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Mobile number portability in Europe

This paper examines the causes and effects of mobile number portability (MNP) and provides a survey of its implementation in Europe. It first examines the competitive effects and costs of introducing MNP. Next, it discusses how to charge for MNP. It argues that a price cap regime starting from the average cost of porting is likely to provide appropriate incentives. Finally, it…

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English / 12/06/2006

Investitionen in neue Energietechnologien: Hemmnisfaktor Finanzierung

Probleme der Finanzierung sind für die Marktdiffusion innovativer Energietechnologien ebenso wichtig wie ihre technischen Eigenschaften oder der erwartete Nutzen aus der Technologieanwendung. Welche Rolle spielt dabei die Eigentümerstruktur des Innovators? Welchen Einfluss hat die Finanzierungsform des Investitionsvorhabens—und damit das finanzielle Risiko—auf die Attraktivität einer…

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English / 01/06/2006

Evaluitis - Eine Neue Krankheit

“Evaluitis” - i.e. ex post assessments of organizations and persons - has become a rapidly spreading disease. In addition to the well-known costs imposed on evaluees and evaluators, additional significant costs are commonly disregarded: incentives are distorted, ossification is induced and the decision approach is wrongly conceived. As a result, evaluations are used too often and too…

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English / 01/06/2006

Pareto-Improving Social Security Reform When Financial Markets Are Incomplete!?

This paper studies an overlapping generations model with stochastic production and incomplete markets to assess whether the introduction of an unfunded social security system leads to a Pareto improvement. When returns to capital and wages are imperfectly correlated a system that endows retired households with claims to labor income enhances the sharing of aggregate risk between…

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English / 01/06/2006

Testing the Predictions of Decision Theories in a Natural Experiment When Half a Million Is at Stake

In the television show Affari Tuoi an individual faces a sequence of binary choicesnbetween a risky lottery with equiprobable prizes of up to half a million euros and anmonetary amount for certain. The decisions of 114 show participants are used to test the predictions of ten decision theories: risk neutrality, expected utility theory, fanning-out hypothesis (weighted utility theory…

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English / 01/06/2006

Introducing Social Norms in Game Theory

This paper explicitly introduces norms in games, assuming that they shape (some) players’ utility and beliefs. People feel badly when they deviate from anbinding norm, and the less other players deviate, the more badly they feel.nFurther, people anger at transgressors and get pleasure from punishing them. Inthen study how social norms and emotions affect cooperation, coordination,…

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English / 01/06/2006

The Role of Equality and Efficiency in Social Preferences

Engelmann and Strobel (AER 2004) question the relevance of inequity aversionnin simple dictator game experiments claiming that a combination of a preference fornefficiency and a Rawlsian motive for helping the least well-off is more important thanninequity aversion. We show that these results are partly based on a strong subject poolneffect. The participants of the E&S…

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English / 01/06/2006

Foreign Direct Investment and R&D offshoring

We analyze a two-country model of Foreign Direct Investment (FDI). Two firms, each of which is originally situated in only one of the two countries, first decide whether to build a plant in the foreign country. Then, they decide whether to relocate R&D activities. Finally, they engage in product-market competition. Our main points are: first, FDI liberalization causes a…

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English / 01/06/2006

Emotion as mediators of the relations between perceived supervisor support and psychological hardiness on employee cynicism

In this study we explore whether emotion experienced at work mediates the relationships between perceived supervisor support, psychological hardiness, and employee cynicism. Data were collected from employees working at a medical technology company located in Switzerland. Mediational analyses showed that employees' positive and negative emotions experienced amidst an…

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English / 01/06/2006

Is there Evidence of Pessimism and Doubt in Subjective Distributions? Implications for the Equity Premium Puzzle

Abel (2002) shows that pessimism and doubt in the subjective distribution of the growth rate of consumption reduce the equity premium puzzle. We quantify the amount of pessimism and doubt in survey data on US consumption and income. Individual forecasters are in fact pessimistic, but show marked overconfidence rather than doubt. However, the implications for Abel's model depend…

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English / 01/06/2006

Autocorrelation, bias and fat tails: Are hedge funds really attractive investments?

In the literature, hedge funds often are evaluated by Markowitz portfolio selection theory, under which hedge funds appear to be a remarkable opportunity, seeing as they are characterized by low correlations to stock and bond markets and therefore offer the chance of better portfolio diversification. However, this approach neglects three problems concerning the returns of this…

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English / 01/06/2006

Theories of Viability: a Comparison

Given the growing complexities in the environments of organizations and societies, the concept of viability has become ever more important as an orientator for those in charge. The Systems Approach has bred powerful theories of viability, which can help actors in the socio-technical domain to cope with complexity. The two main manifestations of the Theory of Viability are Living…

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English / 01/06/2006

Statistical Assistance for Programme Selection - For a Better Targeting of Active Labour Market Policies in Switzerland

In this paper the motivation and various concepts of statistical systems for assisting case workers in assigning unemployed persons to active labour market programmes (ALMP) are examined and the particular implementation of such a statistical system in Switzerland, which was introduced in the form of a randomized pilot study, is discussed.

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English / 15/05/2006

Harmonic sequence paradox

Informal evidence suggests that individuals are willing to pay only a finite and, typically, very low price for a specific lottery that converges to an infinite payment with probability one. The established decision theories (expected value, expected utility theory, cumulative prospect theory) cannot satisfactorily explain this low willingness to pay. The presented paradox…

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English / 01/05/2006

Models and Anti-Models: The Structure of Payoff-Dependent Social Learning

We conducted an experiment to describe how social learners use information about the relation between payoffs and behavior. Players chose between twontechnologies repeatedly. Payoffs were random, but one technology was better because its expected payoff was higher. Players were divided into two groups:n1) individual learners who knew their realized payoffs after each choice andn2)…

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English / 01/05/2006

The Effect of Income on Positive and Negative Subjective Well-Being

Increasing evidence from the empirical economic and psychological literature suggests that positive and negative well-being are more than opposite ends of the same phenomenon. Two separate measures of the dependent variable may be needed when analyzing the determinants of subjective well-being. We argue that this conclusion reflects in part the use of too restrictive econometric…

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English / 01/05/2006

Exploring strategy implementation consistency over time: The moderating effects of industry velocity and firm performance

In this paper we empirically investigate the temporal development of a firm's strategy implementation consistency (SIC), i.e. the alignment between firms' resource allocation decisions (RAD) and their articulated corporate concept (Noda and Bower, 1996; Burgelman and Grove, 1996; Love et al., 2002; Mintzberg, 1978). Doing so, we test whether (1) SIC is more likely to…

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English / 01/05/2006

The Quest for Ecological Sustainability: A Multi-level Issue

The issue of ecological sustainability has been addressed in various contexts - local, regional and world-wide. This paper postulates that sustainability can only be achieved if actors at multiple levels cooperate toward the vision of a sustainable world. For this purpose, the structure of a model is presented, which shows how the efforts for sustainability can be organized in a more…

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English / 18/04/2006

Violations of betweenness or random errors?

A betweenness axiom states that if A and B are equally good then a mixture of A and B is equally good as well. This note demonstrates that the violations of the betweenness axiom documented in several experimental studies can be alternatively attributed to the effect of random errors.

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English / 01/04/2006

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