the most appropriate measure of uncertainty” (Lugilde et al., 2019, p. 481). Many empirical studies investigating buffer-stock saving are performed for the United States or other developed economies. Studies of former socialist economies in Central and Eastern Europe (CEE) are sparse. Our aim in this paper is to provide an empirical evaluation of household saving against unemployment risk in terms of changes in Do Credit Supply and Unemployment Risk Matter for Household Saving? Evidence from Poland ABSTRACT E21, E24, G51. KEY WORDS: JEL Classification: Credit, household saving, unemployment risk, uncertainty, Poland. University of Economics and Human Sciences in Warsaw, Poland Correspondence concerning this article should be addressed to: Aneta Maria Kłopocka, University of Economics and Human Sciences in Warsaw, Poland ul. Okopowa 59, 01-043 Warsaw, Poland. E-mail:a.k[email protected] Aneta Maria Kłopocka and Ryszard Wilczyński Primary submission: 30.09.2020 | Final acceptance: 17.11.2021
376 Aneta Maria Kłopocka, Ryszard Wilczyński 10.5709/ce.1897-9254.455DOI: CONTEMPORARY ECONOMICS Vol. 15 Issue 4 375-3922021 credit supply and households’ financial wealth in Poland. We test the hypothesis that increases in the financial wealth scaled to income and improvements in the credit availability decrease household saving propensity, while increments in perceived unemployment risk positively affect saving propensity. Furthermore, we contribute to the dispute on the choice of uncertainty measures related to the labor market. To deliver insights on household saving in Poland – one of the CEE countries with a socialist history – is of great importance. Firstly, household perception of saving motives as well as saving habits may be different in a post-transition and post-communist country than in the developed economies. Moreover, cross-cultural differences may be manifested in diverse patterns of financial decision-making and investment behavior across countries and regions (Czerwonka, 2019; Harasim, 2012). Secondly, the CEE countries have had, at the same time, both relatively low and fluctuating saving rates and also a volatile macroeconomic environment with large fluctuations in growth rates, unemployment and inflation rates (Kukk & Staehr, 2017). Thirdly, household saving determines, to a considerable extent, the economic outlook of national economies and the financial sustainability of individuals and families (Odoardi & Pagliari, 2020). Thus, it may contribute to the convergence of Poland towards the more advanced economies in the macroand microeconomic perspective. In this context, the research on determinants of Polish household saving behavior is particularly appropriate. The rest of the paper is organized as follows. Section 2 provides a brief review of relevant literature. Section 3 describes the data and the methodology of the research. Section 4 presents and discusses the empirical findings of regression analysis. Section 5 concludes with some remarks. 2. Literature Review2. Literature Review Household consumption/saving decisions are central to the functioning of the economy. Household saving is defined as the difference between household disposable income (mainly wages received, revenue of the self-employed, and net property income) and consumption (expenditure on goods and services). In other words, saving represents the part of household disposable income which is not spent for consumption. Household saving rate (household saving divided by disposable income) is a widely used measure of household propensity to save. It refers to the flow of saving in a given period. The process of savings accumulation results in the stock of household wealth. Both theoretical and empirical literature on consumption/saving decisions (including saving motives and factors affecting saving) as well as the allocation of savings across different assets is extensive and emerging (Fereidouni & Tajaddini, 2017; Gomes et al., 2021; Grigoli et al., 2018; Rybaczewska et al., 2020; Thimme, 2016). The neoclassical view implying rationality and optimality of household decisions is supplemented with a bounded rationality theory according to which consumers faced with complex choices make suboptimal decisions due to cognitive limitations, imperfect information and time constraints (Simon, 1955). A considerable part of the literature addresses the effect of uncertainty on households saving behavior. This is a long-standing topic in research on household saving (Skinner 1988; Dynan 1993). In the seminal works of Carroll (1997) and Deaton (1991) assets play the role of a buffer-stock, and a consumer saves and dissaves in order to smooth consumption in the face of income uncertainty. The precautionary motive (to build up a reserve against unforeseen contingencies) has assumed an important place in the