We analyse technological progress when knowledge has a large tacit component so that transmission of knowledge takes place through direct personal imitation. It is shown that the rate of technological progress depends on the number of innovators in the same knowledge network. Assuming the...

We derive gravity equations from three different general equilibrium models incorporating multinational firms. We show that gravity equations are particularly adapted to the analysis of foreign affiliates' activities of multinational firms. However, the different theoretical models lead to...

A unilateral tax on CO2 emissions may drive up indirect carbon imports from non-committed countries, leading to carbon leakage. Using a gravity model of carbon trade, we analyze the effect of the Kyoto Protocol on the carbon content of bilateral trade. We construct a novel data set of CO2...

Gravity equations explaining foreign affiliates' sales are ad hoc and hence, estimated coeffcients are hard to interpret. We therefore provide the theoretical underpinnings of the gravity equation applied to the analysis of sales of foreign affiliates of multinational firms. We argue that the...

To serve foreign markets, firms can either export or set up a local subsidiary through horizontal Foreign Direct Investment (FDI). The conventional proximity-concentration theory suggests that FDI substitutes for trade if distance between countries is large, while exports become more important...

We analyze the distribution of economic activity across space for different types of activity and different levels of aggregation. Not only is this distribution highly uneven (independently of the type of activity and level of aggregation), it is also remarkably regular regarding its size...

Processes of regional economic integration have been shaping the economic relations between countries significantly during the last decades. In addition, an increasing integration of the national economies into the global economy has affected these economic relations, too. In an effort to...

Many economists believe that, while openness to trade increases average GDP growth rates, it also raises output volatility by exposing countries to terms-oftrade shocks. This view does not take into account that, as suggested by a recent strand of the financial fragility literature, commercial...

Financial stability is an important policy objective, since crises are associated with large economic, social and political costs. Promoting stability requires preventing 'sudden stops' in capital flows, which are events in which foreign financing abruptly disappears. This paper contributes to...