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Modern Nonlinear Optimization Techniques for an Optimal Control of System Dynamics Models

We study System Dynamics models with several free parameters that can be altered by the user. We assume that the user's goal is to achieve a certain dynamic behavior of the model by varying these parameters. In order to the find best possible combination of parameter settings, several automatic parameter tuning methods are described in the literature and readily available within…

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English / 20/03/2014

Treatment evaluation with multiple outcome periods under endogeneity and attrition

This paper develops a nonparametric methodology for treatment evaluation with multiple outcome periods under treatment endogeneity and missing outcomes. We use instrumental variables, pre-treatment characteristics, and short-term (or intermediate) outcomes to identify the average treatment effect on the outcomes of compliers (the subpopulation whose treatment reacts on the instrument…

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English / 01/03/2014

Towards a topology of 'doing gender': An analysis of empirical research and its challenges

‘Doing gender' is a much used term in research on gender, work and organizations. However, translating theoretical insight into empirical research is often a challenging endeavour. A lack of clarity with regard to the conceptualization and operationalization of key terms in turn often limits the theoretical and empirical purchase of a concept. The aim of this article is…

English / 01/03/2014

Emancipation and/or oppression? Conceptualizing dimensions of criticality in entrepreneurship studies

Purpose: This editorial essay uses the attribute ‘critical' as a sensitizing concept to emphasize entrepreneurship's role in overcoming extant relations of exploitation, domination and oppression. It builds on the premise that entrepreneurship not only brings about new firms, products and services but also new openings for more liberating forms of individual and collective…

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English / 26/02/2014

The Public Value Scorecard: what makes an organization valuable to society?

What value are large organizations bringing to society? And, when they are getting it
right, how can and should corporations build trust and gain legitimacy within society?
The University of St. Gallen in Switzerland has developed a "Public Value Scorecard"
(PVSC) to help organizations understand and increase their value to society.

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English / 21/02/2014

The City as Socio-Material Performance

In recent years, attempts to move urban planning from a focus on formal designs to processes of organizing that take place outside and across the boundaries of well-defined planning projects have gathered steam. The presentation seeks to contribute to this movement through a conceptual and empirical reconsideration and revitalization of the notion of participation. Empirically, the…

English / 20/02/2014

Target Capital Structure and Adjustment Speed in Asia

Studies on the capital structure of Asian corporations are rare, and most of those studies support different explanations of financing decisions compared to the ones accepted for the USA and Europe. We test relationships that are typical of the Tradeoff Theory and the Pecking Order Theory, and analyze the speed of adjustment toward target capital structures for 1239 companies with…

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English / 01/02/2014

Counteracting skill decay: four refresher

In process automation, skill decay has not been investigated systematically. In two experimental studies, refresher interventions (RIs) were compared to support skill and knowledge retention of a start-up procedure on a simulated process control task. Based on theories of proceduralisation, the 'testing-effect' and mental practice, four different RIs were designed. In Study…

English / 01/02/2014

Determining the revenue contribution of logistics customer service improvements: a multi criteria decision making approach

In operations and service management generating revenues is as important as reducing costs. Although logistics customer service is an important measure for executives, little research has been conducted to quantify the extent to which improvements of service levels contribute to a company's revenues. The paper applies existing fuzzy-based methods to monetarily determine the…

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English / 01/02/2014

Insights from Swiss Pension Systems

This chapter takes Switzerland's much praised three-pillar system to illustrate some of the challenges pension system reforms face in an aging society. It shows that policymakers are confronted by some individuals with behavioral anomalies, and by others who strategically exploit the system The trade-off between providing incentives and adequate retirement income limits policy…

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English / 23/01/2014

Labor market effects of sports and exercise: Evidence from Canadian panel data

Based on the Canadian National Population Health Survey we estimate the effects of individ-ual sports and exercise on individual labor market outcomes. The data covers the period from 1994 to 2008. It is longitudinal and rich in life-style, health, and physical activity in-formation. Exploiting these features of the data allows for a credible identification of the effects as well as…

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English / 01/01/2014

Practical Procedures to Deal with Common Support Problems in Matching Estimation

This paper assesses the performance of common estimators adjusting for differences in covariates, like matching and regression, when faced with so-called common support problems. It also shows how different procedures suggested in the literature to tackle common support problems affect the properties of such estimators. Based on an Empirical Monte Carlo simulation design, a lack of…

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English / 01/01/2014

Bank Portfolio Choice, Uninsurable Risks and Regulatory Constraints

We use individual U.S. commercial bank balance sheet and income statement information
to develop stylized facts about bank portfolio choices in both the cross section and over
time. We then estimate the structural parameters of a quantitative model of bank portfolio
choices (new loans, liquid investments and endogenous failure) that are made in the presence
of…

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English / 01/01/2014

Ratings and Regulation: A Case of an Irreversible Marriage?

What are the rationales for policymakers to rely on putatively disinterested actors such as credit rating agencies (CRAs) for financial regulatory input? This paper draws on perspectives from International Political Economy and Comparative Legal Studies to analyze the reasons behind the use and retention of external ratings as an indirect instrument of financial regulation.

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English / 01/01/2014

Assignment Mechanisms, Selection Criteria, and the Effectiveness of Training Programmes

We analyse the effectiveness of vocational training under two different assignment mechanisms. The direct assignment mechanism is characterised by the strong influence of caseworkers who can directly assign the unemployed to vocational training courses. Under the voucher assignment mechanism unemployed have more freedom to choose among different courses and training providers.…

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English / 01/01/2014

Corporate Transparency and Bond Liquidity

To answer the question what causes an asset to be illiquid, we analyze the impact that transparency of corporate accounting information has on the liquidity of its traded bonds. In particular, we focus on how this relationship depends on aggregate liquidity and the financial state of the firm. We use an extensive panel data set comprising more than 40,000 quarterly bond observations…

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English / 01/01/2014

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