Airport capacity and demand calculations by simulation��the case of Berlin-Brandenburg International Airport

Airports are vital parts of traffic infrastructure and networks in global and dynamic economies securing inter- and transcontinental mobility of goods and people in spatially dislocated market structures. The operational capacity of an airport must be dimensioned under a long-term strategic view as its productivity is determined by available infrastructure. Often expansion projects for, e.g., an additional runway require a timeframe of up to twenty years for negotiation, planning and construction. The correction of existing or future bottlenecks will be increasingly difficult, partly due to public and political opposition and environmental awareness. From this point of view we critically examine the published planning figures and forecasts of demand and capacity of the currently constructed Berlin-Brandenburg International airport over a 20-year timeframe. Our methodology is based on a computer simulation of an independent parallel runway in segregated mode. Increasing traffic and changing traffic mix are simulated with the airport and airspace modeling tool SIMMOD, which provides the output data to calculate the capacity utilization and chosen level of service indicator minutes of average delay per flight. The simulation has shown that the practical capacity of 76 flights per hour is the maximum demand to be served under the defined assumptions. We discuss our findings and compare our results with other airports operating a similar runway layout.     

Trends als Katalysator einer Marketingkarriere

Trends, echte Innovationen und sich schnell überholende Modewellen bieten Chancen und Gefahren zugleich für Karrieren im Marketing. Insbesondere Führungskr?fte im Marketing sind mit einer gewissen Schnelllebigkeit konfrontiert. Diese ist durchaus Grund genug für Karrierepfade, die nichts mit einer typischen Karriereplanung, wie sie in anderen betriebswirtschaftlichen Disziplinen heute oftmals noch üblich sind, zu tun haben. Der folgende Beitrag widmet sich dem Zusammenwirken von Trends und Karrieren vor dem Hintergrund der Markenführung als Fachthema im Grenzgebiet zwischen Marketing und Unternehmensführung.     

A reexamination and extension of international strategy–structure theory

Using a sample of 95 German firms, the study finds general support for the traditional fits of international strategy–structure theory. Employing an information‐processing perspective, the study conceptually and empirically extends existing theory (1) to address strategy–structure fit for various types of matrix structure, and (2) by adding two new elements of international strategy to the existing international strategy–structure model: the level of international transfers and level of foreign R&D. Copyright © 2002 John Wiley & Sons, Ltd.     

Parameter instability in aggregate US import demand functions

The paper examines parameter stability in aggregate US import demand functions for the time period 1972–1990. We identify in particular whether parameter stability depends upon the definitions used to represent the dependent and independent variables. Significant instability is found for 1974/75 in all models tested. For the 1975–1990 period, parameter stability depends on the definition of the relative price term employed in the model. Equations which exclude computer imports tend to have fewer stability problems than non-oil import demand models. We also find that the most stable models generate the best out-of-sample forecasts.     

Small business dynamics in Europe

This paper examines how the firm-size distribution has shifted over the last two decades across a broad spectrum of European countries. The evidence suggests that a shift away from large firms and towards small business has taken place, particularly is the southern regions and in the high technology indutries.     

Exchange rate uncertainty and the efficiency of the forward market for foreign exchange

Exchange Rate Uncertainty and the Efficiency of the Forward Market for Foreign Exchange. — The paper investigates to what extent exchange rate uncertainty can account for the observed deviations from the forward market efficiency hypothesis (FMEH). The empirical analysis employs a simple varying parameter regression to allow uncertainty to modify the central parameters of the FMEH in a direct way. Uncertainty is proxied by significant exchange rate changes. The results indicate that there is considerable support for the FMEH if one allows the intercept term to vary over time.