A three-sector macro model of the Chinese economy is developed in which the activity of state-owned enterprises (SOEs) is constrained by the state-imposed credit plan for working capital. Our analysis indicates the weaknesses of credit control and nominal interest rate increases as tools for...

This paper develops a new class of homothetic preferences which generate Marshallian demand curves for individual goods which can be concave, convex or linear in own price under the assumption that agents treat aggregate price indices as given (as in the Dixit-Stiglitz (1977) monopolistic...

In this paper a unified framework is developed for modelling imperfect competition in a monopolistic economy and in a unionised economy in a dynamic setting. Concentrating on the steady state analysis, a graphical approach is developed in consumption/leisure space. In both cases, there is a...

We study how the migration from an old to a new technology is affected by the access price to the old technology. We show that both the incumbent and the regulator are willing to set a very high access price to accelerate consumers' migration to the new technology. When the quality of the old...

In this paper we build a spatial, aspiration-based model of learning in the context of Cournot oligopoly from which we want to explore the conditions that lead to the emergence of cooperation among firms. We consider an economy consisting of many identical duopolies; each duopoly is placed on a...

This paper offers a methodology to assess the internal productive efficiency of National Regulatory Authorities (NRAs) based on the performances of regulated markets, measured in terms of the degree of market efficiency (either static or dynamic). The estimation procedure is based on a Data...

Despite a general trend of lower charges for mobile calls, prices for international roaming calls have remained at levels surprisingly high. The apparent reluctance of European mobile network operators to lower roaming tariffs is generating many antitrust concerns. This paper discusses in a two...

We study how the migration from an old to a new technology is affected by the access price to the old technology. We show that both the incumbent and the regulator are willing to set a very high access price to accelerate consumers' migration to the new technology. When the quality of the old...

Despite a general trend of lower charges for mobile calls, in Europe prices for international roaming calls have remained at levels surprisingly high. The apparent reluctance of mobile network operators to lower roaming tariffs is generating many antitrust concerns. This paper presents in a two...

In this paper we study the results of three well-known experiments on duopoly markets, in which participants played a repeated market game in similar experimental conditions.We address two different questions: which learning theory is better able to describe the players' decisions in the...