externalities. These case studies for Belgium confirm earlier results of the ExternE project that external environmental costs of … externalities of urban peak traffic are 2 to 4 times higher than for normal urban driving conditions. Finally, it calculates which …

paid by the winner. We study the impact of these price-externalities on the first-price auction and the second … independently from the identity of the winner. We prove that the first-price auction is not affected by this kind of price-externalities … by the presence of such price-externalities. In any case, in comparison with the first-price auction, the second …

welfare effects of small policy changes in the presence of transport externalities. The model incorporates three types of … externalities: congestion, which has a feedback effect on the behaviour of the economic agents, air pollution and accidents. The … the equity effects of the policy reforms. The second contribution is related to the way in which the externalities are …

encompasses many economic models with externalities and outside options. We show that when outside options are pure (i …

. We approach this omission by analyzing the role of positive and negative externalities of link formation. This yields … general results that relate situations of positive externalities with stable networks that cannot be “too dense” in a well …-defined sense, while situations with negative externalities tend to induce “too dense” networks. …

Relatively little attention has been paid to the role that externalities play in determining the pecuniary returns to … and/or geographical (regional and interregional) externalities. The results point out that while education is a … education between migrants and non-migrants. The paper also finds that household, regional, and interregional externalities …