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Duke University
(162 results)-
White Papers
CloudCmp: Shopping for a Cloud Made Easy
June 2, 2010, 12:00am PDT
Cloud computing has gained much popularity recently, and many companies now offer a variety of public cloud computing services, such as Google AppEngine, Amazon AWS, and Microsoft Azure. These...
Provided by Duke University
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White Papers
Sharing Networked Resources With Brokered Leases
January 1, 2011, 12:00am PST
This paper presents the design and implementation of Shirako, a system for on-demand leasing of shared networked resources. Shirako is a prototype of a service-oriented architecture for resource...
Provided by Duke University
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White Papers
Scalability in Adaptive Multi-Metric Overlays
January 1, 2011, 12:00am PST
Increasing application requirements have placed heavy emphasis on building overlay networks to efficiently deliver data to multiple receivers. A key performance challenge is simultaneously...
Provided by Duke University
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White Papers
Supporting Better Scalability and Richer Subscription Models in Wide-Area Publish/Subscribe
January 1, 2011, 12:00am PST
With the advent of Web 2.0 and the Digital Age, everyone is witnessing an unprecedented increase in the amount of information collected, and in the number of users interested in different types of...
Provided by Duke University
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White Papers
Service Level Agreement Based Distributed Resource Allocation for Streaming Hosting Systems
January 1, 2011, 12:00am PST
The trend to outsourcing network services to third parties in a utility model has resulted in a new distributed application model where the hosting service, service providers and end clients...
Provided by Duke University
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White Papers
RIOT: I/O-Efficient Numerical Computing Without SQL
January 7, 2009, 12:00am PST
R is a numerical computing environment that is widely popular for statistical data analysis. Like many such environments, R performs poorly for large datasets whose sizes exceed that of physical...
Provided by Duke University
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White Papers
Combined Guard Channel and Mobile Assisted Handoff for Cellular Networks
January 1, 2011, 12:00am PST
For cellular communication systems, mobility and limited radio coverage of a cell require calls to be handed over from one Base Station System (BSS) to an another BSS. Due to the limited bandwidth...
Provided by Duke University
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White Papers
PhonePoint Pen: Using Mobile Phones to Write in Air
May 26, 2009, 12:00am PDT
The ability to note down small pieces of information, quickly and ubiquitously, can be useful. This paper proposes a system called PhonePoint Pen that uses the in-built accelerometer in mobile...
Provided by Duke University
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White Papers
Using Mobile Phones to Write in Air
December 9, 2010, 12:00am PST
Numerous sensors in modern mobile phones enable a range of people-centric applications. This paper envisions a system called PhonePoint Pen that uses the in-built accelerometer in mobile phones to...
Provided by Duke University
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White Papers
Energy-Efficient Localization Via Personal Mobility Profiling
August 24, 2009, 12:00am PDT
Location based services are on the rise, many of which assume GPS based localization. Unfortunately, GPS incurs an unacceptable energy cost that can reduce the phone's battery life to less than...
Provided by Duke University
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White Papers
In-Vehicle Driver Detection Using Mobile Phone Sensors
January 18, 2011, 12:00am PST
The authors present a mobile phone based sensing system to determine if a mobile user in an automobile is the driver or a passenger. This can help the mobile device to be aware of the user's...
Provided by Duke University
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White Papers
The Case for Context-Aware Compression
October 23, 2010, 12:00am PDT
The proliferation of pictures and videos in the Internet is imposing heavy demands on mobile data networks. This demand is expected to grow rapidly and a one-fit-all solution is unforeseeable....
Provided by Duke University
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White Papers
Towards Mobile Phone Localization Without War-Driving
December 21, 2009, 12:00am PST
This paper identifies the possibility of using electronic compasses and accelerometers in mobile phones, as a simple and scalable method of localization without war-driving. The idea is not...
Provided by Duke University
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White Papers
BytesToGo: Offloading 3G Via WiFi Prioritization
July 30, 2010, 12:00am PDT
The growing number of sensors on mobile phones is enabling a closer look into the micro-behavior of human users. The authors envision that such behavioral insights can help deliver enhanced...
