The World Bank, in close collaboration with the United Nations Conference on Trade and Development (UNCTAD), has developed the World Integrated Trade Solution (WITS) for access and retrieval of information on trade and tariffs compiled by various International Organizations:

• The United Nation Statistical Division (UNSD) Commodity Trade (COMTRADE) Data Base that contains Exports and Imports by Commodity and Partner Country. Values are recorded in US Dollars along with a variety of quantity measures. The Data Base includes information for over 130 countries, some of which have been reporting these types of statistics to the United Nations since 1962.The data are recorded according to six internationally recognized trade and tariff classifications.

• The United Nations Conference on Trade and Development (UNCTAD) Trade Analysis Information System (TRAINS) that contains information on Imports, Tariffs, Para-Tariffs and Non-Tariff Measures for 119 countries. The data on tariffs, para-tariffs and non-tariff measures are available at the most detailed commodity level of the national tariffs (i.e., at the tariff line level). The data are recorded according to three internationally recognized trade and tariff classifications.

• The World Trade Organization (WTO) Integrated Data Base (IDB) that contain Imports by Commodity and Partner Country and MFN Applied Tariffs for over 80 countries at the most detailed commodity level of the national tariffs; and, the Consolidated Tariff Schedule Data Base (CTS) that contains WTO Bound Tariffs, Initial Negotiating Rights (INR) and other indicators. The CTS is the official source for bound tariffs which are the concessions made by countries during a negotiation (e.g., the Uruguay Round of Multilateral Trade Negotiations). The data are recorded according to two internationally recognized trade and tariff classifications.

With WITS , users can easily check data availability by country and product classification; view these data by the various product classifications, reporting countries, direction of trade flows, products, or years; create and save queries for multiple countries, products, years and flows; create user defined country and product groups; calculate simple averages or weighted tariff rates; and, simulate the effects of tariff reductions.