University of Bonn

Displaying 1-13 of 13 results

  • White Papers // Jul 2014

    A New Rational Algorithm for View Updating in Relational Databases

    The dynamics of belief and knowledge is one of the major components of any autonomous system that should be able to incorporate new pieces of information. In order to apply the rationality result of belief dynamics theory to various practical problems, it should be generalized in two respects: it should...

    Provided By University of Bonn

  • White Papers // Aug 2013

    Crowdsourcing Linked Data Quality Assessment

    In this paper, the authors look into the use of crowdsourcing as a means to handle linked data quality problems that are challenging to be solved automatically. They analyzed the most common errors encountered in linked data sources and classified them according to the extent to which they are likely...

    Provided By University of Bonn

  • White Papers // May 2011

    Performance Pay And Multidimensional Sorting - Productivity, Preferences And Gender

    This paper studies the impact of incentives on worker self-selection in a controlled laboratory experiment. Subjects face the choice between a fixed and a variable payment scheme. Depending on the treatment, the variable payment is a piece rate, a tournament or a revenue-sharing scheme. The authors find that output is...

    Provided By University of Bonn

  • White Papers // Mar 2011

    Wormhole Detection Using Topology Graph Based Anomaly Detection

    Routing attacks are a serious threat to communication in tactical MANETs. TOGBAD is a centralised approach, using topology graphs to detect such attacks. In this paper, the authors present TOGBAD's newly added wormhole detection capability. It is an adaptation of a wormhole detection method developed by Hu et al. This...

    Provided By University of Bonn

  • White Papers // Jan 2011

    Global Banking And International Business Cycles

    This paper incorporates a global bank into a two-country business cycle model. The bank collects deposits from households and makes loans to entrepreneurs, in both countries. It has to finance a fraction of loans using equity. The authors investigate how such a bank capital requirement affects the international transmission of...

    Provided By University of Bonn

  • White Papers // Dec 2010

    Is Wine A Financial Parachute?

    This paper analyzes the relationship between Global Wine Industry Share Price Indexes and composite stock market indexes using a Threshold Vector Error Correction Model (TVECM), aiming to investigate if investments in the wine sector play a role in determining financial risk and return to investors who include it in their...

    Provided By University of Bonn

  • White Papers // Sep 2010

    In Search Of An Evolutionary Edge: Trading With A Few, More, Or Many

    Consider a population of farmers who live around a lake. Each farmer engages in trade with his m adjacent neighbors, where m is termed the "Span of interaction." Trade is governed by a prisoner's dilemma "Rule of engagement." A farmer's payoff is the sum of the payoffs from the m...

    Provided By University of Bonn

  • White Papers // Jun 2010

    Collaborative Business Process Modeling - Tool Support for Solving Typical Problems

    The paper studies typical problems that arise in collaborative modeling of business processes. The authors have used a design science approach to study collaborative modeling of business processes. Following this they have first designed a collaborative modeling architecture based on the empirical findings in a modeling study using conventional tools....

    Provided By University of Bonn

  • White Papers // Feb 2010

    Success Factors of e-Collaboration in Business Process Modeling

    The authors identify the success factors of collaborative modeling of business processes by a qualitative analysis of the experiences of participants in group modeling sessions. The factors and their relations form a preliminary theoretical model of collaboration in modeling that extends existing models. The insights from this guided the improvement...

    Provided By University of Bonn

  • White Papers // Feb 2010

    Dynamic Effects Of Foreign Direct Investment When Credit Markets Are Imperfect

    This paper argues that foreign direct investment in economies with credit market imperfections may increase their vulnerability to capital flow shocks. Due to better access to financial markets foreign firms can use other wage contracts than domestic ones. This alters the domestic wage composition and the subsequent wealth distribution. When...

    Provided By University of Bonn

  • White Papers // Jan 2010

    Improved Approximation Algorithms for the Quality of Service Multicast Tree Problem

    This paper has considered a generalization of the Steiner problem in which each node possesses a rate and the cost of an edge. This paper have given improved approximation algorithms finding trees with a cost at most 1.960 (Respectively 3.802) times the minimum cost for the case of two (Respectively...

    Provided By University of Bonn

  • White Papers // Oct 2009

    Breach Remedies Including Hybrid Investments

    The authors show that parties in bilateral trade can rely on the default common law breach remedy of 'Expectation damages' to induce simultaneously first-best relationship-specific investments of both the selfish and the cooperative kind. This can be achieved by writing a contract that specifies a sufficiently high quality level. In...

    Provided By University of Bonn

  • White Papers // Oct 2009

    Foreign Direct Investment In The Agricultural Sector In Ethiopia

    Global Foreign Direct Investment (FDI) inflows rose in 2007, after four consecutive years of growth, by 30% to reach $1,833 billion, well above the previous all-time high set in 2000 (UNCTAD, 2008). Especially in developing countries FDI inflows reached their highest level ever ($500 billion) - a 21% increase over...

