This paper introduces a new trade model type. It combines the gravity model, well-known in international economics, with network theory. With this approach, complicated trade networks can be algebraically solved in form of systems of linear (differential) equations. Business cycles and productivity shocks can be represented via complex numbers or the Laplace transformation. With the help of thi...

96 words Text (including References, Tables and Appendices): 13,216 words JEL classifications: I12, I31, I20, I18

The equilibrium relationship between trade and the spatial distribution of economic activity is fundamental to the analysis of national and regional trade patterns, as well as to the effect of trade frictions. We study this relationship using a trade model with a continuum of regions, transport costs, and agglomeration effects caused by production externalities. We analyze the equilibrium speci...

In the last decade we have seen a significant change in the composition of capital flows to developed as well as to developing countries. In this paper we investigate empirically the links between the volatility of monetary macroeconomic aggregates, as a measure of country specific measure of relative risk, and the structure of external liabilities in developed and developing countries. We esti...

The empirical “gravity” equation is extremely successful in explaining bilateral trade. This paper shows how a multi-country model of specialization and costly trade (i.e. a microfounded gravity model) can be applied to explain empirical exchange rate puzzles. One such puzzle is the fact that nominal exchange rates are enormously volatile, but that this volatility does not appear to affect infl...

abstract since the islamic revolution of 1987, iran has been affected by economic sanctions imposed by western countries, especially the u.s. since 2006 and with the development of the iranian nuclear conflict, the united nations has frequently imposed economic and financial sanctions against iran. as a result of these international restrictions and their administration by an international orga...

Article history: Received 18 March 2009 Received in revised form 11 September 2009 Accepted 2 March 2010 Available online 7 March 2010 JEL classifications: C92 D03 H41

This appendix contains additional analyses that we mention but do not report in the paper to preserve space.  Table IA.1: Cross-sectional gravity models (baseline equation (2)) on a sample that includes the natural resources industries.  Table IA.2: Cross-sectional gravity models (baseline equation (2)) with acquirer and target country fixed effects (instead of acquirer and target country cha...

NATO members have been coping with low motivation and morale. Such environments typically high turnover intentions neglect behavior. However, safety behavior is paramount for military organizations can serious consequences. Social exchanges are often cited as the main reason these phenomena. We therefore examine compliance of 1,593 airmen from a European Air Force by focusing on different psych...

The ongoing depletion of fossil resources, the energetic autonomy countries, soaring prices for petroleum and climate change have stimulated research development on renewable energy as biofuels. In this work, a bibliometric analysis Web Science database was carried out to identify related sugar beet equation logistic used quantitatively describe growth publication in biofuels field. results sho...