UNCTAD`s membership assistance aims to enable candidate countries to better define their trade objectives and integrate them effectively into their development plans, promote their interests in international trade negotiations, monitor and enforce international regulatory practices, develop and sequence international regulatory practices, and exploit trade opportunities offered by the multilateral trading system. The starting point of this survey is the two chapters on trade agreements in the previous volume of the International Economics Manual (1995), robert Staiger`s chapter on international trade policy rules and institutions and Richard Baldwin and Anthony Venables” “Regional Economic Integration.” I will focus, in most cases, on the progress of the literature on trade agreements after 1995; I refer the reader to the previous volume of this textbook of literature before 1995. Strengthen commercial capacity to support national institutional structures (including the academic community) through joint training and analysis of relevant problem areas. U.S. tariffs are at their lowest in history. Before the Second World War, they were up to 40% for some imports. Today, customs revenues account for less than 5% of the volume of imports and the dollar, and many imports are exempt from tariffs and quotas. Non-tariff barriers have also been largely eliminated, but not completely. Trade agreements designated by the WTO as preferential agreements are also referred to as regional agreements (RTAs), although they are not necessarily concluded by countries within a given region. Currently, 205 agreements are in effect as of July 2007.
More than 300 people have been notified to the WTO.  The number of free trade agreements has increased significantly over the past decade. Between 1948 and 1994, the General Agreement on Tariffs and Trade (GATT), predecessor to the WTO, received 124 notifications. Since 1995, more than 300 trade agreements have been concluded.  The IMF strives to promote international economic cooperation, international trade, employment and exchange rate stability. The rest of the chapter unfolds as follows. In Section 2, we present a number of models and outline the problem that a trade agreement could solve. Based on our findings in Section 2, Section 3, reciprocity is addressed, Section 4 deals with links and overhangs.