Scuola Superiore Sant'Anna

Displaying 1-33 of 33 results

  • White Papers // Oct 2011

    Experimenting Hierarchical PCE Architecture in a Distributed Multi-Platform Control Plane Testbed

    The Path Computation Element (PCE) architecture is widely recognized to enable Traffic Engineering (TE) solutions even in network scenarios where available resources information exchange is limited (e.g., multi-layer, multi-domain, multi-carrier). In the typical multi-domain scenario, a single PCE is responsible for path computation inside each domain, while the inter-domain path...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2011

    Rewiring World Trade. Part II: A Weighted Network Analysis

    In this sequel to a companion paper, the authors complement the analysis of the binary projections of the International Trade Network (ITN) by considering its weighted representations. They show that, unlike the binary case, all possible weighted representations of the ITN (directed/undirected, aggregated/ disaggregated) cannot be traced back to local...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2011

    Rewiring World Trade. Part I: A Binary Network Analysis

    The International Trade Network (ITN) has received renewed multidisciplinary interest due to recent advances in network theory. However, it is still unclear whether a network approach conveys additional, nontrivial information with respect to traditional international-economics analyses that describe world trade only in terms of local (first-order) properties. In this and...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2011

    Innovation, Technical Change And Patents In The Development Process: A Long Term View

    The key feature of the historical process of economic development is the "Great transformation" (Polanyi, 1944) whereby the traditional organization of economic activities gives way to the systematic adoption and development of new production processes, new products and new organizational forms characterized by the prevalence of modern industries, and knowledge-intensive...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2011

    An Emerging Paradigm Or Just Another Trajectory? Understanding The Nature Of Technological Changes Using Engineering Heuristics In The Telecommunications Switching Industry

    This paper on technological changes distinguishes between paradigmatic changes and changes in trajectories. Recently several scholars have performed empirical studies on the way technological trajectories evolve in specific industries, often by predominantly looking at the artifacts. Much less - if any - empirical work has been done on paradigmatic changes,...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2011

    Modeling Routines And Organizational Learning. A Discussion Of The State-of-the-art

    This paper presents a critical overview of some recent attempts at building formal models of organizations as information-processing and problem-solving entities. The authors distinguish between two classes of models according to two distinct objects of analysis. The first class includes models mainly addressing information processing and learning; the second class...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2011

    Evolution And Market Behavior With Endogenous Investment Rules

    In a repeated market for short-lived assets, the authors investigate long run wealth-driven selection on the general class of investment rules that depend on endogenously determined current and past prices. They study the random dynamical system that describes the price and wealth dynamics and characterize local stability of long-run market...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2011

    Spatial Differentiation In Industrial Dynamics. A Core-periphery Analysis Based On The Pavitt-miozzo-soete Taxonomy

    The authors compare the industrial dynamics in the core, semi-periphery and periphery in The Netherlands in terms of firm entry-exit, size, growth and sectoral location patterns. The contribution of the work is to provide the first comprehensive study on spatial differentiation in industrial dynamics for all firm sizes and all...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2011

    Framing The Empirical Findings On Firm Growth

    This paper proposes a general framework to account for the divergent results in the empirical literature on the relation between firm sizes and growth rates, and on many results on growth autocorrelation. In particular, the authors provide an explanation for why traces of the LPE sometimes occur in conditional mean...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Nov 2010

    On The Latin American Growth Paradox: A Hindsight Into The Golden Age

    In 1950, Latin American countries' capabilities were promising, and the subcontinent was thought to have a big potential for convergence. In order to understand why this prediction was not fulfilled, the authors apply in this paper the framework set by Fagerberg and Srholec (2008(24)). The paper of the economic evolution...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2010

    Financial And Economic Determinants Of Firm Default

    This paper investigates the relevance of financial and economic variables as determinants of firm defaults. This analysis is not limited to publicly traded companies but extends to a large sample of limited liability firms. The authors consider size, growth, profitability and productivity together with a standard set of financial indicators....

