University of Sheffield

Displaying 1-20 of 20 results

  • White Papers // Jun 2011

    Managing User Requirement Risks - An Exploratory Study of IS Projects From the Views of Outsourcing Teams

    Requirement risk is often identified as a reason contributing to Information Systems Development (ISD) project failure but has not been adequately explored in the IS literature. Requirement risk refers to the uncertainties caused by differences between the requirements perceived by system developers and user groups' expectation of the system. Requirement...

    Provided By University of Sheffield

  • White Papers // Mar 2011

    Inventory Investment, Global Engagement, And Financial Constraints In The UK: Evidence From Micro Data

    The authors use a panel of 9381 UK firms to study the links between firms' global engagement status and their financial health. They estimate inventory investment equations augmented with a financial composition variable, and interpret the sensitivity of inventory investment to the latter as a measure of the strength of...

    Provided By University of Sheffield

  • White Papers // Mar 2011

    Access To Abortion, Investment In Neonatal Health, And Sex-Selection: Evidence From Nepal

    Every year, over 9 million children die under the age of five in developing countries, where the abortion regime is generally very restrictive. Evidence from the United States suggests that abortion liberalization may be a powerful policy tool in the fight against mortality in early life. In this paper, the...

    Provided By University of Sheffield

  • White Papers // Feb 2011

    Firm Productivity, Exchange Rate Movements, Sources Of Finance And Export Orientation

    The authors investigate the level and volatility effects of exchange rates on the productivity growth of manufacturing firms with heterogenous access to debt, and domestic and foreign equity markets in Turkey. They find that while exchange rate volatility affects productivity growth negatively, having access to foreign or domestic equity, or...

    Provided By University of Sheffield

  • White Papers // Feb 2011

    Real Effects Of Inflation Uncertainty In The US

    The authors empirically investigate the effects of inflation uncertainty on output growth for the US using both monthly and quarterly data over 1985-2009. Employing a Markov regime switching approach to model output dynamics, they show that inflation uncertainty obtained from a Markov regime switching GARCH model exerts a negative and...

    Provided By University of Sheffield

  • White Papers // Jan 2011

    On The Response Of Economic Aggregates To Monetary Policy Shocks

    This paper empirically investigates how shocks to monetary policy measures (short-term nominal interest rate and broad money supply) affect economic aggregates: output growth, price levels and nominal exchange rate. The study is carried out for Pakistan using quarterly data covering the period from 1980 to 2009. In doing this, Johansen's...

    Provided By University of Sheffield

  • White Papers // Aug 2010

    Estimating Import-Demand Function In ARDL Framework: The Case Of Pakistan

    The authors develop a structural econometric model of import demand for Pakistan, with binding foreign exchange constraint. ARDL and DOLS techniques are used to estimate the log-run coefficients of price and income elasticities. The empirical results from ARDL bound testing approach and Johansen's method for co-integration show strong evidence of...

    Provided By University of Sheffield

  • White Papers // Jun 2010

    Changing Investment Valuation Practices In The UK

    This paper makes the case for doing research on the history of investment valuation. It adopts a cultural economy approach that suggests that economies and markets are constructed, not given; and that economic practices - such as those involving calculations like property investment valuations - do not just operate the...

    Provided By University of Sheffield

  • White Papers // May 2010

    Trade Flows, Exchange Rate Uncertainty And Financial Depth: Evidence From 28 Emerging Countries

    The authors investigate the effects of real exchange rate uncertainty and financial depth on manufactures exports from 28 emerging economies to the North and South over 1978-2005. They estimate a dynamic panel model using system GMM approach and show that for the majority of countries in the sample exchange rate...

    Provided By University of Sheffield

  • White Papers // Jan 2010

    The Role of Prosody in a Voicemail Summarization System

    When a speaker leaves a voicemail message there are prosodic cues that emphasize the important points in the message, in addition to lexical content. In this paper comparison and visualization on the relative contribution of these two types of features within a voicemail summarization system has been done. It describes...

