Forest products conversion factors provides ratios of raw material input to the output of wood-based forest products for 37 countries of the world. Analysts, policymakers, forest practitioners and forest-based manufacturers often have a need for this information for understanding the drivers of efficiency, feasibility and economics of the sector. In addition, conversion factors are often needed to convert from one unit of measure to another. The publication also includes explanations on the units of measure, the drivers of the ratios, as well as information on physical properties of wood-based forest products. Finally, where reported factors were unavailable, factors from other sources are given.

Gross National Product, Canada, 1870-1926: The Derivation of the Estimates sets out in detail the sources of data and methods employed to obtain annual estimates of the gross national product of Canada between 1870 and 1926. Many other data used in compilation of the estimates or as a basis for assessing the accuracy of the estimates are also provided. This information is an important contribution to Canadian economic history, revealing growth and fluctuations in the Canadian economy and providing research material for other scholars.

This book is the only in its kind to review the commodity coding, definitions and methodology applying to the collection of forest products production and trade statistics. The analysis – both qualitative as quantitative - contains valuable information for anybody who want to gain more insight in the methodology behind the figures. Recommendations are made for improving the data collection framework. Special attention has been given to the comparability of commodity coding systems, comparability of terms and definitions at the national and international levels, conversion factors to convert volume and weight, double counting and the coverage of production and trade of tropical timber and its products. This relates to the efforts of the ECE, FAO, EUROSTAT and ITTO who jointly collect such statistics from their member states, with the aim to streamlining the collection process and to reducing the burden for their statistical correspondents. Data on commercial trade of all commodities, among which forest products, is also collected by UN – COMTRADE and Eurostat – COMEXT. The possible use of their data for reporting to the joint questionnaire is used.