Cheptea, A.; Gohin, A.; Huchet-Bourdon, Maryline - HAL - 2008
Thanks to its empirical success, the gravity approach is widely used to explain trade patterns between countries. In … this article we question the simple application of this approach to product/sector-level trade on two grounds. First, we … expenditures are not strictly equal to sector productions because some trade costs are incurred outside the sector of interest …