Marketing's role in successful product development

This paper argues, on the basis of an empirical study of leading US and UK manufacturing firms, that the marketing function has on balance a more important contribution to make in identifying and initiating product development options than the technical function. It is shown that from the manufacturer's viewpoint different types of developments revolve around: (i) old product development, which is concerned wth improving or updating existing product lines and (ii) new product development, which is concerned with new product lines. Within each of these two main types further important marketing‐related options are identified which widen the scope for product development far more than is commonly appreciated.     

Evaluation Bias and Incentive Structures in Bi- and Multilateral Aid Agencies

Evaluation is generally considered as an important tool to ensure the effective use of development aid, but it is itself subject to distortions. To derive institutional conditions conducive to effective evaluation, we develop a multi‐level principal‐agent model focusing on the interests of the different actors involved in the evaluation process. The model highlights two central problems: (i) the aid agencies’ conflicting objectives of transparency and self‐legitimization, and (ii) the potential collusion between the evaluator and the project manager. Evidence for the World Bank and different German donor agencies reveals concrete institutional requirements for a reduced evaluation bias and increased transparency.     

The impact of aid on growth revisited: Do donor motives matter?

The typical identification strategy in aid effectiveness studies assumes that donor motives do not influence the impact of aid on growth. We call this homogeneity assumption into question, constructing a model in which donor motives matter and testing the assumption empirically.     

WACC and free cash flows: A simple adjustment for capitalized interest costs

This paper shows how to value investment projects involving capitalization of interest costs by using the standard WACC method. Whenever capitalized interest costs do not immediately generate proportionate tax shields, one of the assumptions that justify the use of the after-tax weighted average cost-of-capital formula is violated. As an offset to this violation, the project's free cash flows have to be adjusted. We here derive and interpret a simple adjustment formula. A numerical illustration is provided.     

What drives the performance of convertible-bond funds?

This paper examines the performance of US mutual funds that invest primarily in convertible bonds. Multivariate cross-sectional analyses show a significant relation between a fund’s performance and its asset composition: the higher the difference in the percentage of assets invested in convertible bonds compared to the percentage invested in stocks, the higher the performance, on average. We show that this result can be explained by factors associated with investment opportunities in the convertible-bond market and trading strategies related to convertible arbitrage, as typically performed by hedge funds. Overall, convertible-bond fund performance measured by alpha is comparable to a passive investment in stocks, bonds, and convertible bonds. This performance is the result of weak selection skills and successful timing strategies related to convertible arbitrage.     

Reference Process Flows for Telecommunication Companies

The telecommunication market is experiencing substantial changes. New business models, innovative services, and technologies require reengineering, transformation, and process standardization. Enterprise Architecture Frameworks support the transformation by specifying methods, procedures, and reference models. With the Enhanced Telecom Operation Map (eTOM), the TM Forum offers an international de facto reference process framework, based on specific features and requirements of the telecommunication industry. However, this reference framework only offers a hierarchical collection of processes on different levels of abstraction; a control view in terms of a sequential ordering of tasks and hence a real process flow as well as an end-to-end view on the customer are missing. In this paper, we extend the eTOM reference model by reference process flows, in which we abstract and generalize the knowledge about processes in telecommunication companies. With reference process flows, we aim to assist companies in achieving a structured and transparent re-structuring and re-design of their processes. We demonstrate the applicability and usefulness of our reference process flows in two case studies, and evaluate them by means of criteria for reference model evaluation. Our reference process flows have been accepted as a standard by the TM Forum and published as part of eTOM version 9. We further elaborate on those components of our approach which can be applied outside the telecommunication industry.     

Monetäre Anreize zur Steuerung der Ladelast von Elektrofahrzeugen – eine modellgestützte Optimierung

Electric mobility is supposed to contribute to climate policy targets by reducing CO₂-emissions in the transportation sector. Increasing penetration rates of electric vehicles (EV) can lead to new challenges in the electricity sector, especially with regard to local distribution networks. Thus the management of charging loads is discussed as a key issue in energy economics. Due to their long parking times, high electricity and power demand, EV seem to be predestined for load management. Monetary incentives as dynamic pricing can be suitable for that: They reflect the current supply situation, pass the information to the consumers and can thus lead to a corresponding charging behaviour. In this article we analyse this interaction between dynamic pricing and charging loads. For this reason we have developed the optimization model DS-Opt+. It models a total number of 4,000 households in two residential areas of a major city with regard to its electricity demand, its mobility behaviour and its equipment of photovoltaic systems. Four different pricing models are tested for their effects on charging behaviour and thus the total load of the residential area. The results illustrate that only fairly high penetration rates of EV lead to remarkably higher electricity demand and require some load management. The tested dynamic pricing models are suitable for influencing charging loads; load-based tariffs are best in achieving a balanced load curve. In our analysis uncontrolled charging strategies are superior regarding a balanced load curve than controlled strategies by time-varying tariffs. Our results lead to several implications relevant for the energy industry and further research.     

Accounting education for professionals in Germany — current state and new challenges

In comparison to other countries, the requirements on the education of professional auditors in Germany have been considered to be the toughest in the world. However, German professionals risk losing this position since there are countries which seem to adapt more quickly and appropriately to changes in the accounting environment.The first part of the paper provides a review of the current state of the education for qualified auditors in Germany with special reference to the according EU-Directives and IFAC-Rules. It is shown that there are various issues which have to be accounted for in order to meet the challenges of the future.The remainder of the paper focuses on challenges due to changes in the accounting and auditing environment, on challenges due to an enlargement of the scope of statutory audit and — finally — on challenges due to the need for diversification from auditing to assurance services.     

Climate policy and interest Groups—A Public choice analysis

Climate policy is particularly prone to the activities of interest groups. How have these shaped the development of policy targets and instruments?