literature on household saving (e.g., Hubbard et al. 1994; Bertaut & Haliassos 1997; Carroll & Samwick 1997; Lusardi 1998; Cagetti 2003; Lee & Sawada 2007; Gunning 2010; Mishra et al. 2012; Ceritoğlu 2013; Chamon et al. 2013; Deidda 2014; Limosani & Millemaci 2014; Mastrogiacomo & Alessie 2014; Aizenman et al. 2015; Fulford 2015; Kłopocka 2018a; Vinokurov et al. 2018). A fresh interest in precautionary saving has become apparent over the last years in the context of amplified financial, economic, and political uncertainty. Some authors have tested the precaution as a potential explanation of the sharp increment in household saving rates during the Great Recession. For example, the estimates of Mody et al. (2012) for a panel of advanced economies imply that at least two-fifths of the sharp increase in household saving rates between 2007 and 2009 can be attributed to the precautionary
www.ce.vizja.pl 377 Do Credit Supply and Unemployment Risk Matter for Household Saving? Evidence from Poland This work is licensed under a Creative Commons Attribution 4.0 International License. savings motive. Bouyon (2016) provides an analysis of panel data for 13 European countries of the period 2007-2013. He finds evidence of the strong impact of unemployment rates and housing prices upon household saving rate and thus confirms the prominent role played by the precautionary motive during the financial crisis of 2008-2009. Bande and Riveiro (2013), using Spanish regional data for the period 1980-2007, reveal that part of the increase in saving rates is related to precautionary motive and that increased uncertainty causes greater savings rates. Carroll et al. (2019) argue that the long stability of the U.S. personal saving rate from the 1960s through the early 1980s, subsequent steady decline from the 1980s to 2007, and substantial increase in 2008-2011 can all be interpreted using a parsimonious bufferstock model of optimal consumption in the presence of labour income uncertainty and credit constraints. Their model's key insight is that, in the presence of income uncertainty, optimizing households have a target wealth ratio that depends on the usual theoretical considerations (risk aversion, time preference, expected income growth, etc.) as well as the degree of labour income uncertainty and the availability of credit. Their model's estimated coefficients imply that a substantial contribution to the decline in consumption during the Great Recession was due to the increase in precautionary saving. The perceived labor income risk is measured by the households' unemployment expectations using the Thomson Reuters/ University of Michigan's Surveys of Consumers. The households' unemployment expectations are assumed to be a better proxy of labor income risk than the unemployment rate. Broadway and Haisken-DeNew (2019), using household-level panel data, distinguish between real income uncertainty the household is actually exposed to, and perceived income uncertainty. They find that the latter substantially increases precautionary savings beyond the effect of real income uncertainty. Carroll (1992) and Carroll et al. (2012) show the dynamics of the saving rate adjustment to a permanent increase in uncertainty. In response to a permanent worsening in economic circumstances, consumption initially overshoots its ultimate permanent adjustment. This reflects the fact that, when the target level of wealth rises, not only is a higher level of steady-state saving needed to maintain a higher target level of wealth, an immediate further boost to saving is necessary to move from the current (inadequate) level of wealth up to the new (higher) target. It means that an immediate jump in the saving rate is followed by a gradual decline toward a new equilibrium rate that is higher than the original one. The above-mentioned studies are only some examples of influential papers in the subject. As the literature on precautionary saving is very rich, it deserved several review articles. The most recent reviews are those of Baiardi et al. (2020) and Lugilde et al. (2019). Baiardi et al. (2020) provide an overview of the latest developments in precautionary saving theory. They demonstrate that labour income risk is the main source of uncertainty in saving choice, and the starting point for the vast precautionary literature ignited with the seminal papers by Leland (1968), Sandmo (1970) and Dreze & Modigliani (1972). Over time, the simple framework examined in early studies has become more complex. They review theory with interest rate uncertainty, high-order risk changes, uncertainty in non-financial variables, and other significant developments. Lugilde et al. (2019) provide a comprehensive review of the empirical literature discussing the main controversial issues and the different approaches followed by the studies addressing