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Barriers to organizational learning: An integration of theory and research

This paper develops a theoretical foundation to describe and explain impediments to organizational learning (OL). Based on the expanded 4I model (Crossan et al. 1999. Academy of Management Review, 24, 522-537), which was further developed by Lawrence et al. (2005. Academy of Management Review, 30, 180-191), different learning barriers are categorized and discussed with regard to…

English / 28/08/2009

The Role of Corporate Taxation in a Large Welfare State

In comparing the impact of corporate taxation and social insurance on foreign direct investment (FDI) and unemployment, the paper derives four main results: (i) the optimal size of the welfare state depends on the degree of risk-aversion, the unemployment rate and the excess burden of labor taxes. Unemployment partly reflects the country's exposure to globalization; (ii)…

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English / 19/08/2009

Optimal Size and Intensity of Job Search Assistance Programs

This paper derives the welfare optimal size and intensity of job search assistance programs in a general equilibrium model where the labor market is affected by search frictions. Both instruments have a priori ambiguous fiscal implications: their direct employment stimulating effects broaden the base of the labor income tax and increase revenues, while also incurring direct costs. At…

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English / 27/07/2009

Theorizing change as troubling norms: Judith Butler on change agency

Theorizing change as troubling norms: Judith Butler on change agency. Norwich Business School Research Seminar Series, University of East Anglia, Norwich, UK, July 22, 2009.

English / 22/07/2009

Long-run labour market and health effects of individual sports activities

This microeconometric study analyzes the effects of individual leisure sports participation on long-term labour market variables, on socio-demographic as well as on health and subjective well-being indicators for West Germany based on individual data from the German Socio-Economic Panel study (GSOEP) 1984 to 2006. Econometric problems due to individuals choosing their own level of…

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English / 04/07/2009

Debt and Equity: What's the Difference? A Comparative View

The divide between debt and equity belongs to the focal points of national and international tax law. Under domestic individual income tax law, it is crucial for the distinction between a creditor-debtor relationship and a full partnership of taxpayers jointly carrying on a business. Under domestic corporate income tax law, it is decisive for the application of a two-layer taxation…

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English / 01/07/2009

An Extended Stein's Lemma for Asset Pricing

Stein's lemma is extended to the case where asset returns have skewed and leptokurtic distributions. The risk premium is still the negative of the covariance of the excess return with the log stochastic discount factor. The risk-neutral distribution has a simple form but is a nontrivial transformation of the physical distribution.

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English / 24/06/2009

Linking corporate strategy and supply chain management

Purpose of this paper:
The paper researches the linkages between corporate and supply chain strategy. It represents a stage of an on-going research initiative aimed at providing a framework for understanding systematically the integration of corporate strategy making and supply chain management.

Design/methodology/approach:
The paper engaged itself in the theory/…

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English / 11/06/2009

Do Implied Volatilities Predict Stock Returns?

Using a complete sample of US equity options, we find a positive,
highly significant relation between stock returns and lagged implied
volatilities. The results are robust after controlling for a number of
factors such as firm size, market value, analyst recommendations and
different levels of implied volatility. Lagged historical volatility is - in

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English / 09/06/2009

Stairway to Heaven or Highway to Hell? The Use of Global Entrepreneurship Monitor Data in Academic Research

In 1998 Babson College and London Business School initiated the Global Entrepreneurship Monitor (GEM) program to increase our understanding of the role of entrepreneurship in national economic growth. GEM is now the largest single study of entrepreneurial activity in the world. In view of the 10th anniversary of the GEM project we seek to understand how the "heavenly"…

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English / 05/06/2009

Why disagreement may not matter (much) for asset prices

A simple consumption-based two-period model is used to study the (theoretical) effects of disagreement on asset prices. Analytical and numerical results show that individual uncertainty has a much larger effect on risk premia than disagreement if (i) the risk aversion is reasonably high and (ii) individual uncertainty is not much smaller than disagreement. Evidence from survey data…

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English / 01/06/2009

Asymmetric Dependence Patterns in Financial Time Series

This paper proposes a new copula-based approach to test for asymmetries in the dependence structure of ¯nancial time series. Simply splitting observations into subsamples and comparing conditional correlations leads to spurious results due to the well-known conditioning bias. Our suggested framework is able to circumvent these problems. Applying our test to market data, we…

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English / 29/05/2009

New Frontiers in the Validation of Simulation Models - Structural Dominance Analysis

Models should be relevant for coping with the complexity of the real world. At the same time, the methods by which they are constructed and validated must be rigorous; otherwise the quality of the model suffers.
We take a test of model structure, demonstrating a new technique of analysis of the model's structure called Structural Dominance Analysis (SDA). SDA has been…

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English / 29/05/2009

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