Lund University

Displaying 1-40 of 87 results

  • White Papers // Nov 2013

    Performance Measurements and Modeling of Database Servers

    Resource management of computing systems has gained much attention in the last years, since poorly managed resources can degrade the performance of a computer system severely. In this paper, the authors present some experiments on the MySQL database server. The objective of the experiments was to investigate the high load...

    Provided By Lund University

  • White Papers // Sep 2013

    Designing Bandwidth-Efficient Stabilizing Control Servers

    Guaranteeing stability of control applications in embedded systems, or cyber-physical systems, is perhaps the alpha and omega of implementing such applications. However, as opposed to the classical real-time systems where often the acceptance criterion is meeting the deadline, control applications do not primarily enforce hard deadlines. In the case of...

    Provided By Lund University

  • White Papers // Jun 2013

    ERP System Procurement in SMEs - Two Contrasting Ways

    Enterprise Resource Planning (ERP) systems have originally been developed for Large Enterprises (LEs). However, market saturation, integration of supply chains and technology improvements have led to Small and Medium-sized Enterprises (SMEs) have started adopting ERP systems. Though there is a focus shift from LEs to SMEs in the ERP market,...

    Provided By Lund University

  • White Papers // May 2013

    An Empirical Investigation on Business Intelligence Use in Budgeting

    This empirical study addresses the research questions of how and why BI is used or not used to support the flexibility and integration needs in budgeting. Budgeting is considered a process with four main activities namely budget construction, budget consolidation, budget monitoring and budget reporting which belong equally to the...

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  • White Papers // Apr 2013

    The Challenge of Cloud Control

    Today's cloud data center infrastructures are not even near being able to cope with the enormous and rapidly varying capacity demands that will be reality in a near future. So far, very little is understood about how to transform today's data centers (being large, power-hungry facilities, and operated through heroic...

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  • White Papers // Feb 2013

    On the Average Complexity of the Processor Demand Analysis for Earliest Deadline Scheduling

    Schedulability analysis of a set of sporadic tasks scheduled by EDF on a single processor system is a well known and solved problem: the processor demand analysis is a necessary and sufficient test for EDF with pseudo-polynomial complexity. Over the years, many researchers have tried to find efficient methods for...

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  • White Papers // Jun 2012

    Privacy, Security and Trust in Cloud Computing The Perspective of the Telecommunication Industry

    The telecommunication industry has been successful in turning the Internet into a mobile service and stimulating the creation of a new set of networked, remote services. Most of these services now run or are supported by cloud computing platforms. Embracing cloud computing solutions is fundamental for the telecommunication industry to...

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  • White Papers // Jan 2012

    Networks on Chips for High-End Consumer-Electronics TV System Architectures

    Consumer electronics products, such as high-end (digital) TVs, contain complex systems on chip (SOC) that offer high computational performance at low cost. Traditionally, these SOCs are Application-Specific Standard Products (ASSPs) with limited programmability. The authors describe why TV SOCs must become more flexible, and why companion chips together with Networks...

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  • White Papers // Aug 2011

    The Components Of The Illiquidity Premium: An Empirical Analysis Of U.S. Stocks 1927-2010

    This paper estimates a conditional version of the liquidity adjusted CAPM by Acharya and Pedersen (2005) using NYSE and AMEX data from 1927 to 2010 to study the illiquidity premium and its variation over time. The components of the illiquidity premium is in this model derived as the level of...

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  • White Papers // Jun 2011

    Government Effectiveness And Regional Variation In Informal Employment Forthcoming

    This paper analyzes the role of government effectiveness in the determination of informal employment. A theoretical model is developed, in which local governance and worker skill level are assumed to influence the decision of the worker whether to seek employment in the formal or informal sector. The model is assessed...

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  • White Papers // Jun 2011

    Band Spectrum Regressions Using Wavelet Analysis

    In economics it is common to distinguish between different time horizons (i.e. short run, medium run, and long run). Engle (1974) proposed combining the discrete Fourier transform with a band spectrum regression to estimate models that separates between different time horizons. In this paper, the authors discuss possibilities and challenges...

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  • White Papers // Jun 2011

    A Matter Of Time: Revisiting Growth Convergence In Developing Countries

    The authors propose a new methodology for testing inter-regional growth convergence in developing countries. Labor surplus economies are typically characterized by large inter-regional short-term growth fluctuations, which tend to mask long-term growth trends. These fluctuations render standard tests for growth convergence unreliable. A frequency domain analysis that separates between short...

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  • White Papers // Jun 2011

    Outsourcing Public Services: Ownership, Competition, Quality And Contracting

    The authors survey the literature on the effects of public sector outsourcing. Guided by theory, they systematically arrange services according to the type and magnitude of their contractibility problems. Taken as a whole, the empirical literature indicates that public sector outsourcing generally reduces costs without hurting quality. This is clearly...

