Mit der Gründung des sozialen Netzwerks Facebook sowie der Einführung des iPhones wurde mit Ausprägungen wie Social und Mobile Commerce der E-Commerce revolutioniert. Geolokationstechnologien, die im Zuge der Erfolgsgeschichte des Smartphones massentauglich wurden, haben eine weitere...

We propose a modified version of the augmented Kalman filter (AKF) to evaluate the likelihood of linear and time-invariant state-space models (SSMs). Unlike the regular AKF, this augmented steady-state Kalman filter (ASKF), as we call it, is based on a steady-state Kalman filter (SKF). We show...

We take the neoclassical perspective and apply the business cycle accounting method as proposed by Chari, Kehoe, and McGrattan (2007, Econometrica) for the Great Recession and the associated stimulus program in Germany 2008-2009. We include wedges to the variables government consumption,...

Polynomial chaos expansion (PCE) provides a method that enables the user to represent a quantity of interest (QoI) of a model's solution as a series expansion of uncertain model inputs, usually its parameters. Among the QoIs are the policy function, the second moments of observables, or the...