Seasonal adjustment is a widely applied statistical method. National Statistics Institutes around the world apply seasonal adjustment methods, such as X-12-ARIMA or TRAMO-SEATS, on a regular basis to help users interpret movements in the time series and aid in decision making. The seasonal...

The recent economic crisis has altered the dynamics of economic series and, as a consequence, introduced uncertainty in seasonal adjustment of recent years. This problem was discussed in recent workshops at the European Central Bank and at Eurostat in the context of adjustment of the Euro Area...

In this paper, the authors compare a trigonometrically designed low-pass filter with the Hodrick-Prescott filter and a conventional moving average. The authors examine by means of transfer functions, some practical applications and in comprehensive stochastic simulations how well the three...

This paper compares the efficiency of two methods explaining the cyclical movement of a time series at its current end. It refers to a newly developed low-pass filter and the seasonal adjustment method, represented by ASA-II. The empirical analysis starts with a visual comparison of the results...

Quantifying how Canada’s water yield has changed over time is an important component of the water accounts maintained by Statistics Canada. This study evaluates the movement in the series of annual water yield estimates for Southern Canada from 1971 to 2004. We estimated the movement in the...

The German meat market is facing considerable changes. Along with the boom of case-ready and discount stores, butchers and smaller retailers loose market shares, and private labels become widely accepted. The consumers' preferences are often neglected by these trends. This contribution discusses...

The efficient operation and management of an existing water supply system require short-term water demand forecasts as inputs. Conventionally, regression and time series analysis have been employed in modelling short-term water demand forecasts. The relatively new technique of artificial neural...

In recent years, many countries have adopted Fiscal Responsibility Laws to strengthen fiscal institutions and promote fiscal discipline in a credible, predictable and transparent manner. Still, results on the effectiveness of these laws remain tentative. In this paper, we test empirically...

Time series on economic activity in developing countries, in particular real GDP, are reported with important lags. Therefore, it is useful to construct indicators that coincide or lead the actual direction and level of economic activity. A general methodology to construct these indicators is...

This paper analyzes trends in the accumulation of NRI (nonresident Indian) deposits and investigates the determinants of these inflows. It finds that monthly deposit flows have been quite stable since the 1991 crisis; nevertheless, there have been occasions when monthly flows turned negative in...