The Marshall Lerner Condition and Money Demand: A Note

  • Alessandro SACCAL Independent Researcher, Italy


What are the respective effects of a unit increase in money demand on the real exchange rate and on the current account, all else equal? The real exchange rate is known to appreciate, but the current account need not deteriorate, as the canonical Marshall Lerner condition instead seems to suggest. As this work presents, the current account deteriorates by virtue of a real exchange appreciation due to a fall in the real money supply, all else equal, and vice versa; it further specifies that the current account improves by virtue of a real exchange rate appreciation due to a rise in money demand, all else equal, and vice versa.


[1] Carnevali, E., Fontana, G. and Passarella, M. V. 2020. Assessing the Marshall-Lerner Condition within a Stock-Flow Consistent Model. Cambridge Journal of Economics, 44: 891-918. DOI:
[2] Devereux, M.B. 2000. How does a Devaluation Affect the Current Account? Journal of International Money and Finance, 19: 833 - 851. DOI:
[3] Johnson, H.G. 1972. The Monetary Approach to the Balance-of-Payments Theory. Journal of Financial and Quantitative Analysis 7: 1555 - 1572. DOI:
[4] Krugman, P., Obstfeld, M. and Mélitz, M. 2018. International Economics: Theory and Policy.Pearson, Eleventh Edition. Available at:
[5] Lombardo, G. 2001. On the Trade Balance Response to Monetary Shocks: the Marshall-Lerner Condition Reconsidered. Journal of Economic Integration, 16(4): 590-616. DOI:
[6] Özçam, A. 2020. An Explicit Partial-Equilibrium Model to Justify the Generalized Marshall-Lerner Condition (GML). Metroeconomica 00, 1-16. DOI:
[7] Saccal, A. 2022. Marshall Lerner Condition for Money Demand. Journal of Applied Economic Sciences, 75: 21-26.
How to Cite
SACCAL, Alessandro. The Marshall Lerner Condition and Money Demand: A Note. Theoretical and Practical Research in the Economic Fields, [S.l.], v. 13, n. 1, p. 102 - 110, june 2022. ISSN 2068-7710. Available at: <>. Date accessed: 14 aug. 2022.