    Provided By University of Sheffield

  • White Papers // Oct 2009

    Extracting Opinions and Facts for Business Intelligence

    In today's competitive world, there are two key elements for success. One is quality product and services and the other, corporate credibility and reputation. To stay ahead in competition, big and small businesses rely heavily on business intelligence. Lack of proper tools for data mining, makes the task of gathering...

    Provided By University of Sheffield

  • White Papers // Sep 2009

    Real-time Optimal Monetary Policy With Undistinguishable Model Parameters And Shock Processes Uncertainty

    This paper studies optimal real time monetary policy when the central bank takes the volatility of the output gap and inflation as proxy of the undistinguishable uncertainty on the exogenous disturbances and the parameters of its model. The paper shows that when the uncertainty surrounding a specific state variable increases,...

    Provided By University of Sheffield

  • White Papers // Jul 2009

    Household's Preferences And Monetary Policy Inertia

    The estimation of monetary policy rules suggests that the interest rates set by the central banks move with certain inertia. Although a number of hypotheses have been suggested to explain this phenomenon, its ultimate origin is unclear, thus delineating this issue as a modern "Puzzle" in monetary economics. The authors...

    Provided By University of Sheffield

  • White Papers // Jun 2009

    Security Requirements in Judicial Information Systems: Experience From a European Project for Judicial Cross-Border Collaboration

    The increased Internet penetration and the demand for more transparent, efficient, effective, and less bureaucratic services are the main motivation behind European Commission's (EC) commitment to the modernization of governments and their transition from paper-based to electronic solutions. One of the most sensitive aspects every government should consider in the...

    Provided By University of Sheffield

  • White Papers // Apr 2009

    Governance Networks In The External Dimension Of EU Migration Policy: Europeanisation Through The Grapevine?

    Europeanization in the case of member states and accession countries stems from the supranational influence of EU law and the increasing integration, EU influence in co-operation with third countries has been undertheorised. Drawing from insights of organisational sociology and neo-institutionalist theory, the analysis of the organisational field of the external...

    Provided By University of Sheffield

  • White Papers // Mar 2009

    The Otherside Web-based Collaborative Multimedia System

    The Other side is an advanced open-source multimedia system, designed to run as a server application. It is essentially a sound synthesis system that al-lows for the creative collaboration of a number of people or machines over computer networks. Un-like most similar attempts to create network-based audio applications, the Otherside...

    Provided By University of Sheffield

  • White Papers // Mar 2009

    Human Detection in Videos

    Extracting high level features is an important field in video indexing and retrieving. Identifying the presence of human in video is one of these high level features, which facilitate the understanding of other aspects concerning people or the interactions between people. The work proposes a method for identifying the presence...

    Provided By University of Sheffield

  • White Papers // Jan 2009

    PACD: A Bitmap-Based Framework for Processing XML Data

    Current XML/RDBMS storage models and query processing technologies are reviewed in this paper, leading to the identification of query expressiveness and performance limitations. A novel serialized XML query processing framework is proposed to address these. The proposed query processor (called PACD) is based on a bitmap representation for XML's structural...

    Provided By University of Sheffield

  • White Papers // Nov 2008

    XDI Trust Information - A Trustability Protocol for Validating Distributed Information

    This paper is introducing a method for endorsing content correctness based on social participation and the Data web paradigm. The general idea is that by creating special XDI contract links supporting trusty-trustee relationships (XDI Trust Information (XTI) contract links), people will be able to estimate the correctness of information using...

    Provided By University of Sheffield

  • White Papers // Jul 2008

    An Ethnographic Study of Conflict in Software Engineering Teams

    This paper describes an ethnographic study of conflict in software engineering teams. The aim of the study was to uncover whether certain forms of conflict can be either constructive or destructive. Prior research has uncovered three distinct forms of conflict: task, relationship, and process. This trichotomy was used to measure...

