Abstract

Beyond the undoubted revival of the podcast, its presence in the offer of some Spanish radio stations deserves a detailed analysis. This study presents the analysis of this offer, as well as an approach to the challenges and questions behind the production of native podcasts, exclusively for web consumption. People ultimately responsible for radio programming has to deal with the traditional program schedule, in flow, and now has to add the management of a catalog of podcasts. The quantitative analysis is combined with the qualitative analysis through interviews with some of the top managers responsible for deciding how these two complementary radio offers should coexist. Results show that so far podcasts could be defined as a cultural product rather than a product of a cultural industry.

Abstract

The continuous network design problem (CNDP) is known to be difficult to solve due to the intrinsic properties of non-convexity and nonlinearity. Such kinds of CNDP can be formulated as a bi-level programme, in which the upper level represents the designer's decisions and the lower level the travellers' responses. Formulations of this kind can be classified as either Stackelberg approaches or Nash ones according to the relationship between the upper level and the lower level parts. This paper formulates the CNDP for road expansion based on Stackelberg game where leader and follower exist, and allows for variety of travellers' behaviour in choosing their routes. In order to solve the problem by the Stackelberg approach, we need a relation between link flows and design parameters. For this purpose, we use a logit route choice model, which provides this in an explicit closed-form function. This model is applied to two example road networks to test and briefly compare the results between the Stackelberg and Nash approaches to explore the differences between them.