This paper develops a Bayesian vector autoregressive model(BVAR) for the leader of the Portuguese car market to forecast the market share. The model includes five marketing decision variables.The Bayesian prior is selected on the basis of the accuracy of the out-of-sample forecasts. We find that...

A k-dimensional density function is determined by certain combinations of marginal and conditional densities. The present paper identifies all possible such specifications. Gelman and Speed (1993) have treated the finite discrete case of this problem. The present paper extends their work to a...

The paper is concerned with testing super exogeneity in a single equation that can either be linear or partially nonlinear. A joint test for testing both weak exogeneity and a form of invariance, which together amount to super exogeneity, is presented and its properties discussed. The...

We present some methods for the estimation and testing of usual ergodic interest rate models based on the observation of the short interest rate on the monetary market. First, we develop a test of type Kolmogorov-Smirnov for ergodic diffusion processes. We extend the results to the case where...

Die Arbeit befasst sich mit Anreiz-, Kontroll- und Steuerungsmechanismen bei PPP-Projekten und gibt konkrete Empfehlungen für die Gestaltung des Planungsprozesses sowie der Outputspezifikationen und Vergütungsmechanismen in PPP-Verträgen. Dabei wird die grundsätzliche Wirkungsweise des in...

Human resources (hereinafter referred to as HR) have always been playing a decisive role in economic life. The company’s competitiveness, success and market position greatly depends on its human factor organising and running it from the background. Although competency-based HR practices are...

This research challenges previous findings regarding the robustness of the African growth dummy by expanding the list of variables to include those suggested by Easterly and Levine (1998) and Sachs and Warner (1997b). Using the Bayesian Averaging of Classical Estimates approach, this paper...