Zusammenfassung In der vorliegenden Arbeit wird die Leistungsfähigkeit zweier Verfahren zur Verdeutlichung der konjunkturellen Entwicklung einer wirtschaftlichen Zeitreihe am aktuellen Rand verglichen. Es handelt sich dabei um einen neu entwickelten Tiefpassfilter und das...

Summary The Baxter-King filter shows some weaknesses, particularly with regard to monthly time series. This procedure involves not only a loss of data for the border areas of time series, but suppresses inadequately high frequency components and shows as a low-pass filter only the performance of...

Summary We apply the Threshold Autoregressive Conditional Duration Model (TACD) as proposed by Zhang, Russell, and Tsay (1999) to model the after market trading duration process associated with the initial public offering of the Deutsche Telekom AG share in November of 1996. Special emphasis is...

Summary The rise of the East-German economy in the 1950s and 1960s and its decline in the 1970s and 1980s is difficult to explain by neoclassical economics. However; the observed life cycle may be explained by the inclusion of concepts from old and new institutional economics and from functional...

Purpose This paper aims to evaluate the performance of a chat reference service implemented at an academic library in a private liberal arts college by gauging its impact on other forms of reference service in terms of usage volume, with a focus on research-related face-to-face reference...

Purpose – The purpose of this paper is to investigate how the changing of institutional logics in an established field shapes the developmental networks of high‐achievers. Design/methodology/approach – This research combines time series analysis of more than 80 years of historical data...

This article describes how simplifying production-planning approaches for demand responsiveness has been well recognized as an operative means of accomplishing production efficiency. To support an effective decision making in manufacturing environments, this study will focus on adopting time...