Stromspeicher für die „Energiewende“ – eine akteursbasierte Analyse der zusätzlichen Speicherkosten

Political targets for implementing the German “energy turnaround” aiming at the ambitious extension of renewable energies to generate electricity. However, a majority of the renewable supply is provided by intermittent sources, e.g. wind and solar power. For balancing the increasing supply fluctuations additional storage options are claimed beside of an enforced grid infrastructure and a more flexible demand side. Despite of the political guidelines the economics of additional flexibility measures has to be considered. For this paper we analyse the costs of large scale stationary battery storages to be operated in wholesale markets and transmission grid level. By deriving a key figure based on a life-cycle cost approach, we are able to evaluate the additional costs of electricity of selected battery technologies (lead-acid, lithium ion, sodium sulphur, redox-flow). Moreover, current and valid parameters of the cost analysis are received by scientific and industrial stakeholders of battery systems via online survey and face-to-face interviews. According to the stakeholder estimation a nationwide operation of stationary battery storages will be established at wholesale and transmission grid level until the year 2030. The life-cycle cost analysis, which also includes estimated future cost reductions, shows that lead-acid batteries remain the cost-efficient technology, assuming about 100 storage cycles p.a. In addition, a sensitivity analysis reveals the impact of increasing annual storage cycles as well as the achievable cost reduction by economies-of-scales of the power unit of the storage system.     

Managing safety risks in helicopter maritime operations

Nowadays, helicopters have been used in maritime transportation to serve offshore platforms. This paper outlines methodology for assessing safety risks by operating in the vicinity of helidecks. During each flight, decisions must be made regarding the events that involve interactions between the four safety risk elements – the pilot in command, the aircraft, the environment and the operation. This paper evaluates helicopter crash statistics based on region and flight phase. Data collected were used for developing methodology for computing the helicopter impact frequency into facility of interest. The analysis for helicopter impact frequency calculations is based on number of operations, crash rate, frequency, average length of flight and crash area. Furthermore, the conclusion was defined based on future measurements for helicopter accidents mitigation or reduction. The presented paper contributes to safety risk assessment in helicopter maritime operations.     

Adaptation and Mitigation in Long-term Climate Policy

The paper analytically explores the optimal allocation of investments into mitigation and environmental adaptation against climate change damages at a macroeconomic level. The economic-environmental model is formulated as a social planner problem where adaptation and abatement investments are separate decision variables. The existence of a unique steady state is proven. A comparative static analysis of optimal investments leads to essential implications for associated long-term environmental policies. It is shown that the optimal policy mix between adaptation and mitigation is lower for countries with higher economic efficiency for all applicable parameter ranges. Data calibration and numerical simulations are provided to estimate practical validity of theoretical outcomes.     

Does Say‐on‐Pay Matter? Evidence from Say‐on‐Pay Proposals in the United States

We investigate the effect of say‐on‐pay (SOP) proposals on changes in executive and director compensation. Relative to non‐SOP firms, SOP firms’ total compensation to CEOs does not significantly change after the proposal. However, the mix of compensation does change—companies move away from using cash compensation toward more incentive compensation, offsetting the reduction in bonus. Further, the mix of compensation of non‐CEO executives changes similarly to that of CEOs. Compensation to directors of SOP firms increases less than non‐SOP firms. Firms whose CEOs are well compensated, especially with cash‐based compensation, are most likely to receive a proposal.     

Progressive taxes and firm births

Tax reform proposals in the spirit of the “flat tax” model typically aim to reduce three parameters: the average tax burden, the progressivity of the tax schedule, and the complexity of the tax code. We explore the implications of changes in these parameters for entrepreneurial activity, measured by counts of firm births. The Swiss fiscal system offers sufficient intra-national variation in tax codes to allow us to estimate such effects with considerable precision. We find that high average taxes and complicated tax codes depress firm birth rates, while tax progressivity per se promotes firm births. The latter result supports the existence of an insurance effect from progressive corporate income taxes for risk-averse entrepreneurs. However, implied elasticities with respect to the level and complexity of corporate taxes are an order of magnitude larger than elasticities with respect to the progressivity of tax schedules.     

Utilization-focused performance reporting

How best to define performance measures is a much-debated issue. Mismatches between goals and indicators can lead to distortions that undermine impact-oriented steering. This article presents a model of goal and indicator development and explains its applicability, benefits and limitations.     

An Empirical Investigation of Brand Equity: A Cross-Country Validation Analysis

ABSTRACT

The purpose of this article is to propose and test a model in order to better understand brand equity. The goal of this research is to identify the drivers and determine how they influence brand equity performance in the researched industry in order to develop a more effective brand strategy. Quantitative data collected are used to test a model of brand value in the context of the food industry. The findings of this research provided evidence that the customer-based brand equity model can be applied to the food industry context and be used to guide marketing activities internationally. Brand awareness has a positive influence on brand associations and perceived quality. Brand associations have a positive influence on brand loyalty. Finally, brand loyalty, perceived quality, and brand associations all have a positive effect on brand equity. This study contributes to the scarce international brand equity literature by testing the proposed model using data from a sample of consumers in two European countries.     

Adventures,auctions and aspirations: Illuminating shifts,tensions and contradictions in consumers' leisure shopping experiences

Drawing upon the work of Simmel ([1907–1911] 1971) and other socioculturally oriented theoreticians (e.g. Campbell 1987; Thompson et al. 1994), this paper illuminates the composite and dynamic character of leisure shopping. Using three overarching themes – the adventure, the auction and the aspiration – the paper illustrates that leisure shopping experiences comprise a synthesis of opposites, involving dynamic shifts between for example spontaneity and control, delight and disappointment, dreams and fantasies as well as rational calculations and purposive planning. Leisure shopping is thus described as a form of rational recreation (Lash and Urry 2002), where consumers seek pleasure in highly rationalized ways.