Geschäftsprozesskostenrechnung in einem Leasing-Unternehmen

Zur Verbesserung der Wertsch?pfung organisieren sich immer mehr Unternehmen nach Gesch?ftsprozessen. Dies geht h?ufig mit einer Gesch?ftsprozessoptimierung einher, um die Abl?ufe effizient zu gestalten.     

Factors Affecting Technical Efficiency among Coffee Farmers in Côte d’Ivoire: Evidence from the Centre West Region

This paper presents measures of technical efficiency for a sample of 81 peasant farmers in the low‐income region of Côte d’Ivoire. DEA techniques were used to compute farm‐level technical efficiency (TE) measures. The analysis reveals average levels of technical efficiency equal to 36 per cent and 47 per cent respectively for the CCR ( Charnes et al., 1978 ) and BCC ( Banker et al., 1984 ) models. These results suggest that substantial gains in output and/or decreases in cost can be attained given existing technology. In a second step analysis, two‐limit Tobit regression techniques were used to examine the relationship between TE and various farm/farmer characteristics. From a policy point of view, an important conclusion stemming from the analysis of our sample is that family size, membership to farmer's club or association and the origin of the farmer are the variables found to be most promising for action. The analysis suggests that policymakers should foster the development of the formal farmers’ club or association by building the capacity of the farmers. Our analysis also supports the argument for public sector involvement in the provision of information on labour force management to peasant farmers as a means to improve efficiency levels, and thus household incomes.     

Consumer versus Expert Hazard Identification: A Mental Models Study of Mutation‐bred Rice

Novel foods have been the object of intense public debate in recent years. Despite efforts to communicate the outcomes of risk assessments to consumers, public confidence in the management of potential risks has been low. Various reasons behind this have been identified, chiefly a disagreement between technical experts and consumers over the nature of the hazards on which risk assessments should focus, and perceptions of insufficient openness about uncertainties in risk assessment. Whilst previous research has almost exclusively focused on genetically modified foods, the present paper investigates plant varieties developed by means of mutation breeding, a less‐debated class of novel foods. Two studies were conducted that investigated the mental models of experts and laypeople. The results revealed that the mental models of both groups differed in terms of scope, depth and the role of uncertainty. Furthermore, a number of misconceptions became apparent in the study of laypeople's mental models, often related to the regulatory system governing risk assessments of novel foods. Critical issue are outlined and communication needs are discussed.     

Modularity and intellectual property protection

Modularity is a means of partitioning technical knowledge about a product or process. When state‐sanctioned intellectual property (IP) rights are ineffective or costly to enforce, modularity can be used to hide information and thus protect IP. We investigate the impact of modularity on IP protection by formally modeling the threat of expropriation by agents. The principal has three options to address this threat: trust, licensing, and paying agents to stay loyal. We show how the principal can influence the value of these options by modularizing the system and by hiring clans of agents, thus exploiting relationships among them. Extensions address screening and signaling in hiring, the effects of an imperfect legal system, and social norms of fairness. We illustrate our arguments with examples from practice.© 2014 The Authors. Strategic Management Journal published by John Wiley & Sons Ltd.     

The subjective well-being of workfare participants: insights from a day reconstruction survey

In this article, we shed more light on the subjective well-being of workfare participants and compare it to the well-being of unemployed and employed workers. We use data from a self-conducted survey among participants in workfare schemes in Germany. We examine two subdimensions of subjective well-being – life satisfaction and emotional well-being – separately to obtain a more comprehensive view of the subjective well-being of workfare participants. Our results show that the life satisfaction of people in this group is between that of employed and unemployed people. In contrast, their emotional well-being is the highest of these three groups.     

Early-Life Circumstances Predict Measures of Trust among Adults: Evidence from Hunger Episodes in Post-War Germany

Can a major shock in childhood permanently shape trust? We consider a hunger episode in Germany after World War II, and we construct a measure of hunger exposure from official data on caloric rations set monthly by the occupying forces, providing regional and temporal variations. We correlate hunger exposure with measures of trust using data from a nationally representative sample of the German population. We show that individuals exposed to low caloric rations in childhood have significantly lower levels of trust as adults. This finding highlights that early-life experiences can have long-term effects in domains other than health, where such effects are well documented.     

Liquidity supply and adverse selection in a pure limit order book market

This paper analyzes adverse selection costs and liquidity supply in a pure open limit order book market. We relax assumptions of the Glosten/Såndas modeling framework regarding marginal zero profit order book equilibrium and the parametric market order size distribution. We show that using average zero profit conditions considerably increases the empirical performance while a nonparametric specification for market order size combined with marginal zero profit conditions does not. A cross sectional analysis corroborates the finding that adverse selection costs are more severe for smaller capitalized stocks. We also find additional support for one of the central hypothesis put forth by the theory of limit order book markets, which states that liquidity supply and adverse selection costs are inversely related. Furthermore, adverse selection cost estimates based on our structural model and those obtained using popular model-free methods are strongly correlated. This indicates the robustness of the theory-based approach.     

Extracting cover sets from free fuzzy sorting data

Assignment of items to multiple categories requires suitable statistical methods. The present paper provides a new approach to solve this task. The concept of fuzzy sets is extended to cover sets (sets of overlapping clusters) in a simple manner introducing a vector of item membership sums. The application of the new concept is exemplified by modifying the fuzzy cluster analysis algorithm of Kaufman and Rousseeuw (Finding groups in data: an introduction to cluster analysis, 1990) to cover set cluster analysis appropriately. Wide equivalence of the numerical problems is demonstrated from Lagrange multipliers and Karush-Kuhn-Tucker conditions. Additionally, some extensions are introduced to the algorithm to improve its behavior for suboptimal large or small numbers of clusters. The adapted algorithm in most cases reproduces single sortings for correct numbers of clusters. Two applications to empirical free fuzzy sorting data sets are provided. Limitations of the algorithm are discussed.     

Union density and determinants of union membership in 18 EU countries: evidence from micro data, 2002/031

Using representative individual-level data from the first round of the European Social Survey fielded in 2002/03, this article provides an empirical analysis of unionisation in 18 countries of the EU. We show that union density varies considerably in Europe, ranging from 84 per cent in Denmark to 11 per cent in Portugal. Estimating identical models for each country, we find that individuals’ probability of union membership is significantly affected by their personal characteristics, their attitudes and the characteristics of their workplace, whereas social factors seem to play a minor role. The presence of a union at the workplace and employees’ attitudes concerning strong unions are the two variables most strongly associated with unionisation.