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Corporate Warfare: Sudameris and the Franco–Italian Banking Rivalry in South America, 1945–1960

Published online by Cambridge University Press:  24 March 2026

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Abstract

This article examines the postwar Franco-Italian struggle over Sudameris (Banque Française et Italienne pour l’Amérique du Sud), a multinational bank operating across South America. After 1945, Paribas sought to transform Sudameris into a French institution, backed by government pressure and asset sequestration. Italy’s Banca Commerciale Italiana (BCI) resisted, regaining majority control in 1948 through strategic share acquisitions. The ensuing conflict (1948–1955) centered on executive power. Paribas relied on French corporate law to maintain managerial dominance, while the BCI finally succeeded in appointing an Italian managing director in 1955. Under Italian leadership, Sudameris shifted from transactional to relationship banking in South America, reversing stagnation and achieving renewed growth by 1960. Sudameris’s early postwar history reveals how postwar European economic rivalries extended into South America and how multinational banks adapted to nationalist environments amid the contradictory forces of regional integration and global competition.

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Article
Copyright
© The Author(s), 2026. Published by Cambridge University Press on behalf of Business History Conference
Figure 0

Figure 1. French, Italian and Swiss exports to South America, 1948–1959 ($ million)Sources: United Nations Statistical Office, Historical Statistics of the World Economy, 1900–1960, Direction of Trade tables (New York, 1962)Figure 1. Long description.

Figure 1

Table 1. Sample of Italian multinational manufacturing and insurance companies operating in South America under different organizational forms, 1945–1964Table 1. Long description.

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Table 2. Sudameris shareholdings by group, 1938–1952Table 2. Long description.

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Table 3. Ranking of foreign banks in South America by Capitalization, 1945Table 3. Long description.

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Table 4. Capital and reserves of Sudameris in 1952 ($ million)Table 4. Long description.

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Table 5. Foreign currency deposits of Sudameris as a % of total bank deposits, (1936–1952)Table 5. Long description.

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Table 6. Non-foreign currency deposits of Sudameris as % of total bank deposits (1936–1952)Table 6. Long description.

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Table 7. Sudameris deposits and liabilities, absolute values (US$ millions), 1946–1960Table 7. Long description.

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Table 8. Sudameris deposits and liabilities, percentages and growth rates, 1946–1960Table 8. Long description.

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Figure 2. Sudameris’s assets, 1948-1960 ($ million)Sources: AHBNPP, 11AH/1145, Banque Française & Italienne purl’Amérique du Sud, Assemblée générale ordinaire, various yearsFigure 2. Long description.