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jul 2010

    Growth Processes Of Italian Manufacturing Firms

    This paper presents a multidimensional empirical analysis of firm growth. Exploiting census data on Italian manufacturing firms, 1989-1997, the authors estimate a reduced-form VAR to analyze the co-evolution of employment growth, sales growth, growth of profits and labour productivity growth. The main findings suggest that employment growth precedes sales growth;...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jun 2010

    A Service-Oriented Architecture for QoS Configuration and Management of Wireless Sensor Networks

    Software infrastructures for networked enterprises may need data coming from low-level pervasive devices, such as Wireless Sensor Networks (WSNs). However, the complex management of such tiny physical devices is not acceptable for high-level enterprise applications. Hence the need for a middleware layer that hides complexity and supports the management of...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jun 2010

    Multinetwork Of International Trade: A Commodity-Specific Analysis

    The authors study the topological properties of the multinetwork of commodity-specific trade relations among world countries over the 1992-2003 periods, comparing them with those of the aggregate-trade network, known in the literature as the International-Trade Network (ITN). They show that link-weight distributions of commodity-specific networks are extremely heterogeneous and (quasi)...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // May 2010

    Is Bigger Always Better ? The Effect Of Size On Defaults

    Analyzing a large sample of Italian firms the authors find that the probability of default increases with size. This contrasts with the common observation, based on measures of exit from business registry data, that firms' death rate is inversely related to the scale of their operation and suggests a rethinking...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2010

    Modelling The Distribution Of Day-ahead Electricity Returns: A Comparison

    This paper contributes to characterizing the probability density of the price returns in some European day-ahead electricity markets (NordPool, APX, Powernext) by fitting some flexible and general families of distributions, such as the ?-stable, Normal Inverse Gaussian (NIG), Exponential Power (EP), and Asymmetric Exponential Power (AEP), and comparing their goodness...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2010

    The Links Between Internationalization, Skills And Wages. The Role Of Differences Across Firms And Across Partner Countries

    Using firm level data on Italian manufacturing industry, the authors examine how trade activities are related to workforce composition and wages. They provide novel evidence that is consistent with multi-attribute models on firm heterogeneity and trade. In fact they show that even after controlling for various firm characteristics, including size...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Dec 2009

    How Does Market Architecture Affect Price Dynamics ? A Time Series Analysis Of The Italian Day-ahead Electricity Prices

    How do changes in the market architecture affect the dynamics of deregulated electricity prices? The authors investigate this issue in the context of the Italian Power Exchange (IPEX), using data on the daily average day-ahead price between April 2004 and December 2008. Estimates of baseline time series models (ARMAX and...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Nov 2009

    Self-selection Along Different Export And Import Markets

    How are firms' performances influenced by the specific characteristics of markets where exports are directed and imports originate from? Using a rich database on Italian manufacturing firms, this essay adds new evidence on the relationship between trade status and firm characteristics. The authors show that different destinations of exports and...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2009

    BACCARAT: A Dynamic Real-Time Bandwidth Allocation Policy for IEEE 802.15.4

    Recently, researchers and engineers began considering the use of WSN in time-sensitive applications. For effective real-time communications, it is important to solve the problem of contention to the communication medium providing an efficient bandwidth allocation mechanism. In this paper, the authors tackle with the problem of performing timely detection of...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2009

    Trade And Profitability: Is There An Export Premium? Evidence From Italian Manufacturing Firms

    Using firm level data this study investigates the relation between export activity and firm's profitability. The paper shows that, contrary to other performance indicators such as productivity, exporting activity is not systematically associated to higher firm's profitability. This is shown both by means of non-parametric methods and, with an approach...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2009

    Do Some Firms Persistently Outperform ?

