Regina Kaiser

• 12 heisst "Ich liebe dich": der Stasi-Offizier und die Dissidentin
• Measuring business cycles in economic time series
• Zwölf heißt »Ich liebe dich«
• A complete model-based interpretation of the Hodrick-Prescott Filter
• An application of TRAMO-SEATS
• Notes on time series analysis, ARIMA models and signal extraction
• Short-term and long-term trends, seasonal adjustment, and the business cycle