Dynamics of analysts' coverage and the firms' information environment

The main goal of this paper is to study analysts' coverage of stocks. Through a series of ordered probit regressions the paper studies the relationship between changes in coverage and the information environment of a firm.Coverage decreases on average with higher errors in estimation. The data also shows that coverage is less likely to decrease for physically large firms, but more likely to decrease for firms with high lagged market value. Higher past revisions to the predictions also decrease coverage, showing a real cost of uncertainty.     

Services for the underserved: unintended well-being

There is a lack of research on service consumption practices of Base of the Pyramid consumers. This study contributes to the Transformative Service Research agenda by understanding stigmatized service consumption practices and their effect on the well-being of these consumers; this has not been fully addressed until now. Additionally, it is shown that understanding the relations among consumers, communities, and informal service offerings results in the design of services with unintentional positive effects on well-being at individual, collective, and relational levels. Findings show that informal service offerings are non-discriminatory, hassle-free, jargon-free, and reputation-based. These findings pave the way to further explore such complex contexts to better understand the impact of service design on the well-being of such consumers. Positive practices can be adopted by any service industry that intends to serve that segment through the intentional redesign of offerings that are engaging, inclusive, and simple and acknowledge social standing.     

Hierarchical clustering of spatially correlated functional data

Classification problems of functional data arise naturally in many applications. Several approaches have been considered for solving the problem of finding groups based on functional data. In this paper, we are interested in detecting groups when the functional data are spatially correlated. Our methodology allows to find spatially homogeneous groups of sites when the observations at each sampling location consist of samples of random functions. In univariable and multivariable geostatistics, various methods of incorporating spatial information into the clustering analysis have been considered. Here, we extend these methods to the functional context to fulfil the task of clustering spatially correlated curves. In our approach, we initially use basis functions to smooth the observed data, and then, we weight the dissimilarity matrix among curves by either the trace‐variogram or the multivariable variogram calculated with the coefficients of the basis functions. This paper contains a simulation study as well as the analysis of a real data set corresponding to average daily temperatures measured at 35 Canadian weather stations.     

Eco-driving by replicating best driving practices

Some transit companies have reduced up to 25% of their fuel consumption by training their drivers on eco-driving. We propose to further reduce fuel consumption by using best driving practices, which consist of guiding drivers on the recommended ranges of vehicle speed and engine RPM that lead to minimum fuel consumptions. These recommendations are obtained by monitoring the engine operational parameters used by drivers who have shown the lowest fuel consumption while driving vehicles of similar technology and running on the same section of the road. To demonstrate the applicability of this alternative, we monitored a fleet of 15 transit buses of recent technology serving a ～72-km long route of general characteristics during eight months of normal operation. For each kilometer, trips with the lowest fuel consumption were selected, and their interquartile ranges of RPM and speed were obtained. Then, a well-trained driver in eco-driving traveled over the same road with same type of buses, using these recommended ranges. Using his eco-driving training, he obtained a 0.5% reduction in fuel consumption with respect to the average of the population, and by using the best driving practices, his savings increased up to 10.1%. These savings were linked to an increase in the average energy efficiency of the engine from 27.6% to 28.9%, which demonstrates that when drivers use these best driving practices, they tend to operate the engine under conditions closer to the load—RPM engine area of engine highest efficiency.     

A methodological proposal for a strategic design investigation

This article presents the decisions that are presented in the transition from theoretical to methodological, as a means to establish coherence and validity in an investigation that addresses strategic design’s contribution to organizational transformations. A coherent methodological proposal is presented between the ontological posture (intersubjectivity), epistemological posture (pragmatism), and research method (mixed) required to address the object of research in strategic design, and to consistently select the various techniques and procedures required. This proposal is pertinent to respond to the research question of what the role fo strategic design might be, as related to organizational transformation, to the extent that it provides competencies (human capital), processes (structural capital), and a relationship model (relational capital).

     

Project Manager Profile Characterization in the Construction Sector in Bogotá, Colombia

This study aims to describe and evaluate the characteristics (educational background, training, skills, and experience) that make up the project manager profile in the construction sector in Bogotá, Colombia. This study is based on a project management literature review, expert interviews and surveys with a group of project managers in the construction sector, and comparisons between them. This evaluation aims to contribute to the development of a clearer de?nition of the project manager profile in the Colombian context. The identified project manager profile satisfies the essential desired characteristics with some particular weaknesses related to education and training in project management.