    Provided By University of Sheffield

  • White Papers // Jul 2009

    Household's Preferences And Monetary Policy Inertia

    The estimation of monetary policy rules suggests that the interest rates set by the central banks move with certain inertia. Although a number of hypotheses have been suggested to explain this phenomenon, its ultimate origin is unclear, thus delineating this issue as a modern "Puzzle" in monetary economics. The authors...

    Provided By University of Sheffield

  • White Papers // Sep 2009

    Real-time Optimal Monetary Policy With Undistinguishable Model Parameters And Shock Processes Uncertainty

    This paper studies optimal real time monetary policy when the central bank takes the volatility of the output gap and inflation as proxy of the undistinguishable uncertainty on the exogenous disturbances and the parameters of its model. The paper shows that when the uncertainty surrounding a specific state variable increases,...

    Provided By University of Sheffield

  • White Papers // Mar 2011

    Access To Abortion, Investment In Neonatal Health, And Sex-Selection: Evidence From Nepal

    Every year, over 9 million children die under the age of five in developing countries, where the abortion regime is generally very restrictive. Evidence from the United States suggests that abortion liberalization may be a powerful policy tool in the fight against mortality in early life. In this paper, the...

    Provided By University of Sheffield

  • White Papers // Feb 2011

    Firm Productivity, Exchange Rate Movements, Sources Of Finance And Export Orientation

    The authors investigate the level and volatility effects of exchange rates on the productivity growth of manufacturing firms with heterogenous access to debt, and domestic and foreign equity markets in Turkey. They find that while exchange rate volatility affects productivity growth negatively, having access to foreign or domestic equity, or...

    Provided By University of Sheffield

  • White Papers // May 2010

    Trade Flows, Exchange Rate Uncertainty And Financial Depth: Evidence From 28 Emerging Countries

    The authors investigate the effects of real exchange rate uncertainty and financial depth on manufactures exports from 28 emerging economies to the North and South over 1978-2005. They estimate a dynamic panel model using system GMM approach and show that for the majority of countries in the sample exchange rate...

    Provided By University of Sheffield

  • White Papers // Jun 2011

    Managing User Requirement Risks - An Exploratory Study of IS Projects From the Views of Outsourcing Teams

    Requirement risk is often identified as a reason contributing to Information Systems Development (ISD) project failure but has not been adequately explored in the IS literature. Requirement risk refers to the uncertainties caused by differences between the requirements perceived by system developers and user groups' expectation of the system. Requirement...

    Provided By University of Sheffield

  • White Papers // Jun 2009

    Security Requirements in Judicial Information Systems: Experience From a European Project for Judicial Cross-Border Collaboration

    The increased Internet penetration and the demand for more transparent, efficient, effective, and less bureaucratic services are the main motivation behind European Commission's (EC) commitment to the modernization of governments and their transition from paper-based to electronic solutions. One of the most sensitive aspects every government should consider in the...

    Provided By University of Sheffield

  • White Papers // Oct 2009

    Extracting Opinions and Facts for Business Intelligence

    In today's competitive world, there are two key elements for success. One is quality product and services and the other, corporate credibility and reputation. To stay ahead in competition, big and small businesses rely heavily on business intelligence. Lack of proper tools for data mining, makes the task of gathering...

    Provided By University of Sheffield

  • White Papers // Jan 2010

    The Role of Prosody in a Voicemail Summarization System

    When a speaker leaves a voicemail message there are prosodic cues that emphasize the important points in the message, in addition to lexical content. In this paper comparison and visualization on the relative contribution of these two types of features within a voicemail summarization system has been done. It describes...

    Provided By University of Sheffield

  • White Papers // Nov 2008

    XDI Trust Information - A Trustability Protocol for Validating Distributed Information

    This paper is introducing a method for endorsing content correctness based on social participation and the Data web paradigm. The general idea is that by creating special XDI contract links supporting trusty-trustee relationships (XDI Trust Information (XTI) contract links), people will be able to estimate the correctness of information using...