Provided by Duke University
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White Papers
Link Layer Multicasting With Smart Antennas: No Client Left Behind
September 6, 2008, 12:00am PDT
Wireless link layer multicast is an important service primitive for emerging applications, such as live video, streaming audio, and other content telecasts. The broadcast nature of the wireless...
Provided by Duke University
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White Papers
Avoiding the Rush Hours: WiFi Energy Management Via Traffic Isolation
December 11, 2010, 12:00am PST
WiFi continues to be a prime source of energy consumption in mobile devices. This paper observes that, despite a rich body of research in WiFi energy management, there is room for improvement. The...
Provided by Duke University
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White Papers
The Duality Between Message Routing and Epidemic Data Replication
October 1, 2009, 12:00am PDT
Several domains of networking such as Delay Tolerant Networks (DTNs), Mobile Ad hoc NETworks (MANETs), and Peer-to-Peer (P2P) networks have the common goal of transporting messages to their...
Provided by Duke University
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White Papers
Automating Privacy Testing of Smartphone Applications
January 18, 2011, 12:00am PST
Smartphones have revolutionized mobile computing, but have created concerns that many third-party mobile applications do not properly handle users' privacy-sensitive data. This paper proposes...
Provided by Duke University
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White Papers
Leverage, Moral Hazard And Liquidity
February 1, 2009, 12:00am PST
The authors consider a moral hazard setup wherein leveraged firms have incentives to take on excessive risks and are thus rationed when they attempt to roll over debt. Firms can sell assets to...
Provided by Duke University
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White Papers
Pocket Hypervisors: Opportunities and Challenges
January 1, 2011, 12:00am PST
In recent years, hypervisors for commodity operating systems have helped address problems in such diverse systems domains as secure-logging, honeypots, kernel-debugging, and cluster-computing....
Provided by Duke University
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White Papers
SocialFilter: Introducing Social Trust to Collaborative Spam Mitigation
November 20, 2010, 12:00am PST
This paper proposes SocialFilter, a trust-aware collaborative spam mitigation system. SocialFilter enables nodes with no email classification functionality to query the network on whether a host...
Provided by Duke University
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White Papers
Why Did My Query Slow Down?
October 7, 2008, 12:00am PDT
Enterprise environments have isolated teams responsible separately for database management and the management of underlying network attached server-storage infrastructure (referred to as Storage...
Provided by Duke University
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White Papers
Shaman: A Self-Healing Database System
November 20, 2008, 12:00am PST
A self-healing system is a grand-challenge vision where the system will detect, diagnose, and repair performance problems and hardware/software faults automatically [6]. These systems take humans...
Provided by Duke University
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White Papers
Toward Self-Healing Multitier Services
January 1, 2011, 12:00am PST
Are self-healing database-centric multitier services utopia or just a hard puzzle? The authors argue for the latter and aim to identify the missing pieces of this puzzle. They advocate robust and...
Provided by Duke University
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White Papers
NetFence: Preventing Internet Denial of Service From Inside Out
August 31, 2010, 12:00am PDT
Denial of Service (DoS) attacks frequently happen on the Internet, paralyzing Internet services and causing millions of dollars of financial loss. This work presents NetFence, a scalable...
Provided by Duke University
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White Papers
Managing Mixed-Use Clusters With Cluster-on-Demand
January 1, 2011, 12:00am PST
Although clusters offer inexpensive computing power, they are difficult and expensive to manage, particularly for user communities with diverse software needs. This paper presents...
Provided by Duke University
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White Papers
ConSil: Low-Cost Thermal Mapping of Data Centers
January 1, 2011, 12:00am PST
Several projects involving high-level thermal management - such as eliminating "Hot spots" or reducing cooling costs through intelligent workload placement - require ambient air temperature...
Provided by Duke University
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White Papers
Orca Technical Note: Guests and Guest Controllers
June 25, 2008, 12:00am PDT
This note explains support for dynamically adaptive guest applications in Orca. Orca is a software framework and open-source platform to manage a programmatically controllable shared substrate,...
