C22 - Single Equation Models; Single Variables: Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion ProcessesReturn

We investigate an impact of oil-price shocks on GDP and exchange rate dynamics in resource-heterogeneous economies. We employ a Markov regime-switching version of a vector autoregressive (VAR) model to allow for regime shifts, non-linear effects and timevarying parameters of the VAR process. Empirically we use quarterly data series in oil exporting, metal-exporting, and less-resource-intensive economies. On average, real GDP in oil-exporting economies exhibits substantial contraction, while for metal exporters there is a significant real GDP expansion suggesting an offsetting effect of metal exports on oil imports. We find that currency appreciation state is more persistent in oil- and metal exporting economies while less-resource-intensive economies remain longer in a currency depreciation state. Further evidence suggests existence of the counteracting forces such as foreign exchange interventions by authorities in oil-exporting economies. It also emerges that currency appreciation in oil-exporting economies is driven largely by economic performance rather than oil price  movement.

This paper deals with the Czech household mortgage debt and its determinants in the 1Q2005 – 2Q2021 period. Our analysis focuses on variables determining the level of mortgage debt from short run and long run perspective. Our contribution is two-fold. First, we examine the relationship between selected variables within cross-correlation analysis. The results confirm positive dependency of household mortgage debt and real GDP, real gross average income and level of house prices. Contrary, negative relation was identified for real interest rates, unemployment rate and inflation rate. Second, we explore ARDL model and identify one cointegration relationship. Our results show that mortgage debt is positively affected by house prices in long run perspective. However, wider range of variables plays the role in short run, such as house prices, real gross average income, inflation and long-term interest rates.