    This paper analyses persistence in growth rates of the entire population of Dutch manufacturing firms. Previous literature on firm growth rates shows that extreme growth events are likely to be negatively correlated over time. A rebound effect following an extreme growth event questions the existence of persistent outperformers, indicated by...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Sep 2009

    An EDF Scheduling Class for the Linux Kernel

    The Linux kernel is mainly used is general-purpose operating system, i.e., in server and/or desktop environments. During the last years, however, academic institutions and companies showed an increasing interest in using it for real-time and control applications as well. However, since Linux has not been designed to be a real-time...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Sep 2009

    Stimulating Graduates' Research-oriented Careers: Does Academic Research Matter ?

    This paper investigates whether the quality of higher education and, in particular, its research performance stimulate graduates' research-oriented careers. More specifically, exploiting a very rich data-set on university graduates and the higher education institutions they attended, the authors empirically study whether graduates from universities and programs that display better academic...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Sep 2009

    Markets Fo Heterogeneous Products: A Boundedly Rational Consumer Model

    The paper is based on the acknowledgement that properties of markets stemming from features of demand are too frequently overlooked in the economic literature, and a re-balancing is necessary to properly account for theoretical and empirical phenomena. The authors sustain that one of the most relevant reasons for the neglect...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Aug 2009

    Technical Change And Industrial Dynamics As Evolutionary Processes

    A wide ensemble of scholars, both in economics and several other disciplines, have been studying technological advance, viewed as an evolutionary process. This perspective on technological change is closely linked to recent research on industrial dynamics and on economic growth as processes intertwined with and driven by technological and organizational...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Aug 2009

    How Do Organizational Capabilities Shape Industry Dynamics ?

    This paper aims to reconcile the logic behind stochastic models of firm growth and the notion of organizational capabilities as drivers of economic performance. In the proposed behavioral model of bounded rational firms, two mechanisms drive growth: independent stochastic growth of individual opportunities and the process by which firms capture...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Aug 2009

    The International-Trade Network: Gravity Equations And Topological Properties

    This paper begins to explore the determinants of the topological properties of the International - Trade Network (ITN). The authors fit bilateral-trade flows using a standard gravity equation to build a "Residual" ITN where trade-link weights are depurated from geographical distance, size, border effects, trade agreements, and so on. They...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jul 2009

    An Evolutionary Model Of Firms Location With Technological Externalities

    In an economic geography model where both a negative pecuniary and a positive technological externality are present, the authors introduce an explicit dynamics of firms' locational choice and they characterize its long run distribution. The analysis shows that economic activities evenly distribute when the pecuniary externalities prevail, and agglomerate otherwise....

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Apr 2009

    Appropriability, Patents, And Rates Of Innovation In Complex Products Industries

    The economic theory of intellectual property rights is based on a rather narrow view of both competition and technological knowledge. The authors suggest some ways of enriching this framework with a more empirically grounded view of both and, by means of a simulation model, they analyze the impact of different...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Apr 2009

    Optimal Bandwidth Selection For Conditional Efficiency Measures: A Data-driven Approach

    In productivity analysis an important issue is to detect how external (environmen-tal) factors, exogenous to the production process and not under the control of the producer, might influence the production process and the resulting efficiency of the firms. Most of the traditional approaches proposed in the literature have serious drawbacks....

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2009

    Spatial Localization In Manufacturing: A Cross-country Analysis

    This paper employs a homogenous firm's database to investigate industry localization in European countries. More specifically, the authors compare, across industries and countries, the predictions of two of the most popular localization indices, i.e., the Ellison and Glaeser index (Ellison and Glaeser, 1997) and the Duranton and Overman index (Duranton...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2009

    Does Volatility Matter? Expectations Of Price Return And Variability In An Asset Pricing Experiment

    The authors present results of an experiment on expectation formation in an asset market. Participants to the experiment must provide forecasts of the stock future return to computerized utility-maximizing investors, and are rewarded according to how well their forecasts perform in the market. In the Baseline treatment participants must forecast...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2010

    Financial And Economic Determinants Of Firm Default

    This paper investigates the relevance of financial and economic variables as determinants of firm defaults. This analysis is not limited to publicly traded companies but extends to a large sample of limited liability firms. The authors consider size, growth, profitability and productivity together with a standard set of financial indicators....

