locate outliers and level shifts. These deviations help in identifying changes in this productivity index.  …

econometrics. Significant theoretical contributions to financial econometrics have been made by experts in statistics, econometrics … to time series and financial econometrics, including forecasting co-volatilities via factor models with asymmetry and … long memory in realized covariance, prediction of Lévy-driven CARMA processes, functional index coefficient models with …

Forecasts from various experts are often used in macroeconomic forecasting models. Usually the focus is on the mean or … median of the survey data. In the present study we adopt a different perspective on the survey data as we examine the … temporal changes in an economic process or in the predictive power of the survey forecasts. In our empirical work, we examine a …