Publications des institutions partenaires
Skill heterogeneity in startups and its development over time
We study how startup teams are assembled in terms of team member human capital characteristics. To this end, we derive a statistically motivated benchmark for new venture team heterogeneity in terms of observed team member characteristics to generate stylized facts about team member diversity at startup and how it evolves as the new venture matures. We use the population of Danish...
Institution partenaire
English / 01/01/2015
Education over the life-cycle: Class size effects, returns to education, and wage trajectories after job loss
Institution partenaire
English / 01/01/2015
Accruals and future performance: can it be attributed to risk?
We decompose broad-based measures of accruals into firm-specific and related-firm components. We find that the negative relation between accruals and future firm performance is almost entirely attributable to the firm-specific component. Standard risk-based explanations are hard to reconcile with this fact. To the extent expected returns have a common component spanning related firms...
Institution partenaire
English / 01/01/2015
Composition of junior research groups and PhD completion rate: disciplinary differences and policy implications
Institution partenaire
English / 01/01/2015
Entega’s profitable new customer acquisition on online price comparison sites
Market liberalization of the German household electricity market has led to an excessive number of competitors (1,150 electricity providers) and volatile price dynamics on price comparison sites. To date, providers that are struggling to achieve a top ranking on price comparison sites do not appear to implement a consistent or elaborate strategy for attracting customers. We developed...
Institution partenaire
English / 01/01/2015
Voluntary market payments: underlying motives, success drivers and success potentials
The authors provide an overview about research conducted in the area of four different voluntary market payment mechanisms, namely tipping, pay-what-you-want, donations, and gift giving. The authors identify three different research streams: the first stream of research investigates product and consumer characteristics that drive success measures of voluntary payment mechanisms, the...
Institution partenaire
English / 01/01/2015
Robust stochastic stability
A strategy profile of a game is called robustly stochastically stable if it is stochastically stable for a given behavioral model independently of the specification of revision opportunities and tie-breaking assumptions in the dynamics. We provide a simple radius–coradius result for robust stochastic stability and examine several applications. For the logit-response dynamics, the...
Institution partenaire
English / 01/01/2015
Intellectual property rights in a quality-ladder model with persistent leadership
This paper analyzes the effects of intellectual property rights in a quality-ladder model of endogenous growth in which incumbent firms preemptively innovate in order to keep their position of leadership. Unlike in models with leapfrogging, granting forward protection, and imposing a non-obviousness requirement reduces growth. In the main case where entrants and incumbents have free...
Institution partenaire
English / 01/01/2015
Sharing high growth across generations: Pensions and demographic transition in China
We analyze intergenerational redistribution in emerging economies with the aid of an overlapping generations model with endogenous labor supply. Growth is initially high but declines over time. A version of the model calibrated to China is used to analyze the welfare effects of alternative pension reforms. Although a reform of the current system is necessary to achieve financial...
Institution partenaire
English / 01/01/2015
Fair wages and effort: Evidence from a field experiment
The presence of workers who reciprocate higher wages with greater effort can have important consequences for firms and labor markets. Knowledge about the extent and determinants of reciprocal effort choices is, however, incomplete. We investigate the role of fairness perceptions and social preferences in a field experiment in which workers were hired for a one-time job. We show that...
Institution partenaire
English / 01/01/2015
How do informal agreements and revision shape contractual reference points?
The notion of contracts as reference points provides the basis for a deeper understanding of important phenomena such as the employment contract, vertical integration, firm scope, authority and delegation. Previous experiments lend support to this notion but they ignore realistic aspects of trading relationships such as informal agreements and ex post renegotiation or revision. Here...
Institution partenaire
English / 01/01/2015
Legitimacy, communication and leadership in the turnaround game
We study the effectiveness of leaders for inducing coordinated organizational change to a more efficient equilibrium, i.e., a turnaround. We compare communication from leaders to incentive increases and also compare the effectiveness of randomly selected and elected leaders. While all interventions yield shifts to more efficient equilibria, communication from leaders has a greater...
Institution partenaire
English / 01/01/2015
Offshoring and directed technical change
We study the implications of offshoring on innovation, technology, and wage inequality in a Ricardian model with directed technical change. Profit maximization determines both the extent of off-shoring and the direction of technological progress. A fall in the offshoring cost induces technical change with an ambiguous factor bias. When the initial cost of offshoring is high, an...
Institution partenaire
English / 01/01/2015
Efficient learning mechanisms hold in the social domain and are implemented in the medial prefrontal cortex
When we are learning to associate novel cues with outcomes, learning is more efficient if we take advantage of previously learned associations and thereby avoid redundant learning. The blocking effect represents this sort of efficiency mechanism and refers to the phenomenon in which a novel stimulus is blocked from learning when it is associated with a fully predicted outcome....
Institution partenaire
English / 01/01/2015
The consequences of hiring lower-wage workers in an incomplete-contract environment
Firms frequently attempt to increase profits by replacing some existing workers with new lower-wage workers. However, this strategy may be ineffective in an incomplete-contract environment because the new workers may provide lower effort in response to their lower wages and hiring new lower-wage workers may damage the remaining original workers' reciprocal relationship with the...
Institution partenaire
English / 01/01/2015
Mixed equilibrium in a pure location game: the case of n≥4 firms
The Hotelling game of pure location allows interpretations in spatial competition, political theory, and strategic forecasting. In this paper, the doubly symmetric mixed-strategy equilibrium for n≥4 firms is characterized as the solution of a well-behaved boundary value problem. The analysis suggests that, in contrast to the cases n=3 and n→∞, the equilibrium for a finite number of n...
Institution partenaire
English / 01/01/2015
Dopaminergic and serotonergic modulation of anterior insular and orbitofrontal cortex function in risky decision making
Systemic manipulations have shown that dopamine and serotonin systems are involved in risky decision making. However, how they work within the regions that implement risky choices remains unclear. The present study investigated the role of dopamine and serotonin in the rat anterior insular cortex (AIC) and orbitofrontal cortex (OFC), which make different contributions to risky...
Institution partenaire
English / 01/01/2015
Sensory perceptions of individuals exposed to the static field of a 7T MRI: a controlled blinded study
PURPOSE: To determine the subjective experience of subjects undergoing 7T magnetic resonance imaging (MRI) compared to a mock scanner with no magnetic field.
METHODS AND MATERIALS: In all, 44 healthy subjects were exposed to both the B0 field of a 7T whole-body MRI and a realistic mock scanner with no magnetic field. Subjects were blinded to the actual field strength and no...
Institution partenaire
English / 01/01/2015
Perinatal focal brain injury: scope and limits of plasticity for language functions
Institution partenaire
English / 01/01/2015
CT-Based Assessment of Relative Soft-Tissue Alteration in Different Types of Ancient Mummies
Institution partenaire
English / 01/01/2015
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