empirically the test of precautionary saving. They overview alternative dependent variables in the econometric exercises: the consumption level (or consumption growth), savings (level, growth, or the saving rate) or even wealth or its accumulation as well as different measures of the uncertainty: the income variability, the variability of GDP, the variability of consumption or expenditure, variables related to the labor market (mainly the unemployment rate). They emphasize that the question of how to measure uncertainty is still the most important unresolved issue. Based on the above literature on precautionary saving, we formulate the hypothesis that increases in the financial wealth scaled to income and improvements in the credit availability decrease household saving propensity, while increments in perceived unemployment risk positively affect saving propensity. We test the hypothesis in un underexplored setting of particular interest. Most studies investigating household saving at the macroeconomic level focus on developed
378 Aneta Maria Kłopocka, Ryszard Wilczyński 10.5709/ce.1897-9254.455DOI: CONTEMPORARY ECONOMICS Vol. 15 Issue 4 375-3922021 economies. Studies of former socialist economies in Central and Eastern Europe (CEE) are insufficient. Moving this field of research forwards is of great importance for the CEE countries, which have had at the same time both relatively low and fluctuating saving rates and also a volatile macroeconomic environment with large fluctuations in growth rates, unemployment and inflation rates (Kukk & Staehr, 2017). However Poland's accession to the EU was associated with an increasing macroeconomic convergence in the aftermath of the accession, with few exceptions (convergence of business cycles). Liberda (2015) reveals that an improvement of the net international investment position of Poland requires the domestic saving rate to be raised, while the share of households savings in domestic savings demonstrates a declining trend. Kłopocka (2018b) provides more rationale for an increase in household saving in Poland. In this context the research on determinants of Polish household financial behavior is particularly relevant. Some aspects of changes in Polish household saving behavior were discussed by, among others, Kłopocka (2017), Kolasa and Liberda (2015), Korzeniowska (2019), Kośny (2013), Kośny (2020), Potocki and Cierpiał-Wolan (2019), Swiecka et al. (2020). Still, household saving response to the uncertainty in Poland requires researchers’ attention. This paper contributes to filling the gap in the literature by addressing the issue of household saving against unemployment risk in terms of changes in credit supply and households’ financial wealth in Poland. 3. Data and Method3. Data and Method As mentioned earlier, empirical works on the analysis of precautionary savings differ in the dependent variable used, in the uncertainty measure and in the control variables included in the empirical analysis. In this paper, aimed at providing an empirical evaluation of the precautionary saving in Poland, we regress the gross household saving rate on the determinants implied by the model, in which saving depends on the gap between target and actual wealth, with the target determined by credit availability and unemployment expectations (Carroll et al., 2019). Therefore, we directly examine significance of the precautionary, wealth, and credit effects on the Polish household saving. We concentrate on the labor income uncertainty. The gross household saving rate (SR) is calculated by dividing household gross saving by household gross disposable income, the latter being adjusted for the change in the net equity of households in pension funds reserves. The household saving rate published by Eurostat (ESA2010) is employed here. In the literature on precautionary saving, labor income risk is the main source of uncertainty. We use unemployment expectation index (UE) as a proxy for the perceived risk of labor income loss. The index is based on survey data generated within the EU Programme of Business and Consumer Surveys. The question applied to construct the index is: ‘How do you expect the number of people unemployed in this country to change over the next 12 months?’ The index values range from −100 if all respondents choose the answer fall sharply (positive consumer sentiment, low unemployment risk) to +100, if all respondents choose the option increase sharply (negative consumer sentiment, high unemployment risk). Detailed information on consumer survey methodology is presented in European Commission (2020). To measure the credit supply conditions, the credit conditions index (CC) is constructed using the National Bank of Poland's Senior Loan Officer Opinion Survey. The survey-participating banks evaluate seven factors of housing loans terms, as follows: - spread on average loans (wider spread – tightened, narrower margin – eased), - spread on riskier loans, - non-interest loan costs (fees, etc.) (higher costs – tightened, lower costs – eased), - security/collateral requirements, - maximum loan-to-value (LTV) ratio (lower LTV ratio – tightened, higher ratio – eased), - maximum loan maturity (shorter –tightened, longer – eased), - other terms. Each factor is rated using the following scale: – – tightened considerably – tightened somewhat = remained basically unchanged + eased somewhat + + eased considerably N/A not applicable The so-called net percentage is calculated for each factor, that is the difference between the percentage
