1. Arndt, Sven W., ‘The Comparative Merits of Fixed versus Flexible Exchange Rates: A Comment’, Journal of Money, Credit, and Banking, May 1971.
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3. Black, John (unsigned), ‘Exchange Rates on a Moving Average’, The Economist, 4 November 1961, p. 486.,
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5. Black, John (unsigned), private correspondence with the author, 1969.