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  • White Papers // Jun 2011

    Global Innovation Networks: What Are They And Where Can We Find Them? (Conceptual And Empirical Issues)

    The rapid move of China and India from low-cost producers to innovators has triggered an increasing interest in the globalization of innovation activities and more specifically, on the surge of Global Innovation Networks (GINs). However, hitherto most of the literature is either theoretical or based on a handful of cases....

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  • White Papers // May 2011

    Sticking To Prices? - Behavioral Differences In Price Setting

    This paper suggests a simple separation mechanism, based on heterogeneity among buyers and sellers, to understand price adjustments. One group is made up of "Pragmatics" who are open to strategic action in a situation, and the other group comprises "Fundamentalists" whose reference point is based on precedent transactions. The authors...

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  • White Papers // Apr 2011

    Reaping The Benefits Of Deeper Euro-Med Integration Through Trade Facilitation

    The current political turmoil in the Arab world has contributed to renewed interest in the Barcelona Process and how it can be improved in order to promote inclusive growth in the non-EU Mediterranean countries. In this paper, the authors explore whether deeper integration in the form of trade facilitation -...

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  • White Papers // Apr 2011

    Ethnic School Segregation And Second-generation Immigrants' Human Capital

    Recent research has shown that there is a substantial skill difference in Sweden between natives and second-generation immigrants. The objective of this paper is to find out whether there exists a relationship between ethnic school segregation and the individual's human capital. The variation in ethnic concentration rate between cohorts within...

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  • White Papers // Apr 2011

    Exploring The Evolution Of Trade Survival Since 1962

    Aiming to explore how the survival of trade flows has evolved over time, the authors analyze a rich data set of detailed imports to individual EU15 countries from 140 non-EU exporters, covering the period 1962-2006. They find that short duration is a persistent characteristic of trade throughout the extended time...

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  • White Papers // Apr 2011

    Leveraging Network and Traffic Measurements for Content Distribution and Interpersonal Communication Services With Sufficient Quality

    In this paper, the authors discuss research problems for enabling content distribution and supporting real-time interpersonal communication services (e.g., voice and video) over best effort networks with sufficient quality. They take a practical view of content distribution and quality, and this is the reason for the term "Sufficient". They argue...

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  • White Papers // Apr 2011

    Productivity Or Discrimination? An Economic Analysis Of Excess-Weight Penalty In The Swedish Labor Market

    Using longitudinal data, this paper investigates the penalty for excess weight in the Swedish labor market, distinguishing between the productivity and the discrimination hypotheses. The authors analyze employment, income, and sickness absence, using the latter as a direct measure of productivity. They find that excess weight women, but not men,...

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  • White Papers // Mar 2011

    Some Instant- and Practical-Time Related-Key Attacks on KTANTAN32/48/64

    The hardware-attractive block cipher family KTANTAN was studied by Bogdanov and Rechberger who identified flaws in the key schedule and gave a match-in-the-middle attack. The authors revisit their result before investigating how to exploit the weakest key bits. They then develop several related-key attacks, e.g., one on KTANTAN32 which finds...

    Provided By Lund University

  • White Papers // Mar 2011

    Monetary Policy, Asset Price Inflation And Consumer Price Inflation

    The overall price level contains prices of everything purchased or purchasable (Fischer, 1911). The consumer price index only covers a small subset of all prices in the economy and since these prices are among the stickiest in the economy, this index may not fully capture the true rate of monetary...

    Provided By Lund University

  • White Papers // Mar 2011

    Labor Taxation And FDI Decisions In The European Union

    This paper uses panel data on bilateral FDI flows in the European Union to empirically analyze the impact of labor and corporate taxations on FDI decisions. While the effect of corporate taxes on FDI is well documented, the impact of labor taxes on FDI has been neglected. This is surprising...

    Provided By Lund University

  • White Papers // Feb 2011

    Time-Stamping Accuracy in Virtualized Environments

    The swift acceptance and the widespread use of virtual environments has substantially increased the stress on networks as each of the operating systems running in parallel sends out packets over the same network. As an increased number of packets traverse a network, the importance to continuously monitor whether the network...

    Provided By Lund University

  • White Papers // Feb 2011

    Between Burkina Faso And Brazil? Measuring Institutional Quality In Ancient Athens

    The authors use the Economic Freedom Index (Gwartney, Lawson and Norton 2008) to characterise the institutions of ancient Athens in the fourth century B.C. They find that ancient Athens places itself at the top of the league in terms of economic freedom when compared with current societies. It is increasingly...

    Provided By Lund University

  • White Papers // Feb 2011

    Accounting For The Dead In The Longitudinal Analysis Of Income-Related Health Inequalities

    This paper develops an accounting framework to consider the effect of deaths on the longitudinal analysis of income-related health inequalities. Ignoring deaths or using inverse probability weights to re-weight the sample for mortality-related attrition can produce misleading results. Incorporating deaths into the longitudinal analysis of income-related health inequalities provides a...

    Provided By Lund University

  • White Papers // Jan 2011

    Multi-Hop Wireless Networks

    In cellular and wireless local area networks, wireless communication only occurs on the last link between a base station and the wireless end system. In multi-hop wireless networks there are one or more intermediate nodes along the path that receive and forward packets via wireless links. Multi-hop wireless networks have...

