This thesis empirically investigates commonly accepted theories in international economics. Do flexible exchange rates really help reducing external imbalances? Does globalisation always put downward pressure on production prices and markups? Does trade favour high-skilled workers at the expense of lower-skilled workers in advanced economies? The first chapter explores determinants of sustained and sizeable current account adjustments, based on a selection model to jointly assess determinants of current account reversals and their magnitude. These determinants include exchange rate regimes, as well as financial integration variables and structural policies. The second chapter highlights cross-industry heterogeneous responses of prices, prod...