    Provided By University of Bonn

  • White Papers // Jan 2011

    Global Banking And International Business Cycles

    This paper incorporates a global bank into a two-country business cycle model. The bank collects deposits from households and makes loans to entrepreneurs, in both countries. It has to finance a fraction of loans using equity. The authors investigate how such a bank capital requirement affects the international transmission of...

    Provided By University of Bonn

  • White Papers // Sep 2010

    In Search Of An Evolutionary Edge: Trading With A Few, More, Or Many

    Consider a population of farmers who live around a lake. Each farmer engages in trade with his m adjacent neighbors, where m is termed the "Span of interaction." Trade is governed by a prisoner's dilemma "Rule of engagement." A farmer's payoff is the sum of the payoffs from the m...

    Provided By University of Bonn

  • White Papers // May 2011

    Performance Pay And Multidimensional Sorting - Productivity, Preferences And Gender

    This paper studies the impact of incentives on worker self-selection in a controlled laboratory experiment. Subjects face the choice between a fixed and a variable payment scheme. Depending on the treatment, the variable payment is a piece rate, a tournament or a revenue-sharing scheme. The authors find that output is...

    Provided By University of Bonn

  • White Papers // Jan 2010

    Improved Approximation Algorithms for the Quality of Service Multicast Tree Problem

    This paper has considered a generalization of the Steiner problem in which each node possesses a rate and the cost of an edge. This paper have given improved approximation algorithms finding trees with a cost at most 1.960 (Respectively 3.802) times the minimum cost for the case of two (Respectively...

    Provided By University of Bonn

  • White Papers // Dec 2010

    Is Wine A Financial Parachute?

    This paper analyzes the relationship between Global Wine Industry Share Price Indexes and composite stock market indexes using a Threshold Vector Error Correction Model (TVECM), aiming to investigate if investments in the wine sector play a role in determining financial risk and return to investors who include it in their...

    Provided By University of Bonn

  • White Papers // Feb 2010

    Dynamic Effects Of Foreign Direct Investment When Credit Markets Are Imperfect

    This paper argues that foreign direct investment in economies with credit market imperfections may increase their vulnerability to capital flow shocks. Due to better access to financial markets foreign firms can use other wage contracts than domestic ones. This alters the domestic wage composition and the subsequent wealth distribution. When...

    Provided By University of Bonn

  • White Papers // Oct 2009

    Foreign Direct Investment In The Agricultural Sector In Ethiopia

    Global Foreign Direct Investment (FDI) inflows rose in 2007, after four consecutive years of growth, by 30% to reach $1,833 billion, well above the previous all-time high set in 2000 (UNCTAD, 2008). Especially in developing countries FDI inflows reached their highest level ever ($500 billion) - a 21% increase over...

    Provided By University of Bonn

  • White Papers // Mar 2011

    Wormhole Detection Using Topology Graph Based Anomaly Detection

    Routing attacks are a serious threat to communication in tactical MANETs. TOGBAD is a centralised approach, using topology graphs to detect such attacks. In this paper, the authors present TOGBAD's newly added wormhole detection capability. It is an adaptation of a wormhole detection method developed by Hu et al. This...

    Provided By University of Bonn

  • White Papers // Oct 2009

    Breach Remedies Including Hybrid Investments

    The authors show that parties in bilateral trade can rely on the default common law breach remedy of 'Expectation damages' to induce simultaneously first-best relationship-specific investments of both the selfish and the cooperative kind. This can be achieved by writing a contract that specifies a sufficiently high quality level. In...

    Provided By University of Bonn

  • White Papers // Feb 2010

    Success Factors of e-Collaboration in Business Process Modeling

    The authors identify the success factors of collaborative modeling of business processes by a qualitative analysis of the experiences of participants in group modeling sessions. The factors and their relations form a preliminary theoretical model of collaboration in modeling that extends existing models. The insights from this guided the improvement...

    Provided By University of Bonn

  • White Papers // Jun 2010

    Collaborative Business Process Modeling - Tool Support for Solving Typical Problems

    The paper studies typical problems that arise in collaborative modeling of business processes. The authors have used a design science approach to study collaborative modeling of business processes. Following this they have first designed a collaborative modeling architecture based on the empirical findings in a modeling study using conventional tools....

    Provided By University of Bonn

  • White Papers // Aug 2013

    Crowdsourcing Linked Data Quality Assessment

    In this paper, the authors look into the use of crowdsourcing as a means to handle linked data quality problems that are challenging to be solved automatically. They analyzed the most common errors encountered in linked data sources and classified them according to the extent to which they are likely...

    Provided By University of Bonn

  • White Papers // Jul 2014

    A New Rational Algorithm for View Updating in Relational Databases

    The dynamics of belief and knowledge is one of the major components of any autonomous system that should be able to incorporate new pieces of information. In order to apply the rationality result of belief dynamics theory to various practical problems, it should be generalized in two respects: it should...

    Provided By University of Bonn