Mobile sensing is a promising method that allows researchers to directly observe human social behavior in daily life using people's mobile phones. To date, limited knowledge exists on how well mobile sensing can assess the quantity and quality of social interactions. We therefore examined the agreement among experience sampling, day reconstruction, and mobile sensing in the assessment of multiple aspects ...
Panel studies have become an indispensable part of today's research world especially when addressing causal questions and tracking changes over time. Three conditions are essential for effective panel data analysis: 1) having a sufficiently long time series with a substantial number of observations, 2) ensuring measurement consistency over time, and 3) using a meaningful model for selecting elements ...
Die Bedeutung der internationalen Beschaffung von Vorleistungen hat in den zurückliegenden Dekaden zugenommen. Dies gilt auch für Güter aus dem Bereich der Informations- und Kommunikationstechnologien (IKT), beispielsweise Mikrochips, die ein wichtiger Input in der heimischen Produktion sind und das Fundament einer digitalisierten Wirtschaft bilden. Die meisten Unternehmen setzen bei ihren Importen ...
This paper deals with the data generation process implemented for an analysis of the impact of the 9-Euro ticket on mode choice. We discuss the assumptions made and procedures used to process a raw dataset that is based on GPS traces of individuals’ movements and on survey data into the choice-set for a discrete choice model. Several steps of cleaning and merging are described in order to a) obtain ...