Sfoglia DiSES Working Papers per Data di Immissione
Items 21-40 di 84
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A general coalition structure: some equivalence results
(2013)The formation of coalition may imply some theoretical difficulties, such as costs arising from forming a coalition or sharing information among agents. In this paper we will assume that only a subset S of the set of all ... -
GRID for model structure discovering in high dimensional regression
(2014)Given a nonparametric regression model, we assume that the number of covariates d → ∞ but only some of these covariates are relevant for the model. Our goal is to identify the relevant covariates and to obtain some information ... -
Bias-corrected inference for multivariate nonparametric regression: model selection and oracle property
(2014)The local polynomial estimator is particularly affected by the curse of di- mensionality. So, the potentialities of such a tool become ineffective for large dimensional applications. Motivated by this, we propose a new ... -
Relazioni tra imprese e università nel biotech-salute dell'Emilia Romagna. Una valutazione sulla base della co-authorship delle pubblicazioni scientifiche
(2007)Questo lavoro analizza il tema delle collaborazioni tra istituti di ricerca e imprese e le loro evoluzioni recenti, evidenziando il ruolo che può avere in un tale tipo di analisi un indicatore relativamente poco utilizzato, ... -
Identifiability for mixtures of distributions from a location-scale family with uniforms
(2007)In this paper we study the indentifiability of a class of mixture models where a finite number of one-dimensional location scale distributions is mixed with a finite number of uniform distributions on an interval. We define ... -
The determinants of research quality in Italy. Empirical evidence using Bibliometric data in the biotech sector
(2007)Does the collaboration between firms and universities or other research organisations improves the quality of research? Why do firms collaborate with public research organisations? The rising importance of university- ... -
Dropping out of University of Salerno: a survival approach
(2008)The aim of this paper is to analyse and model the interval of time between the first enrolment at University and the first occurrence of non-enrolment, so that the event of interest is the dropping out of University. The ... -
Privatization in oligopoly: the impact of the shadow cost of public funds
(2008)The aim of this paper is to investigate the welfare effect of privatization in oligopoly when the government takes into account the distortionary effect of rising funds by taxation (shadow cost of public funds). We analyze ... -
Efficiency gains and mergers
(2008)In the theoretical literature, strong arguments have been provided in support of the e ciency defense in antitrust merger policy. One of the most often cited results is due to Williamson (1968) that shows how relatively ... -
Winds of change and policies. The inequality - employment trade-off in the OECD
(2008)Using a data-set of OECD countries from 1980 to 2004, we assess the crosscountry evidence on the trade-off between wage inequality and employment performance by relying on Data Envelopment Analysis, a nonparametric technique ... -
Strumenti di analisi per esplorare reti di collaborazione scientifica
(2008)The study of the scientific collaboration networks is one of the traditional areas of interest in Network Analysis framework. The aim of the paper is to explore co-authorship networks, where researchers are connected ... -
Un approccio di rete all'analisi delle relazioni amicali dei disoccupati nella città di Napoli
(2008)Several studies highlight that the labour market entry is strongly influenced by informal relational networks (friendship and kinship). Given that informal networks have a relevant role in job position, the present work ... -
Assessing linearity in structural equation models through graphics
(2008)While Structural Equation Models (SEMs) generally assume linear linkages between variables, it is a well-worn issue that this may not adequately describe the complexity and richness of social phenomena. For this reason, ... -
La ricerca in collaborazione con l'industria dei docenti universitari: aggiornamento sugli esiti di un questionario
(2009)Questo articolo aggiorna i risultati di un questionario che è stato oggetto di trattazione dell’articolo “Ricerca industriale di scienziati accademici: una opportunità o un rischio per la open science? Evidenza ... -
Internal and external sources of innovation in the Italian biotech sector
(2009)A common view among many academics and policy makers is that biotech offers enormous opportunities for improving competitiveness and economic growth. For this reason there is a growing need to set up appropriate policy to ... -
Parameter estimation in continuous stochastic volatility models
(2009)Continuous-time di usion processes are often used in literature to model dynamics of nancial markets. In such kinds of models a rel- evant role is played by the variance of the process. So assumptions on the functional ... -
A locally adaptive bandwidth selector for kernel based regression
(2009)The selection of the smoothing parameter represents a crucial step in the local polynomial regression, because of the implications on the consistency of the nonparametric regression estimator and because of the difficulties ... -
A note on the invertibility of the threshold moving average model
(2010)The Threshold Moving Average model with k regimes of order q is examined. In particular we provide sufficient conditions for its invertibility by generalizing some results reported in the literature. In the first part of ... -
The effects of fiscal shocks in svar models: a graphical modelling approach
(2010)We apply graphical modelling theory to identify scal policy shocks in SVAR models of the US economy. Unlike other econometric ap- proaches which achieve identi cation by relying on potentially con- tentious a priori ... -
On the FDI: attracting property of privatization
(2010)In the present paper we provide an explanation of why privatization may attract foreign investors willing to enter a regional market. Privatization turns the formerly-public rm into a less aggressive competitor since pro ...