www.ce.vizja.pl 379 Do Credit Supply and Unemployment Risk Matter for Household Saving? Evidence from Poland This work is licensed under a Creative Commons Attribution 4.0 International License. of responses eased considerably and eased somewhat and the percentage of responses tightened considerably and tightened somewhat. A negative index indicates a tendency of tightening the terms of loans. The credit conditions index (CC) is the arithmetic average of the indexes calculated for each of the above mentioned seven factors of housing loans terms. Further information on the Senior Loan Officer Opinion Survey methodology is included in NBP (2019). To capture the wealth channel, the ratio of household net financial assets to gross income (FW), published by Eurostat is used. Moreover, the list of control variables include: • the real gross household disposable income (IC) in billions (a thousand million) of national currency (PLN) (current values are deflated by the Harmonized Index of Consumer Prices (HICP)), published by Eurostat; • the real 3-month interest rate (IR) (a representative short-term interest rate series for the domestic money market deflated by the HICP), published by Eurostat; • the real GDP growth (GDP), published by the Central Statistical Office; • the all-items Harmonized Index of Consumer Prices (HICP) (moving 12-months average rate of change), published by Eurostat; and • the unemployment rate (UR) as a percentage of the active population, published by Eurostat. The dataset covers quarterly observations from 2003 Q4 to 2019 Q3. The period under analysis is determined by the availability of data. Using quarterly data results in more data points and allows to take the dynamic structure of the data more seriously. Table 1 reveals the descriptive statistics of the variables. Appendix 1 provides plots of the series. The key variables, namely, the gross household saving rate, the unemployment expectations index and the credit conditions index are visualized together in Figure 1. From the graph we can draw some preliminary conclusions about the dynamics of variables over the period of analysis. There are some foundations to notice that the gross household saving rate reflects the path of une mployFigure 1 Gross Household Saving Rate, Unemployment Expectations Index and Credit Conditions Index Note: Credit Condition Index is multiplied by 100 for the sake of series presentation.
380 Aneta Maria Kłopocka, Ryszard Wilczyński 10.5709/ce.1897-9254.455DOI: CONTEMPORARY ECONOMICS Vol. 15 Issue 4 375-3922021 ment expectations index with some lag. Both variables share the downward slope until the turmoil of the Global Financial Crisis. Then the serious rise in perceived unemployment risk is pursued by an increase in the household saving rate. The peak of the unemployment expectations index (50 points) recorded in the first quarter of 2009 is followed by the local peak of the household saving rate (6 percent) three quarters later. After few quarters of the sharp decline in both variables (more profound and longer-lasting in case of the household saving rate) the lowest, close to zero level of household saving rate is noted. Later on, the mild intensification of unemployment risk is echoed in the increasing tendency in saving propensity, which persists even after 2012 in terms of the declining path of unemployment expectations index. The positive relationship of analyzed variables is visible again after 2015. The household saving rate and credit conditions index relationship is less clear. The credit conditions index is relatively stable in the analyzed years apart from the period of 2008-2009. Taking into consideration theoretical underpinnings we may associate the sharp drop in credit conditions recorded in 2008Q4 with the high increase in household saving rate two quarters later. Similarly, the recovery in credit conditions is supposed to entail a substantial reduction in saving propensity with some lag. These observations suggest that changes in the credit conditions index have a negative effect on the household saving rate with some delay. The delay may be derived from the time required