infonet-economy

Die Uni Zürich ist die forschungsstärkste VWL-Hochschule im deutschsprachigen Raum und peilt nun die Weltspitze an. Direktor Rainer Winkelmann über die Zukunft und die Probleme der Zunft.

Based on data from 7 , 350 Cameroonian companies created between 19 90 and 2008, we study the link between the characteristics of indebtedness for young companies during their creation and survival period of up to three years, from three to five years , and beyond five years. We complement our quantitative analysis with semi - dire ctive interviews of Cameroonian entrepreneurs to...

The business model innovation construct is gaining substantive attention in management literature, emphasizing its role for creating and sustaining a firm’s competitive advantage in rapidly changing business environments. However, little advancement has been made toward a holistic, theory-based understanding of the nature of business model innovation, along with its context-specific...

This paper considers all-pay contests in which the relationship between bids and allocations reflects a small amount of noise. Prior work had focused on one particular equilibrium. However, there may be other equilibria. To address this issue, we introduce a new and intuitive measure for the proximity to the all-pay auction. This allows, in particular, to provide simple conditions...

This paper introduces a nonlinear shrinkage estimator of the covariance matrix that does not require recovering the population eigenvalues first. We estimate the sample spectral density and its Hilbert transform directly by smoothing the sample eigenvalues with a variable-bandwidth kernel. Relative to numerically inverting the so-called QuEST function, the main advantages of direct...

This paper provides new evidence on gender bias in teaching evaluations. We exploit a quasi-experimental dataset of 19,952 student evaluations of university faculty in a context where students are randomly allocated to female or male instructors. Despite the fact that neither students' grades nor self-study hours are affected by the instructor's gender, we find that women...

We assess how regional rail service affects air pollution in Germany, where rail service is procured in auctions or negotiations. We argue that the procurement mode is plausibly exogenous, and show that auctions deliver stronger rail service growth than negotiations. Instrumenting rail service growth with procurement mode, we find that increasing rail service by 10% reduces carbon...

Der Erfolg von Unternehmen wie Microsoft und Amazon hat zur Marktdominanz einzelner Anbieter geführt und deren Besitzer immens reich gemacht. Ein Kommentar von David Dorn.