    Provided By University of Sheffield

  • White Papers // Mar 2009

    The Otherside Web-based Collaborative Multimedia System

    The Other side is an advanced open-source multimedia system, designed to run as a server application. It is essentially a sound synthesis system that al-lows for the creative collaboration of a number of people or machines over computer networks. Un-like most similar attempts to create network-based audio applications, the Otherside...

    Provided By University of Sheffield

  • White Papers // Jul 2008

    An Ethnographic Study of Conflict in Software Engineering Teams

    This paper describes an ethnographic study of conflict in software engineering teams. The aim of the study was to uncover whether certain forms of conflict can be either constructive or destructive. Prior research has uncovered three distinct forms of conflict: task, relationship, and process. This trichotomy was used to measure...

    Provided By University of Sheffield

  • White Papers // Jan 2009

    PACD: A Bitmap-Based Framework for Processing XML Data

    Current XML/RDBMS storage models and query processing technologies are reviewed in this paper, leading to the identification of query expressiveness and performance limitations. A novel serialized XML query processing framework is proposed to address these. The proposed query processor (called PACD) is based on a bitmap representation for XML's structural...

    Provided By University of Sheffield

  • White Papers // Apr 2009

    Governance Networks In The External Dimension Of EU Migration Policy: Europeanisation Through The Grapevine?

    Europeanization in the case of member states and accession countries stems from the supranational influence of EU law and the increasing integration, EU influence in co-operation with third countries has been undertheorised. Drawing from insights of organisational sociology and neo-institutionalist theory, the analysis of the organisational field of the external...

    Provided By University of Sheffield

  • White Papers // Mar 2009

    Human Detection in Videos

    Extracting high level features is an important field in video indexing and retrieving. Identifying the presence of human in video is one of these high level features, which facilitate the understanding of other aspects concerning people or the interactions between people. The work proposes a method for identifying the presence...

    Provided By University of Sheffield

  • White Papers // Jun 2010

    Changing Investment Valuation Practices In The UK

    This paper makes the case for doing research on the history of investment valuation. It adopts a cultural economy approach that suggests that economies and markets are constructed, not given; and that economic practices - such as those involving calculations like property investment valuations - do not just operate the...

    Provided By University of Sheffield

  • White Papers // Aug 2010

    Estimating Import-Demand Function In ARDL Framework: The Case Of Pakistan

    The authors develop a structural econometric model of import demand for Pakistan, with binding foreign exchange constraint. ARDL and DOLS techniques are used to estimate the log-run coefficients of price and income elasticities. The empirical results from ARDL bound testing approach and Johansen's method for co-integration show strong evidence of...

    Provided By University of Sheffield

  • White Papers // Jan 2011

    On The Response Of Economic Aggregates To Monetary Policy Shocks

    This paper empirically investigates how shocks to monetary policy measures (short-term nominal interest rate and broad money supply) affect economic aggregates: output growth, price levels and nominal exchange rate. The study is carried out for Pakistan using quarterly data covering the period from 1980 to 2009. In doing this, Johansen's...

    Provided By University of Sheffield

  • White Papers // Mar 2011

    Inventory Investment, Global Engagement, And Financial Constraints In The UK: Evidence From Micro Data

    The authors use a panel of 9381 UK firms to study the links between firms' global engagement status and their financial health. They estimate inventory investment equations augmented with a financial composition variable, and interpret the sensitivity of inventory investment to the latter as a measure of the strength of...

    Provided By University of Sheffield

  • White Papers // Feb 2011

    Real Effects Of Inflation Uncertainty In The US

    The authors empirically investigate the effects of inflation uncertainty on output growth for the US using both monthly and quarterly data over 1985-2009. Employing a Markov regime switching approach to model output dynamics, they show that inflation uncertainty obtained from a Markov regime switching GARCH model exerts a negative and...

    Provided By University of Sheffield