The Handbook provides guidance on the measurement of economic characteristics in population censuses, based on relevant experiences of countries, with a particular focus on the questions used and the requirements for processing of responses.

The UN Model Convention is a non-binding instrument which aims to provide guidance to countries in designing double tax treaties, as well as in applying and interpreting them. It is developed and updated by the UN Committee of Experts on International Cooperation in Tax Matters, a subsidiary body of the Economic and Social Council, composed by 25 members from developed and developing countries acting in their personal capacity. The UN Model Convention is formulated to take into account the specific needs of developing countries in designing double tax treaties in line with their own policy framework.