for the completion of credit procedures by credit applicants as well as for the transmission of bank managers decisions to public awareness. Our preliminary notes on biTable 1 Descriptive Statistics Variable Symbol Mean Median Min Max SD Levels Gross Household Saving Rate (percentage) SR 3.56 3.12 0.53 9.16 1.64 Unemployment Expectations Index (points) UE 12.93 16.33 -17.73 50.13 17.26 Credit Conditions Index (points) CC -0.03 -0.01 -0.58 0.23 0.12 Household Net Financial Assets to Gross Income Rate (percentage) FW 352.72 356.74 206.38 432.36 55.75 Real Gross Household Disposable Income (billion PLN) IC 234.5 238.8 153.8 333.8 521.9 Real Interest Rate (percentage) IR 1.70 1.69 -0.39 4.90 1.16 Real GDP Growth (percentage) GDP 4.08 4.25 0.10 7.60 1.68 Harmonized Index of Consumer Prices (percentage) HICP 2.00 1.80 -0.70 4.20 1.51 Unemployment Rate (percentage) UR 9.56 9.30 3.10 19.90 4.56 First differences ΔGross Household Saving Rate (percentage points) ΔSR -0.09 0.07 -2.09 1.84 0.79 ΔUnemployment Expectations Index (points) ΔUE -0.55 -0.52 -16.50 37.00 7.32 ΔCredit Conditions Index (points) ΔCC 0.00 0.00 -0.53 0.23 0.12 ΔHousehold Net Financial Assets to Gross Income Rate (percentage points) ΔFW 1.54 3.13 -63.54 47.87 17.31 ΔReal Gross Household Disposable Income (billion PLN) ΔIC 2.85 2.87 -3.13 14.43 2.48 ΔReal Interest Rate (percentage points) ΔIR -0.08 -0.03 -1.61 0.78 0.36 ΔReal GDP Growth (percentage points) ΔGDP -0.01 0.06 -2.20 2.40 0.94 ΔHarmonized Index of Consumer Prices (percentage points) ΔHICP 0.02 0.00 -0.80 1.00 0.42 ΔUnemployment Rate (percentage points) ΔUR -0.26 -0.30 -1.60 1.20 0.50
www.ce.vizja.pl 381 Do Credit Supply and Unemployment Risk Matter for Household Saving? Evidence from Poland This work is licensed under a Creative Commons Attribution 4.0 International License. varia te relationships precede an in-depth econometric analysis in the multivariate context. Considering the literature about spurious regressions with time-series data the Augmented Dickey– Fuller tests are performed. The tests are estimated both in levels and first differences, with and without a trend. Table 2 reports the results of the tests. Most variables are found to be integrated of order one or I(1) (the credit conditions index is the exception as it is I(0)). I(1) variables should be differenced before they are used in linear regression models. It is the approach used in many times series regressions after Granger and Newbold’s (1974) original paper on the spurious regression problem (Wooldridge, 2013). Therefore, all variables are first-differenced and changes in household saving rate are modelled as a function of changes in other economic variables. We use quarterly data and allow for the possibility that the impact of explanatory variables on household saving is not purely contemporaneous but is also lagging to some extent. Hence, models with contemporaneous values and four lags (the typical number of lags in case of quarterly data) of independent variables are considered. The number of variables is to be limited to a necessary minimum given that a sample consists of only 59 observations (64 minus 1 due to first-differences, minus 4 due to lags) and models with only one value (contemporaneous or lagged) of each variable are preferred. The decision which value to use is made based on the evidence provided by the adjusted R 2 and Akaike’s Information Criterion (AIC) for alternative models. The baseline specification takes the following form: (1) where i = 0,1,...,4, t is a time subscript, UE symbolizes unemployment expectations index, CC stands for credit conditions index, FW represents household net financial assets to gross income rate, and ε_t is the error term. We expect a positive correlation between saving and unemployment risk and a negative correlation with credit conditions and financial assets scaled to income. In the second step of the analysis the baseline model is extended with control variables as follows: where IC represents income, IR - interest rate, GDPg - real GDP growth, HICP - inflation, and UR - unemployment rate. Table 2 ADF Test (p-values) Variable Constant Constant and linear trend Level First Difference Level First Difference Gross Household Saving Rate 0.179 0.000*** 0.297 0.000*** Unemployment Expectations Index 0.142 0.000*** 0.402 0.000*** Credit Conditions Index 0.001*** 0.000*** 0.005*** 0.000*** Household Net Financial Assets to Gross Income Rate 0.557 0.000*** 0.699 0.000*** Real Gross Household Disposable Income 0.999 0.000*** 0.692 0.000*** Real Interest Rate 0.221 0.000*** 0.233 0.001*** Real GDP Growth 0.131 0.000*** 0.271 0.001*** Harmonized Index of Consumer Prices 0.304 0.000*** 0.537 0.002*** Unemployment Rate 0.152 0.007*** 0.053* 0.022** Note: ***, **, * represent statistical significance at the 1%, 5%, and 10% levels respectively.
