This paper examines the relationship between market integration and product diversification in a Chamberlinian model of monopolistic competition. In the first version of the model, production of the firm is organised in activities producing either one or two horizontally differentiated...

The present paper examines trade liberalization driven by the coordination of product standards. For oligopolistic firms situated in separate markets that are initially sheltered by national standards, mutual recognition of standards implies entry and reduced profits at home paired with the...

This paper presents a two-country intra-industry trade model with bilateral ad valorem tariffs and fixed export costs that are heterogeneous across firms. In this model not all firms will choose to export. We examine the effects of reciprocal changes in the tariff and the fixed export barrier on...

Economic integration has had ambiguous effects on industry concentration. The literature on the topic proposes various explanations for these empirical findings. This paper provides an additional theoretical argument. It shows that in a world of monopolistic competition, integration alone...

This paper examines the remarkable learning-by-doing in the windmill industry since it emerged in the beginning of the 1980's. Green subsidies for producing electricity by wind power has been a precondition for the rapid growth in the production of windmills. Based on time series of prices of...

This paper presents a dynamic international trade model based on monopolistic competition, where observed intra-industry differences at a given point in time reflect different stages of the firm’s life cycle. New product varieties of still higher quality enter the market every period rendering...

The European economic integration has been an ongoing process for nearly a half century. This article discuss initially the concept of integration and then gives an overall assessment of the development of integration on various areas. Evidence points to a remarkable process towards monetary...

On the basis of assessment data on land prices in Danish city areas, a model showing land rent gradients approximated by a third degree polynomial is estimated for 48 individual Danish cities. The intra-urban structure is connected to an inter-urban model by the expansion method, where the...

This paper examines the relation between price differences and quality differences in an oligopoly model with intra-industry trade, where goods are horizontally as well as vertically differentiated. The analysis demonstrates that the ratio of prices is not linked to the ratio of qualities in any...