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We propose a decision support approach, called DESMILS, to solve multi-item lot sizing problems with a large number of items by using single-item multiobjective lot sizing models. This approach for making lot sizing decisions considers multiple conflicting objective functions and incorporates a decision maker’s preferences to find the most preferred Pareto optimal solutions. DESMILS applies clustering, and items in one cluster are treated utilizing preferences that the decision maker has provided for a representative item of the cluster. Thus, the decision maker provides preferences to solve the single-item lot sizing problem for few items only and not for every item. |
This book is suited for the Entrepreneurship or Innovation course with an emphasis on Sustainability or for a course devoted entirely to Sustainability. |
This paper provides a behavioural and welfare analysis of an intermediary in biodiversity offset markets. These markets are characterised by high information requirements and transaction costs, threatening economic efficiency and even biodiversity outcomes. Specialised intermediaries facilitate trading by providing information and brokering services. By buying, holding and selling offset credits from storage, the intermediary can decrease both financial and ecological risks in the market. As a drawback, the intermediary may exploit market power upstream or downstream due to ecological features of the offset market. Intermediaries decrease the trading parties’ transaction costs by offering specialised information, reduce uncertainty, and decrease the costs of offsetting by increasing... |
In recent years, path dependence has gained increasing scientific attention in many disciplines, leading to various new concepts and notations, such as path creation or path plasticity. However, if mathematical arguments are used, they are based on the early works by Brian W. Arthur and Paul A. David, usually referring to the mathematical concept of ergodicity. We extend their mathematical framework and develop a graphical representation of systems that allows for a metaphorical discussion of system behaviors beyond the original cases, especially in evolving systems, and the inclusion of the recently developed concepts within path dependence. Visualizations are used to explain the definition and characteristics of seven types of path dependence: lock-in, path-breaking, path-furrowin... |
The liberalization of electricity markets has been dominated by conditions of oligopoly and market power, as shown in numerous studies in empirical literature on the supply side. However, regulators have used statistical measurements to monitor the extent of market power, making little reference to founded theoretical approaches. This paper provides a new contribution to the literature on the electricity market by presenting a theoretical and empirical model to construct competitive equilibrium, and estimating market power on both the supply and demand side of the day-ahead electricity market. |
Anything that can be automated, will be. The “magic” that digital technology has brought us — self-driving cars, Bitcoin, high frequency trading, internet of things, social networking, mass surveillance, the 2009 housing bubble — has not been considered ideologically. The Critique of Digital Capitalism identifies how digital technology has captured contemporary society in a reification of capitalist priorities. The theory proposed in this book is the description of how digital capitalism as an ideologically “invisible” framework is realized in technology. Written as a series of articles between 2003 and 2015, it provides a broad critical scope for understanding the inherent demands of capitalist protocols for expansion without constraint (regardless of social, legal or ethical limit... |
Data sensitivity and domain specificity challenges arise in reuse of machine learning applications. We identify four types of machine learning applications based on different reuse strategies: generic, distinctive, selective, and exclusive. We conclude with lessons for developing and deploying machine learning applications. |
Administrative labour market data for Germany do not contain detailed information on working hours. This poses a serious challenge for many empirical research questions. Between 2010 and 2014, however, it is possible to merge a supplementary data source containing information on working hours reported by employers for each job to the German Social Accident Insurances. One complicating factor is that employers were allowed to report actual working hours, contractual working hours or a full-time worker reference value, and it is not obvious from the data which re-porting scheme was actually used. In this report, we describe this supplementary data source and propose a correction procedure that maps all data entries so that they uniformly reflect contractual working time. |
Does the bank-firm human relationship still matter for SMEs The game-changing role of digitalization Noteworthy contributions have highlighted that human contact is a considerable factor in bank-firm relationships. It allows the acquisition of soft information, which alleviates information asymmetries and increases the use of bank debt. The advent of digital technologies in the information collection process open new horizons and change the role of personal contacts in bank-firm interactions, as entrepreneurs visit bank branches less frequently. This study uses a large sample of Italian SMEs from 2011 to 2020 and finds that the rapid increase and use of digital instruments have reduced the positive influence of physical closeness between banks and SMEs on the indebtedness levels. |
Various alternative solutions for sustainable last-mile parcel deliveries have been piloted and partially put into operation in Europe in the past decade. However, these delivery concepts have mainly been considered in inner-city areas. There are a few examples of the application of these concepts in peripheral urban areas, where new housing is being built to accommodate high population pressure. However, it is unclear whether the delivery preferences of residents in new neighbourhoods differ from those of the population average. This research conducted a case study in the western outskirts of Berlin, examining two newly built neighbourhoods and one existing residential area. |
