Abberger, Klaus; Graff, Michael; Müller, Oliver; … - 2022
frequency data sets. We refer to Swiss business tendency survey (BTS) data, in particular the KOF manufacturing surveys, which … only. This occurs in many countries, for example, the harmonised survey programme of the European Union also has this … imputation of missing (deleted) observations comprise the set of time series from the monthly KOF manufacturing BTS survey. At …