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Wpływ infrastruktury na produktywność w gospodarce Polski

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Mackiewicz-Łyziak J.
Gospodarka Narodowa. The Polish Journal of Economics
|
2010
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vol. 238
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issue 3
41-61
EN
The paper focuses on the link between infrastructure and productivity in the Polish economy. The researcher aims to estimate the direct elasticity of GDP with regard to infrastructure and check the indirect influence of infrastructure on productivity. The adopted research method is based on estimating a three-factor production function for Poland, covering capital, labor and infrastructure. Two forms of the production function were adopted, the Cobb-Douglas function and the translog function. The production function was estimated on the basis of data for Poland’s 16 provinces in 2000-2006. The findings obtained by the author show that infrastructure is an important factor influencing production. The estimated direct elasticity of GDP to infrastructure ranged from 0.11 to 0.22 depending on the production function and the variables used. This level of elasticity is compatible with research findings for other countries, the author says. However, Mackiewicz-Łyziak’s research yielded no conclusive findings on the influence of infrastructure on productivity in the case of other production factors.
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Are Central Banks In CEE Countries Concerned About The Burden Of Public Debt?

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Mackiewicz-Łyziak J.
Comparative Economic Research. Central and Eastern Europe
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2017
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vol. 20
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issue 1
35-51
PL
Celem badania jest analiza reguł polityki pieniężnej w Czechach, Polsce i na Węgrzech, z długiem jako dodatkową zmienną objaśniającą. Estymowana jest liniowa reguła przy użyciu Uogólnionej Metody Momentów oraz reguła nieliniowa przy użyciu modelu przełącznikowego Markova. Wyniki badania sugerują, że w Czechach i Polsce władze monetarne reagowały na rosnący dług obniżaniem stóp procentowych, podczas gdy na Węgrzech reakcja była odwrotna. Ponadto, wyróżniamy pasywny i aktywny reżim polityki pieniężnej, przy czym reżim aktywny charakteryzuje się niższym stopniem wygładzania stóp procentowych i silniejszą reakcją banku centralnego na inflację i/lub lukę produktową. W reżimie pasywnym luka produktowa okazuje się być statystycznie nieistotna.
EN
The aim of this study is to analyze the monetary policy rules in the Czech Republic, Hungary and Poland, with public debt as an additional explanatory variable. We estimate linear rules by the GMM estimation and non-linear rules, using the Markov-switching model. Our findings suggest that in the Czech Republic and Poland the monetary authorities respond to growing public debt by lowering interest rates, while in Hungary the opposite may be observed. Moreover, we distinguish between passive and active monetary policy regimes and find that the degree of interest rate smoothing is lower and the response of the central banks to inflation and/or output gap is stronger in an active regime. In the passive regime, the output gap seems to be statistically insignificant.
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