Financial market integration during the interwar period: on the eects of Gold Standard adoption on stock markets Raphaël Hekimian* Cécile Couharde Carl Grekou February 1, 2018 Abstract This paper assesses the eect of monetary integration on stock market correlations between Belgium, France and the US during the interwar period (1919-1939). Our comparative analysis relies on an original dataset including high quality value-weighted stock price indices on a monthly basis. Contrary to the common wisdom, we nd that cross-correlations increased before the beginning of the international nancial crisis of the 1930s. Financial linkages between stock markets tightened during the Gold Exchange Standard period, showing that monetary integration has strongly aected the co-movement of stock returns especially between the Belgian-US and the French-US stock mar- kets. JEL Classication: E63, G15, N22, N24 Keywords: Exchange rate regime, Financial market integration, Interwar pe- riod, Stock market correlations *EconomiX-CNRS and Paris School of Economics. Email:
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[email protected] 1 1 Introduction Since the global nancial crisis of 2007-2008 and the subsequent Euro area sovereign debt crisis of 2010-2011, there have been raising concerns about the potential exit of a member from the currency union. After Greece's dramatic monetary fate and the subsequent "Grexit" fear, attention has now shifted to a much larger economy, namely Italy. Political uncertainty surrounding the Prime Minister Renzi's referen- dum about a large constitutional reform, added to poor economic performances have raised fears about the country's ability to remain in the Eurozone.