De EconomistDecember 1957, Volume 105, Issue 1, pp 662–693 | Cite asDe eenheid der wereldAuthorsAuthors and affiliationsW. BrandArticle 26 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© De Erven F. Bohn N.V. 1957Authors and AffiliationsW. BrandThere are no affiliations available