Globally correlated nominal fluctuations

Fluctuations in nominal variables—aggregate price levels and nominal interest rates—are documented to be substantially more synchronized across countries at business cycle frequencies than fluctuations in real output. A transparent mechanism accounting for this striking feature of the nominal environment is described and quantitatively evaluated. It is based on the interaction between (small) cross-country spillovers of shocks, Taylor rules, and domestic no-arbitrage conditions. The mechanism is robust to various parameterizations and extensions aligning the model with other important aspects of domestic and international fluctuations. Furthermore, its key features are consistent with cross-country forecasts from Consensus survey.     

Disparities in the financial performance of agricultural entities according to the legal form: the case of Slovakia

Financial management in agricultural enterprises is affected by a range of factors that are not present in other sectors. One of the factors that affect the performance of enterprises is the legal or organizational form of the business. In Slovakia, the specific structure of farms is different from that of almost any other member state of the European Union. The aim of this paper is to evaluate the disparities in the financial performance of agricultural enterprises according to the legal form. We analysed and compared two groups of agricultural entities, agricultural cooperatives and business companies, for the period from 2005 to 2014. Based on an analysis of the differences using mathematical and statistical methods, we can conclude that the legal forms are distinguished in all monitored parameters and our hypothesis on the differences in economic performance of agricultural entities according to legal form was confirmed.     

Selection of a Representative Value Function for Robust Ordinal Regression in Group Decision Making

In this paper, we introduce the concept of a representative value function in a group decision context. We extend recently proposed methods UTA^GMS-GROUP and UTADIS^GMS-GROUP with selection of a compromise and collective preference model which aggregates preferences of several decision makers (DMs) and represents all instances of preference models compatible with preference information elicited from DMs. The representative value function is built on results of robust ordinal regression, so its representativeness can be interpreted in terms of robustness concern. We propose a few procedures designed for multiple criteria ranking, choice, and sorting problems. The use of these procedures is conditioned by both satisfying different degrees of consistency of the preference information provided by all DMs, as well as by some properties of particular decision making situations. The representative value function is intended to help the DMs to understand the robust results, and to provide them with a compromise result in case of conflict between the DMs.     

The virtual is reality! On physical and virtual space in software firms’ knowledge formation

ABSTRACT

To understand how knowledge is created and exchanged, it is necessary to unwrap the role played by the physical and virtual spaces. The extant research offers interesting findings when it comes to the relationships among regional, institutional and organizational characteristics, innovation and firms’ abilities to link up to global knowledge sources. A focus on the role of informal and low-cost mechanisms, both regional and global, has extended our understanding of their role in knowledge formation. However, the physical space has dominated this literature to the detriment of the virtual space. The inclusion of the virtual space, both as an interaction space and as a different and complementary dimension, makes it possible to gain new insights into knowledge formation in a digitalizing world. Based on in-depth interviews with small- and medium-sized software companies in two urban agglomerations in Norway and Sweden, this paper explores the use of physical and virtual spaces. The findings show that these spaces interact and mutually influence each other. The world is not ‘flattening’ due to ongoing digitalization; moreover, urban agglomerations are still important places in which these spaces are optimized and unified.     

Resource Allocation in Higher Education in The Context of New Public Management

Abstract

The public administration framework New Public Management (NPM) has been applied to higher education systems in many western countries. The literature on these reforms reports on some positive effects but many critical voices can also be found. Even though NPM as a narrative unifies principles and measures under one roof, a detailed analysis shows that NPM principles fit differently for different tasks. Using a contingency approach, we show that, within the NPM narrative, two different higher education funding approaches exist, namely high-tech versus high-touch. Our study confirms the theoretical proposition that high-touch approaches match better with higher education domains. The use of contingency theory to classify NPM measures thus might be a promising way to further advance NPM theory and its practical application to topics as controversial as academic funding.     

Risikomanagement im After Sales Business

Zusammenfassung  Das After Sales Business ist in vielen Unternehmen sehr profitabel. Wer mit intelligenten Service- und Instandhaltungsangeboten Kunden binden kann, steigert Umsatz und Gewinn auch dann, wenn das eigentliche Produktgesch?ft schw?chelt. Dass im After Sales auch Risiken liegen, wird dabei h?ufig untersch?tzt oder nicht wahrgenommen. Systematisches Risikomanagement und gezielte Innovation schaffen Transparenz und geben neue Impulse. Dipl. Ing. ETH Cornelius Niemeyer Wissenschaftlicher Mitarbeiter am Lehrstuhl für Technologie- und Innovationsmanagement der ETH Zürich Prof. Dr. Roman Boutellier Professor für Technologie- und Innovationsmanagement am Departement für Management, Technologie und ?konomie (D-MTEC) der ETH Zürich     

Electrification of a city bus network—An optimization model for cost-effective placing of charging infrastructure and battery sizing of fast-charging electric bus systems

The deployment of battery-powered electric bus systems within the public transportation sector plays an important role in increasing energy efficiency and abating emissions. Rising attention is given to bus systems using fast charging technology. This concept requires a comprehensive infrastructure to equip bus routes with charging stations. The combination of charging infrastructure and bus batteries needs a reliable energy supply to maintain a stable bus operation even under demanding conditions. An efficient layout of the charging infrastructure and an appropriate dimensioning of battery capacity are crucial to minimize the total cost of ownership and to enable an energetically feasible bus operation. In this work, the central issue of jointly optimizing the charging infrastructure and battery capacity is described by a capacitated set covering problem. A mixed-integer linear optimization model is developed to determine the minimum number and location of required charging stations for a bus network as well as the adequate battery capacity for each bus line. The bus energy consumption for each route segment is determined based on individual route, bus type, traffic, and other information. Different scenarios are examined in order to assess the influence of charging power, climate, and changing operating conditions. The findings reveal significant differences in terms of required infrastructure. Moreover, the results highlight a trade-off between battery capacity and charging infrastructure under different operational and infrastructure conditions. This paper addresses upcoming challenges for transport authorities during the electrification process of the bus fleets and sharpens the focus on infrastructural issues related to the fast charging concept.     

High School Economics: Problems and Prospects

Asserting that the basic problem in high school economics is that we have not identified “what high school economics ought to be,” Warmke proceeds to spell out some of the specific obstacles hindering the development of more and better secondary level courses. He then discusses some of the more encouraging trends in research, teaching, teacher-training, materials development, and the like, and makes some cautious projections for the future.     

BEHAVIOR IN GROUP CONTESTS: A REVIEW OF EXPERIMENTAL RESEARCH

Group contests are ubiquitous. Some examples include warfare between countries, competition between political parties, team‐incentives within firms, and rent‐seeking. In order to succeed, members of the same group have incentives to cooperate with each other by expending effort. However, since effort is costly, each member also has an incentive to abstain from expending any effort and instead free ride on the efforts of other members. Contest theory predicts that the intensity of competition between groups and the amount of free riding within groups depend on the group size, sharing rule, group impact function, contest success function, and heterogeneity of players. We review experimental studies testing these theoretical predictions. Most studies find significant over‐expenditure of effort relative to the theory and significant heterogeneity of behavior within and between groups. Also, most studies find support for the comparative statics predictions of the theory (with the exception of the “group size paradox”). Finally, studies show that there are effective mechanisms that can promote within‐group cooperation and conflict resolution mechanisms that can de‐escalate and potentially eliminate between‐group conflict.