Carlo Cambini

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a r t i c l e i n f o In this paper, we analyze the incentives of an incumbent and an entrant to migrate from an " old " technology to a " new " technology, and discuss how the terms of wholesale access affect this migration. We show that the coverage of the new technology varies non-monotonically with the access price of the old technology: a higher access(More)
We study the impact of reciprocal access charges on the incentives to invest in networks of higher quality. We show how private and social preferences always diverge once investments are endogenized. Private negotiations never lead to charges being set at their marginal cost. Whether or not marginal cost charges have good dynamic properties depends on the(More)
This paper examines the investment and financial decisions of a sample of 92 EU regulated utilities, taking into account key institutional features of EU public utilities, such as: a) regulation by agencies with various degrees of independence; b) partial ownership of the state in the regulated firm; and c) the government’s political orientation, which may(More)
When defining how to implement tendering procedures for the regional bus transportation industry, one of the main problems local authorities have to face is setting the area size to be assigned as franchised monopoly. This paper’s aim is to analyze the topic by combining some empirical results and evidence from recent experience [developments] in the(More)
This paper analyses the cost structure of a sample of Italian local public transport (LPT) companies operating in medium and large urban centres. The main focus is to identify the proper network configuration for the LPT service, by verifying the presence and the extent of scale and density economies. Technological characteristics of public transit systems(More)
A vertically integrated incumbent and an OLO (Other Licensed Operator) compete in the market for broadband access. The incumbent has the option to invest in building a Next Generation Network that covers all urban areas with similar demand structures. The investment return in terms of demand increase is uncertain. We compare the impact of different access(More)
This paper presents a model of competition between an incumbent firm and an Other Licensed Operator (OLO) in the broadband market, where the incumbent has an investment option to build a Next Generation network (NGN) and it can do so by making an investment sharing agreement with the OLO, or alone. Two different kinds of investment sharing contractual forms(More)
Using the Laffont, Rey and Tirole (1998) framework, a model of competition between vertically integrated telecommunications networks in a deregulated environment is developed. Two local operators compete in linear and non linear tariffs (i.e. two-part tariffs) in the subscribers market. In addition, they are integrated downstream in a potentially(More)
This study investigates the effects of the corporatization process – i.e. the transformation of a municipal firm into a limited responsibility company – on the production costs of local public services whose ownership is maintained by the local government. To that purpose, we use information on a typical local utility such as the bus service provided by(More)