Provided by Duke University
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White Papers
Cutting Corners: Workbench Automation for Server Benchmarking
March 30, 2008, 12:00am PDT
A common approach to benchmarking a server is to measure its behavior under load from a workload generator. Often a set of such experiments is required - perhaps with different server...
Provided by Duke University
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White Papers
Dynamic Virtual Clusters in a Grid Site Manager
January 1, 2011, 12:00am PST
This paper presents new mechanisms for dynamic resource management in a cluster manager called Cluster-On-Demand (COD). COD allocates servers from a common pool to multiple virtual clusters...
Provided by Duke University
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White Papers
Weighted Fair Sharing for Dynamic Virtual Clusters
June 6, 2008, 12:00am PDT
In a shared server infrastructure, a scheduler controls how quantities of resources are shared over time in a fair manner across multiple, competing consumers. It should support wide (parallel)...
Provided by Duke University
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White Papers
Weatherman: Automated, Online, and Predictive Thermal Mapping and Management for Data Centers
January 1, 2011, 12:00am PST
Recent advances have demonstrated the potential benefits of coordinated management of thermal load in data centers, including reduced cooling costs and improved resistance to cooling system...
Provided by Duke University
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White Papers
Virtual Machine Hosting for Networked Clusters: Building the Foundations for "Autonomic" Orchestration
January 1, 2011, 12:00am PST
Virtualization technology offers powerful resource management mechanisms, including performance-isolating resource schedulers, live migration, and suspend/resume. But how should networked virtual...
Provided by Duke University
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White Papers
Controlling Dynamic Guests in a Virtual Computing Utility
May 13, 2008, 12:00am PDT
Virtual Machine (VM) technology is rapidly emerging as a new foundation for server resource sharing and application service delivery. Virtual machines are instantiated from images containing...
Provided by Duke University
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White Papers
Making Scheduling "Cool": Temperature-Aware Workload Placement in Data Centers
January 1, 2011, 12:00am PST
Trends towards consolidation and higher-density computing configurations make the problem of heat management one of the critical challenges in emerging data centers. Conventional approaches to...
Provided by Duke University
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White Papers
Robust Leasing for Virtual Infrastructure
October 9, 2007, 12:00am PDT
Lease contracts are a powerful and general abstraction for negotiating and arbitrating control of shared networked resources. This paper addresses failure handling and recovery for leasing...
Provided by Duke University
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White Papers
Learning Application Models for Utility Resource Planning
January 1, 2011, 12:00am PST
Shared computing utilities allocate compute, network, and storage resources to competing applications on demand. An awareness of the demands and behaviors of the hosted applications can help the...
Provided by Duke University
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White Papers
Weighted Proximity Best-Joins for Information Retrieval
November 9, 2008, 12:00am PST
The authors consider the problem of efficiently computing weighted proximity best-joins over multiple lists, with applications in information retrieval and extraction. They are given a multi-term...
Provided by Duke University
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White Papers
Empirical Comparison of Techniques for Automated Failure Diagnosis
January 1, 2011, 12:00am PST
Failures of Internet services and enterprise systems lead to user dissatisfaction and considerable loss of revenue. Manual diagnosis of these failures can be laborious, slow, and expensive. This...
Provided by Duke University
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White Papers
Fa: A System for Automating Failure Diagnosis
January 1, 2011, 12:00am PST
Failures of Internet services and enterprise systems lead to user dissatisfaction and considerable loss of revenue. Since manual diagnosis is often laborious and slow, there is considerable...
Provided by Duke University
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White Papers
CloudCmp: Shopping for a Cloud Made Easy
June 2, 2010, 12:00am PDT
Cloud computing has gained much popularity recently, and many companies now offer a variety of public cloud computing services, such as Google AppEngine, Amazon AWS, and Microsoft Azure. These...
Provided by Duke University
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White Papers
Anypoint: Extensible Transport Switching on the Edge
January 1, 2011, 12:00am PST
Anypoint is a new model for one-to-many communication with ensemble sites-aggregations of end nodes that appear to the external Internet as a unified site. Policies for routing Any-point traffic...
