Economic activity occurs in a changing and globalized environment. Thus, business decisions that are made in a competitive context and with asymmetric information are based, mainly, on quantitative elements that, based on decision models, allow information to be obtained that facilitate the...

With the broader availability of panel data, fixed effects (FE) regression models are becoming increasingly important in sociology. However, in some studies the potential pitfalls of these models may be ignored, and common critiques of FE models may not always be applicable in comparison to...

Die Datengrundlage in der Politikwissenschaft hat sich in den letzten Jahren stark verändert und ist breiter geworden. Daten sozialer Medien und digitale Spurendaten erweitern das Methodenportfolio in den Sozialwissenschaften beträchtlich. In diesem Artikel diskutieren wir Herausforderungen...

Governments around the world want to develop their ICT and digital industries. Policymakers thus need a clear sense of the size and characteristics of digital businesses, but this is hard to do with conventional datasets and industry codes. This paper uses innovative 'big data' resources to...

The socioeconomic situation of European coalfields is highly heterogeneous. On the one hand, successful examples comprise regions that long ago embraced internationalization, innovation and/or restructuring strategies. In those regions where the aforementioned strategies were fruitful, the...

This article is a supplement to the stock technical analysis and its main objective is to classify 88 companies belonging to the Mexican Stock Exchange. Using principal component analysis (PCA) and linear discriminant analysis (LDA), the input hypothesis is to group companies according to their...

We propose a Hawkish-Dovish (HD) indicator that measures the degree of 'hawkishness' or 'dovishness' of the media's perception of the ECB's tone at each press conference. We compare two methods to calculate the indicator: semantic orientation and Support Vector Machines text classification. We...

The preference disaggregation approach to the problem of multicriteria choice is to uncover the inherent model of choice that brings a decision unit to a conclusion in terms of an overall preference on the alternatives. In the context, the actual market shares of a class of competing products...