Improving Electricity Market Price Forecasting with Factor Models for the Optimal Generation Bid

In liberalized electricity markets, the electricity generation companies usually manage their production by developing hourly bids that are sent to the day‐ahead market. As the prices at which the energy will be purchased are unknown until the end of the bidding process, forecasting of spot prices has become an essential element in electricity management strategies. In this article, we apply forecasting factor models to the market framework in Spain and Portugal and study their performance. Although their goodness of fit is similar to that of autoregressive integrated moving average models, they are easier to implement. The second part of the paper uses the spot‐price forecasting model to generate inputs for a stochastic programming model, which is then used to determine the company's optimal generation bid. The resulting optimal bidding curves are presented and analyzed in the context of the Iberian day‐ahead electricity market.     

Teacher well-being and innovation with information and communication technologies; proposal for a structural model

The fundamental objective of the study presented in this article is to formulate a theoretical model with an empirical base that identifies the factors associated with the well-being of teachers, when they tackle processes of educational innovation mediated by the use of the information and communication technologies (ICT). Subjective well-being is an area of study of social psychology linked to the studies into “happiness” or “satisfaction with life” and constitutes an increasingly broad theoretical body. A questionnaire was produced, based on the scientific foundations that support the proposed model, and its validity and reliability have been established. The population and sample is made up of 322 teachers from non university centres that carry out innovative experiences with ICT in four Regions of Spain. The results obtained confirm five latent variables that explain the teacher well-being associated with innovation practices in ICT: (1) values/projects, (2) motivation, (3) competences, (4) satisfaction and (5) emotions. An explanatory structural model of teacher well-being is empirically validated. These findings could be of interest in identifying and promoting the relevant keys that help to improve the emotional states of working teachers.     

Measuring uncertainty and assessing its predictive power in the euro area

Expectations and uncertainty play a key role in economic behavior. This paper deals with both, expectations and uncertainty derived from the European Central Bank Survey of Professional Forecasters. Given the strong turbulences that the euro area macroeconomic indicators observe since 2007, the aim of the paper is to check whether there is any room for improvement of the consensus forecast accuracy for GDP growth and inflation when accounting for uncertainty. We propose a new measure of uncertainty, alternative to the ad hoc equal weights commonly used, based on principal components. We test the role of uncertainty in forecasting macroeconomic performance in the euro area between 2005 and 2015. We also check the role of surprises in the considered forecasting sample.     

Effect of information quality due accounting regulatory changes: Applied case to Mexican real sector

The purpose of this paper is to examine whether changes in accounting standards improve value relevance of financial information on listed companies in Mexico. The research was conducted for the period 2000–2013 using a sample of 141 companies that report to the Mexican stock exchange using the methodology of panel data. Our findings show that changes in local regulations (generally accepted accounting principles) to internationally approved standards (Financial Reporting Standards and International Financial Reporting Standards) increase the value relevance and therefore the quality of information. The study shows that the accounting information with international Financial Reporting Standards is more trustworthy for foreign and national investors.     

Why do patterns of environmental response differ? A stakeholders' pressure approach

The objective of this article is to analyze the strategies or patterns of adaptation of firms for responding to environmental requirements or expectations. We specifically analyze the influence of the different pressure agents or stakeholders on the degree of proactivity of these patterns. We therefore propose and validate four types of environmental response pattern, representing particular configurations of both the scope of environmental objectives and their allocation of internal resources. The analysis, which is focused on a sample of 240 industrial firms, provides empirical evidence enabling us to identify, understand, and evaluate the impact of stakeholders on the choice of environmental response pattern. Copyright © 2008 John Wiley & Sons, Ltd.     

The Effects of Decentralization in Strategy‐Making and National Culture on NPD Portfolio Planning

Traditionally, the understanding among scholars and practitioners has been that a portfolio of NPD projects is the expression of a firm's strategy and thus it must support the strategy. In keeping with this view, the current study focuses on new product development (NPD) portfolio planning, which is defined as a firm's effort to formulate portfolio decisions using a defined innovation strategy. Connecting portfolio decisions to a defined innovation strategy has been associated with higher innovation success. Surprisingly, empirical research indicates that portfolio decisions do not always support the company's innovation strategy. Furthermore, during recent years, an increasing number of authors underscore the importance of responsiveness and adaptability in portfolio decision‐making. The current study addresses these two issues by examining a direct effect of decentralization in strategy‐making on NPD portfolio planning, and a moderating effect of decentralization in strategy‐making on the relationship between NPD portfolio planning and NPD program success. The study also examines the influence of national culture on the proposed relationships. The theoretical model was tested using data from the 2012 PDMA Comparative Performance Assessment Study. Findings indicate that NPD portfolio planning positively influences NPD program success. Also, results revealed inverted U‐shaped direct and moderating effects, respectively, of decentralization in strategy‐making on NPD portfolio planning, and of decentralization in strategy‐making on the relationship between NPD portfolio planning and NPD program success. With regard to the moderating effect of national culture, results indicate that uncertainty avoidance does not moderate the relationship between NPD portfolio planning and NPD program success. Nonetheless, we found significant moderating effects of individualism and power distance on the curvilinear relationship between decentralization in strategy‐making and NPD portfolio planning.     

Practically wise ethical decision‐making: An ethnographic application to the UNE‐Millicom merger

Integrated approaches in the ethical decision‐making (EDM) and practically wise decision‐making literature are emerging as alternative perspectives to management theories that conceptualize decision‐making in a rationalist and value‐free manner. However, more dialogue between both perspectives and qualitative research that applies them is required. In addition, there is a need for empirical analysis on business engagement in the face of grand challenges in developing countries. This paper proposes an integrated practically wise EDM framework to study how Colombian councilors who, in 2013, voted for or against the merger between the Colombian state‐owned company UNE and the Swedish multinational Millicom interpret this decision and its public impact. Qualitative semi‐structured interviews were conducted with a voluntary sample of 18 of 21 councilors. Supporters of the UNE‐Millicom merger expressed open‐mindedness, seeing the merger as a means to achieve justice. On the contrary, the merger’s opponents expressed circumspection, doubting that Millicom’s intentions really leaned toward justice. We conclude that practical wisdom—embodied by both supporters and detractors—fosters an understanding of EDM beyond what leaders should not do. It also includes a democratic and balanced deliberation on what leaders think they should do to promote the common good.     

Impact of training on improving service quality in small provincial restaurants

The objective of this study was to show how the training of service employees contributes to enhancing the customer’s service experience in the context of small, family-owned provincial restaurants. This type of restaurant is particularly relevant to the regional employment and economy in Mexico’s countryside. However, as the human resources that are available are generally limited, training becomes relevant to develop proper service skills and customer orientation. The effectiveness of training in the improvement of service quality was evident after the comparison of measures of service quality and perceived price before and after service-employees completed the training.     

Tourist preferences for rural house stays: Evidence from discrete choice modelling in Spain

Although the appeal of rural houses for tourists lies mainly in the natural surroundings and their intrinsic rural characteristics, there are other factors which are also important such as their size, type of building, quality of equipment, services and activities offered. To evaluate the tourists' preferences for these potential or effective attributes, a stated preference experiment was conducted in the Northwest area of the Region of Murcia and the data are analysed using discrete choice modelling methodology. Consistent specifications for multinomial logit and mixed logit models that consider variations in tastes within tourists' preferences are found. The results could be of use to promoters and owners of rural houses when planning marketing and promotional campaigns or when taking effective investment decisions.