This paper introduces a general model to analyze the effects of regulation on company risk. In particular, we consider two determinants of systematic risk: the company’s overall risk and the correlation between the regulated company’s value and the market. Theoretical findings indicate that...

The paper aims to analyze the different connectivity models employed to measure hub connectivity and airport accessibility. They are classified in terms of considered variables, underlying models and obtained results. We compute eight different measures of hub connectivity and airport...

From a number of encyclopaedic entries (Economic methodology, Methodological pluralism, Economic “laws”, Economic models, Microeconomics, Utility) it should emerge the peculiar status of “laws” and “models” in economics.

In the last period of his professional life Mark Blaug (1927-2011) repeatedly intervened with a series of papers characterised by a critical attitude towards both Whig history and the formalist turn in modern economics. At the same time, however, he never abandoned his long standing commitment...

È argomento da tempo controverso se la dimensione “politica” dell’economia possa sopravvivere alla richiesta di rigore teorico e di adeguata formalizzazione matematica dei propri modelli. Talvolta sembra quasi ci si debba rassegnare ad avere una “scienza naturale” senza...

This paper analyses the value determinants for both airports and airlines. The analysis is based on a sample of 24 airport operators and 87 airlines, listed on international financial markets on 31 December 2007. We analyse the value drivers for both airlines and airports by studying the...

This paper investigates the connectivity of the airport networks in China, Europe and US. Our aim is to analyze which network is most beneficial to final passengers in terms of travel time and which of the network features lead to such a result. A time-dependent minimum path approach is employed...

This paper investigates the connectivity of the European air transportation network. A time-dependent minimum path approach is employed to calculate the minimum travel time between each pair of airports in the network, inclusive of flight times and waiting times. The connectivity offered by each...

We analyse the pricing policy adopted by Ryanair, the main low-cost carrier in Europe. Based on a year's fare data for all of Ryanair's European flights, using a family of hyperbolic price functions, the optimal pricing curve for each route is estimated. The analysis shows a positive correlation...