The size of the informal economy in Poland is estimated by means of the Currency Demand Approach (CDA). Using quarterly data for the period 1999–2019, we adopt two separate econometric approaches. First, we specify a single equation model to estimate it with the Fully-Modified OLS method....

This study explores the effect of disaggregated oil price shocks on Zambia’s historic headline inflation rates. To quantify the contemporaneous impact of oil price shocks on inflation, a Structural Vector Autoregressive Model (SVAR) is utilised, which is supplemented with Impulse Response...

We propose two robust bootstrap-based simultaneous inference methods for time series models featuring time-varying coefficients and conduct an extensive simulation study to assess their performance. Our exploration covers a wide range of scenarios, encompassing serially correlated,...