Herstellung von Wettbewerb durch Übertragung der Alterungsrückstellung in der Privaten Krankenversicherung

The system of individual prospective aging reserve enables the insured persons irrespectively of their individual risk to change their Private Health Insurance. Besides the presentation of an implementation concept it is shown that there is no inducement to miscalculate the extent of the individual prospective aging reserve on purpose.     

Survey on Competing in Network Industries: Firm Strategies, Market Outcomes, and Policy Implications

We review the recent literature on market structure, firm strategies and public policy in network industries. In particular, we focus on the latest applied work, including case studies and empirical work as well as refinements of the established theoretical results. We group each set of results along two dimensions: Static (within-generation) and dynamic (across-generations).     

Determinants of market beta: the impacts of firm-specific accounting figures and market conditions

This article examines and extends research on the relation between the capital asset pricing model market beta, accounting risk measures and macroeconomic risk factors. We employ a beta decomposition approach that nests competing models with different business risk proxies and allows to frame cross-model comparison. Because model tests require estimated independent variables resulting in measurement error, we empirically estimate three comparable model specifications with instrumental variable estimators and for the first time provide thorough instrument diagnostics in this setting. Correcting for the heretofore neglected weak instruments problem we find that growth risk (i.e., the risk of firm sales variations that are inconsistent with the market wide trends), is the business risk that explains cross-sectional variations in market beta best.     

Social welfare effects of tax-benefit reform under endogenous participation and unemployment: an ordinal approach

This paper analyzes the social welfare effects of tax-benefit reforms in a framework integrating endogenous labor supply and unemployment. We adopt an ordinal approach to social welfare comparisons by searching for “socially desirable” reforms that would improve social welfare for an entire class of social welfare functions. In the model, there is a discrete distribution of individuals’ productivities and individuals are heterogeneous with respect to leisure preferences (or disability of work). Labor supply decisions are limited to the participation decision. Unemployment is modeled in a search and matching framework with individual wage bargaining. For the social welfare analysis, the model is calibrated for Switzerland. Starting from a situation with an unemployment benefit scheme, the introduction of in-work benefits is shown to be a “socially desirable” reform: it would be unanimously preferred to the current situation according to all social welfare functions based on the criteria of Pareto, anonymity, and the principle of transfers. This result holds for two different types of preference heterogeneity (leisure preferences or disability of work) and also for the case where job search effort cannot be monitored.     

The antecedents of open business models: an exploratory study of incumbent firms

Firms engage increasingly in open business models. While most research has previously focused on typologies or challenges of open business models, their specific antecedents have not been studied so far. We use data from eight open business model cases to explore this question and identify five main antecedents of open business models: (1) business model inconsistency, (2) need to create and capture new value, (3) previous experience with collaboration, (4) open business model patterns, and (5) industry convergence. Based on openness characteristics from the existing literature, we differentiate four basic types of open business models and develop an initial understanding of the relevance of the identified antecedents for each of them. We thereby provide first guidelines for practitioners in choosing the right form of business model openness for their company.     

Knowledge Management in Supply Chains: The Role of Explicit and Tacit Knowledge

We theorize, building on the knowledge‐based view and the theoretical distinction between explicit and tacit knowledge, that knowledge management capability across the supply chain manifests itself in explicit and tacit knowledge, which in turn effectuates supply chain performance. The model is tested with survey data from 195 small‐ and medium‐sized enterprises reporting on their primary supply chain. The results indicate that the supply chain's knowledge management capability manifests itself in both explicit and tacit knowledge, with the latter being influenced more strongly. Moreover, it was found that while both explicit and tacit knowledge influence supply chain performance, the latter exerts a significantly greater impact than the former. Exploratory post hoc analyses add robustness to these findings and investigate mechanisms inherent to the transformation of tacit into explicit knowledge. Overall, this research contributes to academic theory development in logistics and supply chain management by the dichotomization of knowledge types and the demonstration of their differential magnitude of effects, and to managerial practice by providing important guidance for logistics managers structuring their knowledge management efforts across supply chains.     

Does trade integration alter monetary policy transmission?

This paper explores the role of trade integration—or openness—for monetary policy transmission in a medium-scale new Keynesian model. Allowing for strategic complementarities in price setting, we highlight a new dimension of the exchange rate channel by which monetary policy directly impacts domestic inflation: a monetary contraction which appreciates the exchange rate lowers the local currency price of imported goods; this, in turn, induces domestic producers to lower their prices too. We pin down key parameters of the model by matching impulse responses obtained from a vector autoregression on time series for the US relative to the euro area. Our estimation procedure yields plausible parameter values and suggests a strong role for strategic complementarities. Counterfactual simulations show that openness alters monetary transmission significantly. While the contractionary effect of a monetary policy shock on inflation and output tends to increase in openness, we find that monetary policy's control over inflation increases, as the output decline which is necessary to bring about a given reduction of inflation is smaller in more open economies.     

Übernivellierung der Einnahmen aus der Grunderwerbsteuer im künftigen Finanzausgleich

Fiscal Equalisation in Germany provides substantial fiscal redistribution between federal and state and among state governments. However, there is also a degree of tax autonomy for the individual German states. Since 2007, states can adjust their local rate of the Real Estate Transfer Tax. However, if they keep the rate low, they may suffer revenue losses due to fiscal redistribution. The paper considers whether this effect will also be present in the new rules for fiscal equalization which will come in to effect in 2020.     

Does one model fit all? Exploring factors influencing the use of blogs,social networks,and wikis in the enterprise

Enterprise social media (ESM) have become increasingly widespread, but many intranet communities barely survive, miss their initially planned targets, or are even terminated. Research on technology acceptance can be a useful approach to improve adoption rates, but more empirical research needs to be conducted to examine factors driving the adoption of enterprise social media. To address this gap, we develop a model of individual ESM adoption, including technological and individual factors based on findings from collaboration and knowledge-sharing research. Because different ESM tools, such as blogs, social networks, and wikis, can be employed for fundamentally different uses, we explain differences between individual adoptions of the three technologies by identifying their uses and gratifications from the perspective of employees. The model is tested in three parallel studies, one for blogs, social networks, and wikis each, among employees of an international technology company in the pre-implementation phase. We find substantial differences between the factors influencing the intention to adopt the three applications. This provides the basis to employ the applications in a more effective way by considering organizational and employee needs.