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2011

    Rewiring World Trade. Part II: A Weighted Network Analysis

    In this sequel to a companion paper, the authors complement the analysis of the binary projections of the International Trade Network (ITN) by considering its weighted representations. They show that, unlike the binary case, all possible weighted representations of the ITN (directed/undirected, aggregated/ disaggregated) cannot be traced back to local...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2011

    Rewiring World Trade. Part I: A Binary Network Analysis

    The International Trade Network (ITN) has received renewed multidisciplinary interest due to recent advances in network theory. However, it is still unclear whether a network approach conveys additional, nontrivial information with respect to traditional international-economics analyses that describe world trade only in terms of local (first-order) properties. In this and...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2011

    Innovation, Technical Change And Patents In The Development Process: A Long Term View

    The key feature of the historical process of economic development is the "Great transformation" (Polanyi, 1944) whereby the traditional organization of economic activities gives way to the systematic adoption and development of new production processes, new products and new organizational forms characterized by the prevalence of modern industries, and knowledge-intensive...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2011

    An Emerging Paradigm Or Just Another Trajectory? Understanding The Nature Of Technological Changes Using Engineering Heuristics In The Telecommunications Switching Industry

    This paper on technological changes distinguishes between paradigmatic changes and changes in trajectories. Recently several scholars have performed empirical studies on the way technological trajectories evolve in specific industries, often by predominantly looking at the artifacts. Much less - if any - empirical work has been done on paradigmatic changes,...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2011

    Modeling Routines And Organizational Learning. A Discussion Of The State-of-the-art

    This paper presents a critical overview of some recent attempts at building formal models of organizations as information-processing and problem-solving entities. The authors distinguish between two classes of models according to two distinct objects of analysis. The first class includes models mainly addressing information processing and learning; the second class...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2011

    Spatial Differentiation In Industrial Dynamics. A Core-periphery Analysis Based On The Pavitt-miozzo-soete Taxonomy

    The authors compare the industrial dynamics in the core, semi-periphery and periphery in The Netherlands in terms of firm entry-exit, size, growth and sectoral location patterns. The contribution of the work is to provide the first comprehensive study on spatial differentiation in industrial dynamics for all firm sizes and all...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2011

    Framing The Empirical Findings On Firm Growth

    This paper proposes a general framework to account for the divergent results in the empirical literature on the relation between firm sizes and growth rates, and on many results on growth autocorrelation. In particular, the authors provide an explanation for why traces of the LPE sometimes occur in conditional mean...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Feb 2010

    Modelling The Distribution Of Day-ahead Electricity Returns: A Comparison

    This paper contributes to characterizing the probability density of the price returns in some European day-ahead electricity markets (NordPool, APX, Powernext) by fitting some flexible and general families of distributions, such as the ?-stable, Normal Inverse Gaussian (NIG), Exponential Power (EP), and Asymmetric Exponential Power (AEP), and comparing their goodness...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Dec 2009

    How Does Market Architecture Affect Price Dynamics ? A Time Series Analysis Of The Italian Day-ahead Electricity Prices

    How do changes in the market architecture affect the dynamics of deregulated electricity prices? The authors investigate this issue in the context of the Italian Power Exchange (IPEX), using data on the daily average day-ahead price between April 2004 and December 2008. Estimates of baseline time series models (ARMAX and...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2010

    The Links Between Internationalization, Skills And Wages. The Role Of Differences Across Firms And Across Partner Countries

    Using firm level data on Italian manufacturing industry, the authors examine how trade activities are related to workforce composition and wages. They provide novel evidence that is consistent with multi-attribute models on firm heterogeneity and trade. In fact they show that even after controlling for various firm characteristics, including size...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Nov 2009

