Search results for "Discrete choice"
showing 10 items of 33 documents
Rail freight transport and demand requirements : an analysis of attribute cut-offs through a stated preference experiment
2014
This paper analyses the choice between road and rail in Spain where rail market share for freight is still residual. Discrete choice models are estimated with data obtained through a two-phase fieldwork, thus allowing us to carry out a stated preference efficient design for each interviewee. We analyse the existence of attribute cut-offs and the presence of a segment of the population with a zero value of frequency. Our results show that ignoring the existence of cut-offs and segments of the population with polarised valuations can lead to erroneous conclusions in terms of the possibilities of rail for absorbing significant quota.
Valoració de l’Avaluació en Competències a través de models d’elecció discreta
2017
La implantació dels nous mètodes d’ensenyament, sota el marc establert per l’Espai Europeu d’Educació Superior (EEES), suposa un canvi en l’organització de la forma d’ensenyar i aprendre, centrat en la formació per competències. En termes d’avaluació, la nova forma d’ensenyament implica el pas d’un sistema d’avaluació única a un sistema d’avaluació contínua, en el qual l’estudiant participa activament en el procés d’aprenentatge i en la consecució no només dels objectius establerts per a cada assignatura, sinó també en l’adquisició d’habilitats i destreses més generals i de caràcter transversal. L’objectiu d’aquesta comunicació és presentar una anàlisi de l’impacte sobre el resultat final …
Resisting the extortion racket: an empirical analysis
2018
While the contributions on the organized crime and Mafia environments are many, there is a lack of empirical evidence on the firm’s decision to resist to extortion. Our case study is based on Addiopizzo, an NGO that, from 2004, invites firms to refuse requests from the local Mafia and to join a public list of “non-payers”. The research is based on a dataset obtained linking the current administrative archives maintained by the chambers of commerce and the list updated by the NGO. The objective of this paper is twofold: first, to gather sound data on the characteristics of the Addiopizzo joiners; second to model the probability to join Addiopizzo by a two-level logistic regression model. We …
Young people' s willingness to pay for environmental protection
2021
Abstract The cost of the ongoing degradation of natural capital will inevitably be borne by the younger generations. And, as the wave of school strikes for action against climate change have proved, they do not want their voice to be ignored. Discrete Choice Experiments are increasingly used for the valuation of environmental goods, but they have never been conducted with minors. We designed and administered such an experiment to elicit the willingness of children and teenagers, aged 8–19, to pay for environmental projects. The results suggest that their marginal willingness to pay is higher for projects in their own country (Italy) and that the utility of environmental protection is greate…
Deviations in pedestrian itineraries in urban areas: a method to assess the role of environmental factors
2010
Walking has long been neglected in urban-mobility research, but it is now making its way into numerous studies using various approaches. Empirical data are often processed in well-known models of flow allocation to study the behaviour of pedestrians and to identify their preferences. However, these models assume that route choices are predetermined at the start of each trip and do not admit any possible intervening decision along these trips. We propose to overcome this limitation through a new method for the analysis of pedestrian behaviour. This method, which we call ‘deviation analysis’ consists of (1) identifying the intersections from which a pedestrian has chosen a route longer than …
The potential of rotorcraft for intercity passenger transport
2007
Abstract There are many high-speed rail projects in Europe at different stages of development. They are supported on environmental grounds and as a means of reducing congestion on other modes, including aviation. High-speed rail, however requires major investment costs, takes a long time to come online, and involves considerable financial risks. A potential alternative that overcomes some of these problems makes use of rotorcrafts. This paper assesses the potentiality of civil rotorcrafts as part of the air transport system. Discrete mode choice models are used to forecast traveller choice behaviour when the rotorcraft is introduced and financial evaluations performed looking at the operati…
The Value of Auditor Industry Specialization: Evidence from a Structural Model
2021
ABSTRACT This study investigates the value of auditor industry specialization. In the first step, we use a discrete choice model to derive the first-order demand for auditor industry specialization. Our results reveal that clients have a general preference for auditor industry specialization, relating to both audit firm and audit office specialization. We observe that specializations at the audit firm and audit office level are substitutes. We also find that larger, more complex clients have a stronger demand for industry specialization at the audit office level. In the second step, we use the results from the discrete choice model to quantify the value of auditor industry specialists for c…
Maximin Model Robust Discrete Choice Experiments
2013
Discrete choice experiments have their genesis in conjoint analysis, which was based on first-order models. For this and other reasons, discrete choice experiments in practice are usually designed for estimation of main effects. In this paper, we explore the construction of maximin model robust designs when the experimenter is concerned about the presence of interactions. We consider three classes of models—main effects models, main effects models plus first-order interactions, and secondorder models, and we construct designs that maximize the minimum efficiency of the design for the three competing models. We do so first with standard linear models and then extend our analysis to nonlinear…
Choosing among alternative technological strategies: an empirical analysis of formal sources of innovation
2003
Abstract This work aims to offer a detailed conceptual and empirical analysis of the inter-firm differences in deciding the composition of their technological efforts. Using data for Spanish firms in the period 1990–1996, the study begins with the standard analysis of the determinants of innovative investment, then moves on to the less analysed question of the determinants of the generate versus import alternative and ends with a novel analysis of the characteristics which lead firms to organise research internally as compared to the possibility of contracting R&D services externally. In contrast to standard practice, the econometric approach takes into account the existence of non-linearit…
Interactive vs. non-interactive knowledge production by faculty members
2008
16 pages, 4 tables