On income fluctuations and capital gains

We consider the infinite time horizon problem of asymptotically maximizing the expected accumulated discounted utility in a one-good production economy. The available capital in a given period is given by the production of the previous period plus a random variable. The product of the discount and interest factors is either (1) greater than or (2) equal to one. Under (1) the optimal policy exists under certain conditions and always under (2). The optimal capital sequence almost surely goes to infinity. Under (1) with conditions on the utility one almost surely reaches a capital level above which the sequence is increasing.     

A systematic mapping study of process mining

This study systematically assesses the process mining scenario from 2005 to 2014. The analysis of 705 papers evidenced ‘discovery’ (71%) as the main type of process mining addressed and ‘categorical prediction’ (25%) as the main mining task solved. The most applied traditional technique is the ‘graph structure-based’ ones (38%). Specifically concerning computational intelligence and machine learning techniques, we concluded that little relevance has been given to them. The most applied are ‘evolutionary computation’ (9%) and ‘decision tree’ (6%), respectively. Process mining challenges, such as balancing among robustness, simplicity, accuracy and generalization, could benefit from a larger use of such techniques.     

The Microeconomic Impacts of Employee Representatives: Evidence from Membership Thresholds

Employee representatives in firms are a potentially key but not yet studied source of the impact of unions and works councils. Their actions can shape multiple drivers of firm performance, including collective bargaining, strikes, and training. This article examines the impact of union representative mandates by exploiting legal membership thresholds present in many countries. In the case of Portugal, which we examine here, while firms employing up to forty‐nine union members are required to have one union representative; this increases to two (three) union reps for firms with fifty to ninety‐nine (100–199) union members. Drawing on matched employer–employee data on the unionized sector and regression discontinuity methods, we find that a one percentage point increase in the legal union representative/members ratio leads to an increase in firm performance of at least 7 percent. This result generally holds across multiple dimensions of firm performance and appears to be driven by increased training. However, we find no effects of union representatives on firm‐level wages, given the predominance of sectoral collective bargaining.     

Wicksell, Lindahl and the Theory of Public Goods

Wicksell's and Lindahl's ideas on public goods and decisions are reviewed in light of later developments in the theoretical economics literature. I begin by discussing their normative ideals, in particular the notion of justness, and the sources of the difficulties in reaching them. Wicksell's and Lindahl's ideal states, as well as the obstacles that they perceive, are compared to more recent views on free riding and on the behavior of elected representatives. Their views on political bargaining are then related to later concepts, in particular to the core of the economy.     

Government size,composition of public expenditure,and economic development

This paper analyzes the effects of government size and of the composition of public expenditure on economic development. Using the system-GMM estimator for linear dynamic panel data models, on a sample covering up to 156 countries and 5-year periods from 1980 to 2010, we find that government size as a percentage of GDP has a quadratic (inverted U-shaped) effect on the growth rate of the Human Development Index (HDI). This effect is especially pronounced in developed and high-income countries. We also find that the composition of public expenditure affects development, with the share of five subcomponents exhibiting nonlinear relationships with HDI growth.     

Regional differences in residential demand for very high bandwidth broadband internet in 2025

The future demand for data and the role of gigabit networks are central issues in the context of Next Generation Access (NGA) network roll-out. Based on a generic model, which allows to predict unconstrained future broadband demand in different regions and countries, the authors compare the results for Germany, the UK and the Flemish region, and discuss reasons for the different outcomes. The generic market potential model thereby allows to project the future demand for bandwidth from residential customers on the basis of applications and their bandwidth needs, user profiles and population structure on a household level. Despite a general trend towards an increasing need for broadband, there are clear differences. On the one hand, these point to the relevance of socio-demographic factors for broadband adoption. On the other hand, the relatively high proportion of refusals shows that there is still a need for further educational work on the part of public authorities and providers. Finally, it has to be stated, that our forecast relies on the assumption that connectivity and thus that the availability of area-wide gigabit capable broadband access does not represent a bottleneck.     

Advertising in streaming video: An integrative literature review and research agenda

Streaming video (SV), such as YouTube, is a new media widely used nowadays. Nevertheless, there is a lack of knowledge about advertising in SV. In view of this, through a search in the rich depository of the Scopus database, this article presents the first integrative literature review about advertising in SV. Searching every article and conference paper related to the topic published until May 04, 2020, 59 studies were found and classified into two main topics: marketing studies (35), mostly focused on evaluating or exploring advertising in SV, and computational studies (24), focusing on the development of systems for the insertion of ads into SV. All knowledge present in these studies was summarized so that readers (both scholars and practitioners) could have easy access to the main contributions and information present in each study. Moreover, future research directions in six main themes are presented through a research agenda.     

Impacts of Hedonic and Utilitarian User Motives on the Innovativeness of User‐Developed Solutions

When individual consumers develop products for their own use, they in part expect to be rewarded by the use value of what they are creating (utilitarian user motives), and in part expect to be rewarded intrinsically by such things as the fun and learning experience derived from creating it (hedonic user motives). This paper shows a first‐of‐type study to understand the relationship between individual consumers' motives to innovate and the novelty and utility of the solutions they develop. The theoretical framework integrates self‐determination theory and goal‐setting theory. The major findings of this study are that utilitarian user motives positively affect the utility of user‐developed innovations. In contrast, hedonic user motives drive solution novelty; the more an innovator is “in it for fun,” the more novel the solution developed. However, hedonic user motives also have an inverted U‐shaped relationship with solution utility. When the dominant motive for developing an innovation is the joy of the creative process rather than use value, the utility of what is developed is negatively affected. These findings are of research interest, and can be of significant practical interest to producers hoping to benefit from user‐developed innovations. For the first time, it has been possible to show that the adjustment of hedonic rewards, for example by means such as gamification, can affect the nature and utility of solutions individuals create.