[eng] Motorways and Rural Space — Economie Aspects - The article first describes the general characteristics of the Belgian motorway system and recent developments. It situates the general conceptions on which the building of these motorways is based in the political context. It then gives...

[eng] The factors responsible of the variation of the relative average devoted to the cereals in the regions of the European Economic Community - This paper summarizes the results of a research whih aim to identify the factors responsible of the variation of the relative average devoted to the...

[fre] La présente étude a pour but d'analyser la variation à court terme des revenus agricoles beilges pendant la période 1955-1974. Par variation à court terme, il faut comprendre essentiellement la variation du revenu agricole d'une année à la suivante. . Nous la recherchons d'abord...

[eng] The first part of the article consists of a theoretical development : the parameters acting as marginalizing factors are defined, i.e. the continual decrease of farm income and the passage from the group of profit-earning farms to that of non profit-earning. . In the second part, the...

[fre] Dans un millier d'exploitations agricoles belges dont la comptabilité a été tenue par l'Institut Economique Agricole pendant l'exercice comptable 1968-69, les revenus du travail par unité de travail ont été analysés. L'influence des deux facteurs considérés a été mise en...

[eng] The aim of this article is to discover the impact of inflation and more particularly of its increase during the seventies on the evolution and the variability of prices affecting farms. . To this end, we first analyse the variations noticed in input prices and farm product prices during...

[eng] The technical progress in the Belgian pig sector, 1950-70 - This paper analyses the nature and impacts of technology on the Belgian pig sector for the last twenty years, so as the improvements which have resulted from it. . Two types of progress are studied : (a) biological progress...