Media type: E-Article Title: Weak spots must be removed Contributor: Lahnstein, Manfred imprint: Walter de Gruyter GmbH, 1980 Published in: Intereconomics Language: English DOI: 10.1007/bf02928579 ISSN: 0020-5346; 1613-964X Keywords: Economics, Econometrics and Finance (miscellaneous) ; Business, Management and Accounting (miscellaneous) Origination: Footnote: Access State: Open Access