382 Aneta Maria Kłopocka, Ryszard Wilczyński 10.5709/ce.1897-9254.455DOI: CONTEMPORARY ECONOMICS Vol. 15 Issue 4 375-3922021 44 . Empirical Results and Discussion. Empirical Results and Discussion The following section presents and discusses empirical findings. Table 3 reveals the results of Equation 1 and several variations on Equation 2. Column 1 of Table 3 provides the baseline model with three key independent variables according to Equation 1. Results demonstrate a statistically significant relationship between changes in household saving rate and lagged changes in unemployment risk, credit conditions and household financial assets scaled to income. Each independent variable is significant at least at the 10% level and jointly they explain 30% of the variation of the dependent variable (adjusted R2 equals 0.301). This is a relatively good result for the model on first differences. The results of ADF test for residuals are presented. A fact that the residual time series is stationary is a further indication of the good quality of the model. Thus, we receive a model with good stochastic values in which all explanatory variables are stationary and residuals from the model are stationary. As expected, there is a strong positive correlation of changes in household saving rate with lagged changes in unemployment expectations index, and a strong negative correlation with lagged changes in credit conditions index and lagged changes in financial assets to income ratio. It can be interpreted that an increase by 1 percentage point in the difference of unemployment expectations index results in an increase in the difference of household saving rate by 0.016 percentage point Table 3 Household Saving Rate Regressions Variable (1) (2) (3) (4) (5) (6) Const 0.002 (0.074) -0.474** (0.108) 0.031 (0.079) -0.004 (0.074) -0.006 (0.072) -0.047 (0.094) ΔUnemployment Expectations Index_3 0.016* (0.008) 0.009 (0.007) 0.012 (0.009) 0.015* (0.008) 0.014 (0.009) 0.016** (0.008) ΔCredit Conditions Index_2 -2.673*** (0.573) -1.984*** (0.415) -2.446*** (0.618) -2.821*** (0.661) -2.684*** (0.588) -2.664*** (0.572) ΔNet Financial Assets to Gross Income Rate_4 -0.012*** (0.004) -0.010*** (0.003) -0.014*** (0.004) -0.011*** (0.003) -0.013*** (0.004) -0.012*** (0.004) ΔReal Disposable Income 0.154*** (0.024) ΔReal Interest Rate_4 0.354* (0.184) ΔReal GDP Growth_3 -0.098 (0.080) ΔHICP -0.303* (0.165) ΔUnemployment Rate_4 -0.186 (0.184) N 59 59 59 59 59 59 R20.301 0.528 0.316 0.302 0.312 0.305 F stat p-value 0.000 0.000 0.000 0.000 0.000 0.000 ADF test for residuals (p-values) 0.000 0.000 0.000 0.000 0.000 0.000 Notes: The table reports coefficients and their standard errors (in parentheses). Hypothesis tests were conducted using a heteroskedasticity and serial correlation robust covariance matrix. ***, **, * represent statistical significance at the 1%, 5%, and 10% levels respectively.
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390 Aneta Maria Kłopocka, Ryszard Wilczyński 10.5709/ce.1897-9254.455DOI: CONTEMPORARY ECONOMICS Vol. 15 Issue 4 375-3922021 Appendix 1. Appendix 1. Variables, levels and first differencesVariables, levels and first differences
www.ce.vizja.pl 391 Do Credit Supply and Unemployment Risk Matter for Household Saving? Evidence from Poland This work is licensed under a Creative Commons Attribution 4.0 International License.
392 Aneta Maria Kłopocka, Ryszard Wilczyński 10.5709/ce.1897-9254.455DOI: CONTEMPORARY ECONOMICS Vol. 15 Issue 4 375-3922021