    Self-selection Along Different Export And Import Markets

    How are firms' performances influenced by the specific characteristics of markets where exports are directed and imports originate from? Using a rich database on Italian manufacturing firms, this essay adds new evidence on the relationship between trade status and firm characteristics. The authors show that different destinations of exports and...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2009

    Trade And Profitability: Is There An Export Premium? Evidence From Italian Manufacturing Firms

    Using firm level data this study investigates the relation between export activity and firm's profitability. The paper shows that, contrary to other performance indicators such as productivity, exporting activity is not systematically associated to higher firm's profitability. This is shown both by means of non-parametric methods and, with an approach...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2009

    Do Some Firms Persistently Outperform ?

    This paper analyses persistence in growth rates of the entire population of Dutch manufacturing firms. Previous literature on firm growth rates shows that extreme growth events are likely to be negatively correlated over time. A rebound effect following an extreme growth event questions the existence of persistent outperformers, indicated by...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Sep 2009

    Stimulating Graduates' Research-oriented Careers: Does Academic Research Matter ?

    This paper investigates whether the quality of higher education and, in particular, its research performance stimulate graduates' research-oriented careers. More specifically, exploiting a very rich data-set on university graduates and the higher education institutions they attended, the authors empirically study whether graduates from universities and programs that display better academic...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Sep 2009

    Markets Fo Heterogeneous Products: A Boundedly Rational Consumer Model

    The paper is based on the acknowledgement that properties of markets stemming from features of demand are too frequently overlooked in the economic literature, and a re-balancing is necessary to properly account for theoretical and empirical phenomena. The authors sustain that one of the most relevant reasons for the neglect...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Aug 2009

    How Do Organizational Capabilities Shape Industry Dynamics ?

    This paper aims to reconcile the logic behind stochastic models of firm growth and the notion of organizational capabilities as drivers of economic performance. In the proposed behavioral model of bounded rational firms, two mechanisms drive growth: independent stochastic growth of individual opportunities and the process by which firms capture...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Aug 2009

    Technical Change And Industrial Dynamics As Evolutionary Processes

    A wide ensemble of scholars, both in economics and several other disciplines, have been studying technological advance, viewed as an evolutionary process. This perspective on technological change is closely linked to recent research on industrial dynamics and on economic growth as processes intertwined with and driven by technological and organizational...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Apr 2009

    Appropriability, Patents, And Rates Of Innovation In Complex Products Industries

    The economic theory of intellectual property rights is based on a rather narrow view of both competition and technological knowledge. The authors suggest some ways of enriching this framework with a more empirically grounded view of both and, by means of a simulation model, they analyze the impact of different...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2009

    Spatial Localization In Manufacturing: A Cross-country Analysis

    This paper employs a homogenous firm's database to investigate industry localization in European countries. More specifically, the authors compare, across industries and countries, the predictions of two of the most popular localization indices, i.e., the Ellison and Glaeser index (Ellison and Glaeser, 1997) and the Duranton and Overman index (Duranton...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Mar 2009

    Does Volatility Matter? Expectations Of Price Return And Variability In An Asset Pricing Experiment

    The authors present results of an experiment on expectation formation in an asset market. Participants to the experiment must provide forecasts of the stock future return to computerized utility-maximizing investors, and are rewarded according to how well their forecasts perform in the market. In the Baseline treatment participants must forecast...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jul 2009

    An Evolutionary Model Of Firms Location With Technological Externalities

    In an economic geography model where both a negative pecuniary and a positive technological externality are present, the authors introduce an explicit dynamics of firms' locational choice and they characterize its long run distribution. The analysis shows that economic activities evenly distribute when the pecuniary externalities prevail, and agglomerate otherwise....

