Short-Term WIG20 Volatility around Interest-Rate Decision Announcements by the Monetary Policy Council of the National Bank of Poland: Evidence from 2005–2025
This study examines short-term WIG20 volatility around 235 interest-rate announcements by the Monetary Policy Council of the National Bank of Poland in 2005-2025. Volatility is measured from daily log returns in three- and five-day windows and analysed separately for decisions involving interest-rate changes and status...