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Università della Svizzera italiana

Unobserved heterogeneity in stochastic cost frontier models : a comparative analysis

Farsi, Mehdi ; Filippini, Massimo ; Kuenzle, Michael

This paper studies a number of stochastic cost frontier models comparing their ability to distinguish unobserved heterogeneity from inefficiency variation among firms. The main focus is on the panel data models that incorporate firm-specific effects in a stochastic frontier framework, as proposed by Greene (2002, 2004). In cases where the unobserved heterogeneity is correlated with some of the...

Università della Svizzera italiana

The plant size problem and monopoly pricing

Demichelis, Stefano ; Tarola, Ornella

This paper is concerned with the so called ”plant-size problem”: a demand increasing over time has to be served by a firm when there are economies of scale in plant construction. Generally the operating firm is assumed to be a cost-minimizer. We depart from this by supposing that it is a profit-maximizer, namely can manipulate demand through its own price. For the properties of a simultaneous...

Università della Svizzera italiana

Struttura dei salari 2000 : valutazioni in base all’inchiesta dell’Ufficio federale di statistica in Ticino

Rossera, Fabio

Sulla base dell'Inchiesta sulla struttura dei salari 2000 vengono esaminate alcune particolarità strutturali del mercato del lavoro del Canton Ticino. Si identificano in un primo tempo le caratteristiche che determinano le maggiori differenze rilevate nelle retribuzioni salariali. Si approfondisce successivamente l'analisi riguardo ad alcune problematiche di particolare interesse. Si rileva la...

Università della Svizzera italiana

Quid pro quo in IPOs : why book-building is dominating auctions

Degeorge, François ; Derrien, François ; Womack, Kent L.

The book-building procedure for selling initial public offerings to investors hascaptured significant market share from auction alternatives in recent years, despite significantly lower costs in both direct fees and initial underpricing when using the auction mechanism. This paper shows that in the French market, where the frequency of book-building and auctions was about equal in the 1990s, the...

Università della Svizzera italiana

Efficiency measurement in network industries : application to the Swiss railway companies

Farsi, Mehdi ; Filippini, Massimo ; Greene, William

This paper examines the performance of several panel data models to measure cost and scale efficiency in network industries. Network industries are characterized by a high degree of heterogeneity, much of which is network-specific and unobserved. The unaccounted-for heterogeneity can create bias in the inefficiency estimates. The stochastic frontier models that include additional firm-specific...

Università della Svizzera italiana

Federalism and regional health care expenditures : an empirical analysis for the Swiss cantons

Crivelli, Luca ; Filippini, Massimo ; Mosca, Ilaria

Switzerland (7.2 million inhabitants) is a federal state composed of 26 cantons. Article 3 of the Federal Constitution grants ample autonomy to individual cantons in those sectors that are not directly regulated by the Constitution, among others health and social care. The autonomy of cantons creates strong heterogeneity in terms of regulatory systems and the organization of health care services....

Università della Svizzera italiana

Knowledge communication problems between experts and managers : an analysis of knowledge transfer in decision processes

Eppler, Martin J.

This article proposes a communication perspective on the problem of knowledge transfer between experts and managers in organizational decision making processes. We outline why this perspective is important and we show where and when knowledge communication matters. After an overview of typical knowledge communication situations in management, we define knowledge communication and differentiate it...

Università della Svizzera italiana

Knowledge visualization : towards a new discipline and its fields of application

Eppler, Martin J. ; Burkhard, Remo A.

In this paper, we establish the concept of knowledge visualization and review the state-of-theart in this emergent domain. We define the concept and differentiate it from information visualization. We describe select background disciplines and potential application fields. Various knowledge visualization types are distinguished and examples of their real-life application are provided and...

Università della Svizzera italiana

Sviluppo degli studi museali e crisi dell'identità dell'istituzione

Zorzi, Yvonne

La ricerca teorica di quelli che sono comunemente definiti come museum studies ha ottenuto negli ultimi vent’anni molta importanza a causa della grande difficoltà nel definire in maniera univoca l’istituzione museale. Un confronto tra i contributi sviluppati dai cosiddetti theorists e quelli che scaturiscono dalla pratica museale, può essere d’aiuto nell’esplorare il significato del...