Provided by Duke University
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White Papers
Beyond Virtual Data Centers: Toward an Open Resource Control Architecture
February 29, 2008, 12:00am PST
This paper summarizes recent research on networked virtual computing in the NICL lab at Duke. Over the past few years, the authors have constructed a service-oriented substrate for networked...
Provided by Duke University
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White Papers
The Missing Link: Putting the Network in Networked Cloud Computing
January 22, 2010, 12:00am PST
The backbone of IT infrastructure is evolving towards a service-oriented model, in which distributed resources, either software or hardware, can be composed as a customized IT service on demand....
Provided by Duke University
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White Papers
Strategic Alliances, Venture Capital, And The Going Public Decision
September 28, 2007, 12:00am PDT
The authors study the tradeoffs that young, private biotechnology firms face in the private equity market when they choose between raising capital from VCs or raising capital from strategic...
Provided by Duke University
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White Papers
Insecure Advantage? Markets For Technology And The Value Of Resources: Evidence From The Information Security Market
April 1, 2009, 12:00am PDT
The authors empirically study how the value of resources and capabilities for performance are contingent upon the environment. Using a novel dataset of Information Security startups, they study...
Provided by Duke University (Fuqua-Global)
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White Papers
Virtual Bluetooth
April 22, 2008, 12:00am PDT
This paper presents the design, implementation, and evaluation of Virtual Bluetooth, a service for virtual machines running XenLinux. Virtual Bluetooth provides virtual machines access to the...
Provided by Duke University
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White Papers
Construing Consumer Decision Making
January 4, 2008, 12:00am PST
Understanding how consumers represent outcomes and weigh different decision criteria is critical to consumer behavior research. Construal-level theory articulates how psychological distance alters...
Provided by Duke University (Fuqua-Global)
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White Papers
Time-Varying Call Center Design Via Lagrangian Mechanics
March 12, 2008, 12:00am PDT
This paper considers a multi-server delay queue with finite additional waiting spaces and time-varying arrival rates, where the customers waiting in the buffer may abandon. These are features that...
Provided by Duke University
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White Papers
Sensor Assisted Wireless Communication
April 12, 2010, 12:00am PDT
The nature of human mobility demands that mobile devices become agile to diverse operating environments. Coping with such diversity requires the device to assess its environment, and trigger...
Provided by Duke University
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White Papers
Sensor Assisted Wireless Communications
April 10, 2010, 12:00am PDT
The nature of human mobility demands that mobile devices become agile to diverse operating environments. Coping with such diversity requires the device to assess its environment, and trigger...
Provided by Duke University
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White Papers
Cloud Network Infrastructure as a Service: An Exercise in Multi-Domain Orchestration
March 27, 2010, 12:00am PDT
Cloud computing is now a successful and well-understood example of the Infrastructure as a Service (IaaS) model. This paper explores how to extend IaaS clouds to other kinds of substrate resources...
Provided by Duke University
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White Papers
Hierarchical Choice Models And Properties Of Optimal And Competitive Assortments
February 26, 2010, 12:00am PST
This paper studies centralized and decentralized assortment planning problems for a product category with heterogenous product types from two brands. The author model consumer choices in such a...
Provided by Duke University (Fuqua-Global)
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White Papers
Demand Estimation And Assortment Optimization Under Substitution: Methodology And Application
December 1, 2007, 12:00am PST
Assortment planning at a retailer entails both selecting the set of products to be carried and setting inventory levels for each product. The authors study an assortment planning model in which...
Provided by Duke University (Fuqua-Global)
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White Papers
The Effect Of Financial Accounting On The Location, Reinvestment, And Repatriation Decisions Of Multinational Companies
October 28, 2008, 12:00am PDT
A Survey was carried for nearly 600 tax executives about company location, reinvestment, and repatriation decisions to gain a better understanding of some of the factors that are important when...
