Services are characterised by the integration of customers while the service is produced. This integration leads to interruptions in the processing of a customer order until the customer provides the missing input. Since customer behaviour can be planned to a certain extent only challenges in...

Financial services are characterised by the integration of customers while the service is being delivered. This integration leads to interruptions and thus delays in the processing of a customer order until for example the customer provides the missing input. Because customer behaviour can only...

This Working Paper gives insights into the concepts of productivity and efficiency. Both concepts are popular measures for evaluating productive units, either on macro or micro level. This paper provides clear definitions for both concepts and outlines key areas of interest in this context, such...