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Apr 2009

    Optimal Bandwidth Selection For Conditional Efficiency Measures: A Data-driven Approach

    In productivity analysis an important issue is to detect how external (environmen-tal) factors, exogenous to the production process and not under the control of the producer, might influence the production process and the resulting efficiency of the firms. Most of the traditional approaches proposed in the literature have serious drawbacks....

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jul 2010

    Growth Processes Of Italian Manufacturing Firms

    This paper presents a multidimensional empirical analysis of firm growth. Exploiting census data on Italian manufacturing firms, 1989-1997, the authors estimate a reduced-form VAR to analyze the co-evolution of employment growth, sales growth, growth of profits and labour productivity growth. The main findings suggest that employment growth precedes sales growth;...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // May 2010

    Is Bigger Always Better ? The Effect Of Size On Defaults

    Analyzing a large sample of Italian firms the authors find that the probability of default increases with size. This contrasts with the common observation, based on measures of exit from business registry data, that firms' death rate is inversely related to the scale of their operation and suggests a rethinking...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Nov 2010

    On The Latin American Growth Paradox: A Hindsight Into The Golden Age

    In 1950, Latin American countries' capabilities were promising, and the subcontinent was thought to have a big potential for convergence. In order to understand why this prediction was not fulfilled, the authors apply in this paper the framework set by Fagerberg and Srholec (2008(24)). The paper of the economic evolution...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jan 2011

    Evolution And Market Behavior With Endogenous Investment Rules

    In a repeated market for short-lived assets, the authors investigate long run wealth-driven selection on the general class of investment rules that depend on endogenously determined current and past prices. They study the random dynamical system that describes the price and wealth dynamics and characterize local stability of long-run market...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jun 2010

    A Service-Oriented Architecture for QoS Configuration and Management of Wireless Sensor Networks

    Software infrastructures for networked enterprises may need data coming from low-level pervasive devices, such as Wireless Sensor Networks (WSNs). However, the complex management of such tiny physical devices is not acceptable for high-level enterprise applications. Hence the need for a middleware layer that hides complexity and supports the management of...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2009

    BACCARAT: A Dynamic Real-Time Bandwidth Allocation Policy for IEEE 802.15.4

    Recently, researchers and engineers began considering the use of WSN in time-sensitive applications. For effective real-time communications, it is important to solve the problem of contention to the communication medium providing an efficient bandwidth allocation mechanism. In this paper, the authors tackle with the problem of performing timely detection of...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Oct 2011

    Experimenting Hierarchical PCE Architecture in a Distributed Multi-Platform Control Plane Testbed

    The Path Computation Element (PCE) architecture is widely recognized to enable Traffic Engineering (TE) solutions even in network scenarios where available resources information exchange is limited (e.g., multi-layer, multi-domain, multi-carrier). In the typical multi-domain scenario, a single PCE is responsible for path computation inside each domain, while the inter-domain path...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Sep 2009

    An EDF Scheduling Class for the Linux Kernel

    The Linux kernel is mainly used is general-purpose operating system, i.e., in server and/or desktop environments. During the last years, however, academic institutions and companies showed an increasing interest in using it for real-time and control applications as well. However, since Linux has not been designed to be a real-time...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Jun 2010

    Multinetwork Of International Trade: A Commodity-Specific Analysis

    The authors study the topological properties of the multinetwork of commodity-specific trade relations among world countries over the 1992-2003 periods, comparing them with those of the aggregate-trade network, known in the literature as the International-Trade Network (ITN). They show that link-weight distributions of commodity-specific networks are extremely heterogeneous and (quasi)...

    Provided By Scuola Superiore Sant'Anna

  • White Papers // Aug 2009

    The International-Trade Network: Gravity Equations And Topological Properties

    This paper begins to explore the determinants of the topological properties of the International - Trade Network (ITN). The authors fit bilateral-trade flows using a standard gravity equation to build a "Residual" ITN where trade-link weights are depurated from geographical distance, size, border effects, trade agreements, and so on. They...

    Provided By Scuola Superiore Sant'Anna