Provided by Duke University (Fuqua-Global)
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White Papers
Real Effects Of Accounting Rules: Evidence From Multinational Firms' Investment Location And Profit Repatriation Decisions
December 21, 2009, 12:00am PST
The paper analyzes survey responses from nearly 600 tax executives to better understand corporate decisions about real investment location and profit repatriation. The evidence indicates that...
Provided by Duke University (Fuqua-Global)
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White Papers
Appendix On Russian Oil And Gas Auctions To Accompany "The Vulnerability Of Auctions To Bidder Collusion"
July 23, 2008, 12:00am PDT
For the past few years the Russian government has held oral ascending-bid auctions for oil and gas leases. The auction rules require that there be at least two bidders at the auction for it to...
Provided by Duke University (Fuqua-Global)
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White Papers
The Vulnerability Of Auctions To Bidder Collusion
August 1, 2008, 12:00am PDT
Previous work has addressed the relative vulnerability of different auction schemes to collusive bidding. The common wisdom is that ascending-bid and second-price auctions are highly susceptible...
Provided by Duke University (Fuqua-Global)
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White Papers
Slotting Allowances And Endogenous Shelf Space
June 1, 2009, 12:00am PDT
Slotting allowances are upfront payments that manufacturers make to retailers to obtain shelf space. They are widespread in the grocery industry and are of concern to antitrust policy makers...
Provided by Duke University (Fuqua-Global)
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White Papers
Rent Shifting, Exclusion And Market-Share Contracts
October 1, 2008, 12:00am PDT
The authors study rent-shifting in a sequential contracting environment in which two sellers negotiate with a common buyer. They find that the ability of the buyer and the first seller to extract...
Provided by Duke University (Fuqua-Global)
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White Papers
Optimal and Heuristic Echelon (r; nQ; T) Policies In Serial Inventory Systems With Fixed Costs
August 1, 2008, 12:00am PDT
This paper studies a periodic-review, serial inventory system in which echelon (r; nQ; T) policies are implemented. Under such a policy, each stage reviews its inventory in every T period and...
Provided by Duke University (Fuqua-Global)
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White Papers
Serial Supply Chains With Economies Of Scale: Bounds And Approximations
August 20, 2007, 12:00am PDT
The authors consider two models of stochastic serial inventory systems with economies of scale for which the forms of optimal policies are known. In the first model, each stage has a fixed-order...
Provided by Duke University (Fuqua-Global)
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White Papers
Optimal And Heuristic Echelon (s; T) Policies In Serial Inventory Systems With Fixed Costs
December 1, 2007, 12:00am PST
This paper considers a periodic-review, serial inventory system with echelon (s; T) policies. This paper assumes that a fixed cost is incurred for each inventory review, and provides a method to...
Provided by Duke University (Fuqua-Global)
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White Papers
Responding To Rivals And Compliments: How Market Concentration Shapes Generational Product Innovation Strategy
February 28, 2009, 12:00am PST
This paper examines how competitive market conditions shape the responsiveness with which businesses release Generational Product Innovations (GPIs) following the introduction of GPIs by either...
Provided by Duke University (Fuqua-Global)
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White Papers
How Firms' Capital Budgeting Methods Differ As Knightian Uncertainty And Controversy Vary: Bower And Brealey & Myers Are Both Right, Sometimes
July 15, 2009, 12:00am PDT
Capital budgeting is a contentious subject in both research and managerial practice. Financial economists such as Brealy & Myers advocate using NPV and related quantitative approaches that...
Provided by Duke University (Fuqua-Global)
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White Papers
The Interaction Between Personality, Social Network Position And Involvement In The Innovation Process
October 19, 2009, 12:00am PDT
This dissertation proposal investigates how personality and individuals' social network position affect individuals' involvement into the innovation process. It posits that people would feel...
Provided by Duke University (Fuqua-Global)
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White Papers
Discussion Of? Long-Run Risks And Risk Compensation In Equity Markets?
September 6, 2007, 12:00am PDT
Bansal and his co-authors have produced a series of important and provocative papers that demonstrate how low-frequency risk can provide a justification for observed risk premia. Bansal summarizes...
