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Approximations and generalized Newton methods

We present approaches to (generalized) Newton methods in the framework of generalized equations $0\in f(x)+M(x)$, where $f$ is a function and $M$ is a multifunction. The Newton steps are defined by approximations $\hat f$ of $f$ and the solutions of $0\in \hat{f}(x)+M(x)$. We give a unified view of the local convergence analysis of such methods by connecting a certain type of…

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English / 11/09/2017

Internationalization strategies of emerging market banks: challenges and opportunities

The greatly improved economic fundamentals of the major emerging economies over the last decade have propelled several emerging banks into the ranks of the world’s largest. Despite their importance in the global economy, the internationalization of emerging market banks remains an understudied phenomenon. This article examines factors that may influence the internationalization…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Adopting a life cycle perspective through ISO14001: a game changer: how to increase your company’s performance using ecodesign

The ISO 14001 standard was extensively amended in 2015. The new version of the standard suggests a closer alignment of traditional environmental management systems with the footprinting approaches (Life Cycle Thinking) adopted by many corporations in recent years to assess the environmental performance of products and companies. As a result, a new link is also established with…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Balancing control and autonomy in communities of practice: governance patterns and knowledge in nine multinationals

This research aims to uncover three forms of communities of practice (CoPs), based on a set of six governance mechanisms. The focus is on the specific question of how organizations combine different governance mechanisms to balance autonomy and control in the management (steering) of CoPs. This paper is based on a study of 16 CoPs in nine multinational organizations.

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Small business activity and knowledge exchange in informal interfirm networks

This article explores knowledge search strategies of technology-based small firms (TBSFs) and the role that informal and proximate relationships play in the development of knowledge networks, through which knowledge exchange occurs. Drawing on interfirm relationship and social network theory, we contend that TBSFs participate in informal networks to exchange technology, market and…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Not merely a matter of drawing arrows: the empirical consequences of measurement model specification and recommendations for practice

Understanding measurement model specification is especially important for hospitality research due to its cross-disciplinary nature and the prevalence of measures used in the field which are often central to the formative versus reflective debate (e.g., SERVQUAL, socioeconomic status). The current study contributes to this topic by providing empirically based prescriptive advice to…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Hotel property performance: : the role of strategic management accounting

In the current study, we contend that to enhance their competitiveness and performance, hotel properties need to develop and implement internal policies and procedures such as strategic management accounting that are consistent with their business strategies and account for changing competitive demands. We employ a sample composed of 80 hotel properties to investigate the key…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

The matter of encumbrance: : how management structure affects hotel value

Hotel owners have two fundamental concerns: the financial operating performance of their asset and its selling price. While they often contract a hotel management company to operate the hotel through a lease or management agreement, common industry perception holds that such encumbrance decreases the sales price of hotel real estate assets. This implies that owners who outsource the…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Optimal prevention for multiple risks

This paper analyzes optimal prevention in a situation of multiple, possibly correlated risks. We focus on probability reduction (self-protection) so that correlation becomes endogenous. If prevention concerns only one risk, introducing a second exogenous risk increases the level of prevention expenditures, even if correlation is negative. If prevention expenditures may be invested…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 04/09/2017

Natural City Growth in the People's Republic of China

Egger, Peter; Püschel, Nicole; Loumeau, Gabriel

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English, Deutsch / 01/09/2017

Contests with small noise and the robustness of the all-pay auction

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…

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English / 01/09/2017

The limits to moral erosion in markets: social norms and the replacement excuse

This paper studies the impact of a key feature of competitive markets on moral behavior: the possibility that a competitor will step in and conclude the deal if a conscientious market actor forgoes a profitable business opportunity for ethical reasons. We study experimentally whether people employ the argument "if I don’t do it, someone else will" to justify taking a…

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English / 01/09/2017

Portfolio Diversification and Systemic Risk in Interbank Networks

The recent credit crisis of 2007/08 has raised a debate about the so-called knife-edge properties of financial markets. The paper contributes to the debate shedding light on the controversial relation between risk-diversification and financial stability. We model a financial network where assets held by borrowers to meet their obligations, include claims against other borrowers and…

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English / 01/09/2017

Tail Risk in Hedge Funds : A Unique View from Portfolio Heldings

We develop a new tail risk measure for hedge funds to examine the impact of tail risk on fund performance and to identify the sources of tail risk. We find that tail risk affects the cross-sectional variation in fund returns, and investments in both, tail-sensitive stocks as well as options, drive tail risk. Moreover, managerial incentives and discretion as well as exposure to…

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English / 01/09/2017

Direct Nonlinear Shrinkage Estimation of Large-Dimensional Covariance Matrices

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…

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English / 01/09/2017

Do Local Governments Tax Homeowner Communities Differently?

This paper investigates whether and how strongly the share of homeowners in a community affects residential property taxation by local governments. Different from renters, homeowners bear the full property tax burden irrespective of local market conditions, and the tax is more salient to them. "Homeowner communities" may hence oppose high property taxes in order to protect…

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English / 01/09/2017

Signaling to experts

We study competitive equilibrium in a signaling economy with heterogeneously informed buyers. In terms of the classic Spence (1973) model of job market signaling, firms have access to direct but imperfect information about worker types, in addition to observing their education. Firms can be ranked according to the quality of their information, i.e. their expertise. In equilibrium,…

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English / 01/09/2017

Gender bias in teaching evaluations

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…

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English / 01/09/2017

Does expanding regional train service reduce air pollution?

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…

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English / 01/09/2017

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