    Provided By Lund University

  • White Papers // Jan 2011

    International Remittances - A Proposal How To Test Hypotheses About Determinants Of Remittances With Macroeconomic Time Series

    The authors study the determinants of remittances to developing countries at different time horizons. Remittances to developing countries nowadays exceed official development assistance and constitute a significant fraction of the disposable income of many households in developing countries. Different hypotheses suggest that remittances are often sent to compensate for low...

    Provided By Lund University

  • White Papers // Jan 2011

    Quickest Path Queries on Transportation Network

    This paper considers the problem of finding a quickest path between two points in the Euclidean plane in the presence of a transportation network. A transportation network consists of a planar network where each road (edge) has an individual speed. A traveler may enter and exit the network at any...

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  • White Papers // Jan 2011

    The Forecasting Horizon Of Inflationary Expectations And Perceptions In The EU. Is It Really 12 Months?

    The standard way today to obtain measures of inflationary expectations is to use questionnaires to ask a representative group of respondents about their beliefs of the future rate of inflation during the coming 12 months. This type of data on inflationary expectations as well as on inflationary perceptions has been...

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  • White Papers // Jan 2011

    On the Design and Control of Wireless Networked Embedded Systems

    Wireless networked embedded systems are becoming increasingly important in a wide area of technical fields. In this paper, the authors present recent results on the design of these systems and their use in control applications that have been developed within the project Reconfigurable Ubiquitous Networked Embedded Systems (RUNES). A RUNE...

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  • White Papers // Jan 2011

    Health, Economics And Ancient Greek Medicine

    A period of two and a half millennia separates us from the Classical period of ancient Greece. Nevertheless, looking at ancient Greek medicine from the perspective of modern health economics is an interesting endeavour in that it increases our understanding of the ancient world and provides insights into contemporary society....

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  • White Papers // Dec 2010

    Resource Management on Multi-core Systems: the ACTORS approach

    High-performance embedded systems, such as Smartphone, require the execution of many applications on multi-core platforms. These systems are subject to a number of stringent restrictions and constraints, such as limited amount of CPU power, long battery life, i.e., low energy demands, but also timeliness, e.g., for call handling or video...

    Provided By Lund University

  • White Papers // Dec 2010

    An Overview of Microkernel, Hypervisor and Microvisor Virtualization Approaches for Embedded Systems

    In this paper, the authors address an essential application of microkernels; its role in virtualization for embedded systems. Virtualization in embedded systems and microkernel-based virtualization are topics of intensive research today. As embedded systems specifically mobile phones are evolving to do everything that a PC does, employing virtualization in this...

    Provided By Lund University

  • White Papers // Dec 2010

    An Empirical Investigation Of Efficiency And Price Uniformity In Competing Auctions

    This paper investigates empirically a number of hypotheses that are related to efficiency and price uniformity in online competing auctions for train tickets. The data set is ideal for analyzing competing auctions since each ticket is sold in a separate auction and all auctions with identical tickets starts and ends...

    Provided By Lund University

  • White Papers // Dec 2010

    The Stability And Growth Pact: Lessons From The Great Recession

    The Great Recession, the global financial and economic crisis that erupted in 2007, has revealed a number of weaknesses in the EU framework for fiscal surveillance and fiscal policy coordination as enshrined in the Stability and Growth Pact (SGP). First, existing provisions concerning the reporting of government finance statistics did...

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  • White Papers // Dec 2010

    Upscaling Emerging Niche Technologies In Sustainable Energy: An International Comparison Of Policy Approaches

    To speed up the transformation to low-carbon energy systems, transition policy approaches highlight the importance of purposive experimentation with sustainable niche technologies. An important policy challenge that has followed from various 'Real' transition experiments concerns the crucial issue of 'Upscaling' or 'Aggregating' the niche technologies towards broader and more widespread...

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  • White Papers // Nov 2010

    Budget-Balance, Fairness And Minimal Manipulability

    A common real-life problem is to fairly allocate a number of indivisible objects and a fixed amount of money among a group of agents. Fairness requires that each agent weakly prefers his consumption bundle to any other agent's bundle. Under fairness, efficiency is equivalent to budget-balance (all the available money...

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  • White Papers // Sep 2010

    Why A Positive Link Between Age And Income-Related Health Inequality?

    This paper uses Swedish data to analyze why the SES-health gradient increases with ageing. Since different measures of SES and health capture different aspects, the authors use this information to explore the age increase in health inequality and to discriminate between three types of explanations, namely: age increase in the...

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  • White Papers // Sep 2010

    Can Targeted Food Taxes And Subsidies Improve The Diet? Distributional Effects Among Income Groups

    This paper analyzes distributional effects of revenue-neutral tax reforms aimed at improving dietary quality and encouraging healthier grain consumption. Using data on household grain purchases, the authors analyze both the impact on dietary quality and the tax incidence among income groups of VAT reforms and excise duty reforms. The VAT...

    Provided By Lund University