Provided by Duke University (Fuqua-Global)
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White Papers
The Role Of Component Commonality In Product Assortment Decisions
August 6, 2009, 12:00am PDT
The paper considers a firm that produces multiple variants of a product. Products are assembled using a combination of common and dedicated components. The paper characterizes the optimal...
Provided by Duke University (Fuqua-Global)
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White Papers
Confidence Risk And Asset Prices
January 1, 2010, 12:00am PST
In the data, asset prices exhibit large negative moves at frequencies of about 18 months. These large moves are puzzling as they do not coincide, nor are they followed by any significant moves in...
Provided by Duke University (Fuqua-Global)
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White Papers
A Quantitative Dynamic Agency Model Of Financing
October 1, 2008, 12:00am PDT
Recent theoretical research in corporate finance has highlighted the role of incentive problems between firms' investors and insiders in determining corporations' financial structures, dynamics...
Provided by Duke University (Fuqua-Global)
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White Papers
Tolerance Of Ambiguity And Entrepreneurial Innovation
June 1, 2008, 12:00am PDT
The paper builds a general equilibrium model of occupation choice, where the risks inherent in a technology embodying a new innovation are only vaguely known (ambiguous), whereas the old...
Provided by Duke University (Fuqua-Global)
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White Papers
Endogenous Events And Long-Run Returns
February 7, 2008, 12:00am PST
The paper analyzes event abnormal returns when returns predict events. In fixed samples the authors show that the expected abnormal return is negative and becomes more negative as the holding...
Provided by Duke University (Fuqua-Global)
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White Papers
Market Structure, Internal Capital Markets, And The Boundaries Of The Firm
August 29, 2007, 12:00am PDT
The paper studies how the creation of an Internal Capital Market (ICM) can invite strategic responses in product markets that, in turn, shape firm boundaries. ICMs provide ex post resource...
Provided by Duke University (Fuqua-Global)
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White Papers
Work Ethic, Employment Contracts, And Firm Value
October 19, 2007, 12:00am PDT
The paper analyzes how the work ethic of managers impacts a firm's employment contracts, riskiness, growth potential, and organizational structure. Flat contracts are optimal for diligent managers...
Provided by Duke University (Fuqua-Global)
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White Papers
Stock Market Declines And Liquidity
December 31, 2007, 12:00am PST
The evidence presented in this paper suggests that asset-side shock affecting the funding available to financial intermediaries contributes to significant time-variation in liquidity. Consistent...
Provided by Duke University (Fuqua-Global)
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White Papers
The Cost Of Debt
September 1, 2007, 12:00am PDT
We start with Graham's (2000) debt benefit curves and assume that for financially unconstrained firms, the benefit curve and the cost curve intersect at the chosen level of debt. Using this...
Provided by Duke University (Fuqua-Global)
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White Papers
Overconfidence, Investment Policy, And Manager Welfare
October 17, 2007, 12:00am PDT
Risk-averse managers sometimes choose to stay away from risky projects that would increase firm value. Overconfident managers overestimate their personal ability to reduce risk, and as a result...
Provided by Duke University (Fuqua-Global)
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White Papers
Equilibrium Prices In The Presence Of Delegated Portfolio Management
November 1, 2007, 12:00am PDT
This paper analyzes the asset pricing implications of commonly-used portfolio management contracts linking the compensation of fund managers to the excess return of the managed portfolio over a...
Provided by Duke University (Fuqua-Global)
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White Papers
Earnings Announcements Are Full Of Surprises
January 22, 2008, 12:00am PST
The Earnings Announcement Return (EAR) captures the market reaction to unexpected information contained in the company's earnings release. Besides the actual earnings news, this includes...
Provided by Duke University (Fuqua-Global)
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White Papers
Managerial Overconfidence And Corporate Policies
November 1, 2007, 12:00am PDT
Miscalibration is a standard measure of overconfidence in both psychology and economics. Although it is often used in lab experiments, there is scarcity of evidence about its effects in practice....
Provided by Duke University (Fuqua-Global)
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