Bahmani-Oskooee , M. and Ratha, A. (2009) “S-Curve Dynamics of Trade: Evidence from US-Canada Commodity Trade”, Economic Issues, 14(1), pp. 1–16. Available at: https://economicissues.org.uk/index.php/EI_OJS/article/view/12 (Accessed: 5 September 2026).